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MSD Iridium Spark Plug 3720

MSD Iridium Spark Plug 3720
$14.99 ea
NEWOUT OF STOCK
Model: 4017178
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
STANDARD
DELIVERY
MSD's spark plugs are engineered to improve the efficiency of the combustion process to create the most power possible combined with increased durability. The center tip of the plug is made from iridium to promote the best spark and increase resilience. A proprietary ceramic material enhances the dielectric strength of the plug housing forcing the spark, even under extreme cylinder pressures, to jump across the plug gap to the ground electrode. This electrode is machined to expose more spark to the incoming gases to promote the most effective combustion event possible.
Features:
  • Proprietary plug design inside and out
  • Designed for use on high performance vehicles that utilize high output ignition systems
  • Machined electrode increases exposure to the flame to improve combustion
  • MSD’s proprietary ceramic formula provides the highest dielectric strength
  • Yttrium ground electrode reduces the chance of pre-ignition
  • Iridium tip improves cold starts
  • All spark plugs tested prior to packaging and shipping
  • Unique insulator design improves spark isolation
  • Lower voltage Requirements for longer coil life
About MSD Ignition

Racers never stop experimenting as they search for every way to wring out more power or handling performance to to gain an edge over the competition. The team at MSD is no different as we strive to deliver the products you  need to meet your performance goals. We continue to innovate and invent components and technology that deliver  performance and reliability with products that are easy to use and install. 

Over the course of 40-plus years, MSD Performance has been driving the development of innovative components  that helped shape the way our cars race and perform. From super speedways to road courses, land speed racing to  top fuel dragsters, and of course your traditional hot rod, MSD has provided the components to fire nearly anything in  motorsports.

MSD was the first company to develop and offer the multiple sparking, capacitive discharge ignition for engines. The line of MSD 6-Series Ignitions are the most popular aftermarket ignitions in the world due to our race-proven performance on the track and our reliability on the street!

Early on, MSD focused squarely on ignition systems with revolutionary products like the multiple sparking CD ignition, timing and rev controls, billet aluminum distributors and the Pro-Mag, an incredible breakthrough in power  and endurance. 

Today MSD is developing electronics for your entire powertrain. The Atomic EFI systems for the LS engine platform and throttle body are now complemented with a transmission controller. Our DynaForce Starters and Alternators  ensure that your engine cranks over to fire up and the Alternators keep it charged. MSD is poised to deliver components that work and communicate together to provide performance and value.

Videos:

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Submodel Years Engine Fitment Notes
American Motors Concord 1980 2.5L / 151 / L4 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
American Motors Concord 1981 2.5L / 151 / L4 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
American Motors Concord 1982 2.5L / 151 / L4 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
American Motors Eagle 1981 2.5L / 151 / L4 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
American Motors Eagle 1982 2.5L / 151 / L4 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
American Motors Eagle 1983 2.5L / 151 / L4 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
American Motors Spirit 1980 2.5L / 151 / L4 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
American Motors Spirit 1981 2.5L / 151 / L4 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
American Motors Spirit 1982 2.5L / 151 / L4 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Chrysler Cordoba 1980 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Chrysler Cordoba 1981 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Chrysler Cordoba 1982 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Chrysler Cordoba 1983 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Chrysler Fifth Avenue 1983 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Chrysler LeBaron 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Chrysler LeBaron 1979 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Chrysler LeBaron 1980 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Chrysler LeBaron 1981 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Chrysler New Yorker 1982 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Chrysler Newport 1979 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Chrysler Newport 1980 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Chrysler Newport 1981 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Chrysler Town & Country 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Chrysler Town & Country 1979 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Chrysler Town & Country 1980 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Chrysler Town & Country 1981 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Aspen 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Aspen 1977 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Aspen 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Aspen 1979 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Aspen 1980 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B100 Base 1975 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B100 Base 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B100 Base 1977 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B100 Base 1978 5.2L / 318 / V8
3.7L / 225 / L6		 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B100 Base 1979 5.2L / 318 / V8
3.7L / 225 / L6		 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B100 Base 1980 5.2L / 318 / V8
3.7L / 225 / L6		 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B100 1975 3.7L / 225 / L6
Dodge B100 1976 3.7L / 225 / L6
Dodge B100 1977 3.7L / 225 / L6
Dodge B100 1978 3.7L / 225 / L6
Dodge B100 1979 3.7L / 225 / L6
Dodge B100 1980 3.7L / 225 / L6
Dodge B150 Base 1981 5.2L / 318 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B150 Base 1982 5.2L / 318 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B150 Base 1983 5.2L / 318 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B150 Base 1984 5.2L / 318 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B150 Base 1985 5.2L / 318 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B150 Base 1986 5.2L / 318 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B150 Base 1987 5.2L / 318 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B200 Base 1975 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B200 Base 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B200 Base 1977 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B200 Base 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B200 Base 1979 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B200 Base 1980 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B200 1975 3.7L / 225 / L6
Dodge B200 1976 3.7L / 225 / L6
Dodge B200 1977 3.7L / 225 / L6
Dodge B200 1978 3.7L / 225 / L6
Dodge B200 1979 3.7L / 225 / L6
Dodge B200 1980 3.7L / 225 / L6
Dodge B300 Base 1975 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B300 Base 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B300 Base 1977 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B300 Base 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B300 Base 1979 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B300 Base 1980 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge B300 1975 3.7L / 225 / L6
Dodge B300 1976 3.7L / 225 / L6
Dodge B300 1977 3.7L / 225 / L6
Dodge B300 1978 3.7L / 225 / L6
Dodge B300 1979 3.7L / 225 / L6
Dodge B300 1980 3.7L / 225 / L6
Dodge CB300 Base 1975 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge CB300 Base 1977 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge CB300 Base 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge CB300 Base 1979 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge CB300 1975 3.7L / 225 / L6
Dodge CB300 1977 3.7L / 225 / L6
Dodge CB300 1978 3.7L / 225 / L6
Dodge CB300 1979 3.7L / 225 / L6
Dodge Charger 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Coronet 1975 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Coronet 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D100 Custom 1975 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D100 Custom 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D100 Custom 1977 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D100 Custom 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D100 Custom 1979 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D100 Custom 1984 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D100 Custom 1986 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D100 Custom 1987 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D100 Warlock II 1979 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D100 Warlock 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D100 Warlock 1977 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D100 Warlock 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D100 1975 3.7L / 225 / L6
Dodge D100 1976 3.7L / 225 / L6
Dodge D100 1977 3.7L / 225 / L6
Dodge D100 1978 3.7L / 225 / L6
Dodge D100 1979 3.7L / 225 / L6
Dodge D100 1984 3.7L / 225 / L6
Dodge D100 1986 3.7L / 225 / L6
Dodge D100 1987 3.7L / 225 / L6
Dodge D150 Base 1977 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D150 Base 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D150 Base 1979 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D150 Base 1980 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D150 Base 1981 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D150 Base 1982 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D150 Base 1983 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D150 Base 1984 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D150 Base 1985 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D150 Base 1986 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D150 Base 1987 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D150 Miser 1982 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D150 Miser 1983 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D150 1977 3.7L / 225 / L6
Dodge D150 1978 3.7L / 225 / L6
Dodge D150 1979 3.7L / 225 / L6
Dodge D150 1980 3.7L / 225 / L6
Dodge D150 1981 3.7L / 225 / L6
Dodge D150 1982 3.7L / 225 / L6
Dodge D150 1983 3.7L / 225 / L6
Dodge D150 1984 3.7L / 225 / L6
Dodge D150 1985 3.7L / 225 / L6
Dodge D150 1986 3.7L / 225 / L6
Dodge D150 1987 3.7L / 225 / L6
Dodge D250 Base 1981 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D250 Base 1982 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D250 Base 1983 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D250 Base 1984 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D250 Base 1985 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D250 Base 1986 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D250 Base 1987 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D300 Base 1977 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D300 Base 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D300 Custom 1975 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D300 Custom 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge D300 1975 3.7L / 225 / L6
Dodge D300 1976 3.7L / 225 / L6
Dodge D300 1977 3.7L / 225 / L6
Dodge D300 1978 3.7L / 225 / L6
Dodge D350 1981 3.7L / 225 / L6
Dodge D350 1982 3.7L / 225 / L6
Dodge D350 1983 3.7L / 225 / L6
Dodge D350 1984 3.7L / 225 / L6
Dodge D350 1985 3.7L / 225 / L6
Dodge D350 1986 3.7L / 225 / L6
Dodge D350 1987 3.7L / 225 / L6
Dodge Dart 1975 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Dart 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Diplomat 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Diplomat 1979 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Diplomat 1980 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Diplomat 1981 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Diplomat 1982 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Diplomat 1983 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Mirada 1980 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Mirada 1981 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Mirada 1982 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Mirada 1983 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Monaco 1977 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Monaco 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Ramcharger 1975 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Ramcharger 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Ramcharger 1977 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Ramcharger 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Ramcharger 1979 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge Ramcharger 1980 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge St. Regis 1979 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge St. Regis 1980 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge St. Regis 1981 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W100 Custom 1975 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W100 Custom 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W100 Custom 1977 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W100 Custom 1986 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W100 Custom 1987 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W100 1975 3.7L / 225 / L6
Dodge W100 1976 3.7L / 225 / L6
Dodge W100 1977 3.7L / 225 / L6
Dodge W100 1986 3.7L / 225 / L6
Dodge W100 1987 3.7L / 225 / L6
Dodge W150 Base 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W150 Base 1979 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W150 Base 1980 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W150 Base 1981 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W150 Base 1982 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W150 Base 1983 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W150 Base 1984 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W150 Base 1985 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W150 Base 1986 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W150 Base 1987 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W150 1978 5.2L / 318 / V8
3.7L / 225 / L6
Dodge W150 1979 5.2L / 318 / V8
3.7L / 225 / L6
Dodge W150 1980 5.2L / 318 / V8
3.7L / 225 / L6
Dodge W150 1981 5.2L / 318 / V8
3.7L / 225 / L6
Dodge W150 1982 5.2L / 318 / V8
3.7L / 225 / L6
Dodge W150 1983 5.2L / 318 / V8
3.7L / 225 / L6
Dodge W150 1984 5.2L / 318 / V8
3.7L / 225 / L6
Dodge W150 1985 5.2L / 318 / V8
3.7L / 225 / L6
Dodge W150 1986 5.2L / 318 / V8
3.7L / 225 / L6
Dodge W150 1987 5.2L / 318 / V8
3.7L / 225 / L6
Dodge W200 Base 1975 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W200 Base 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W200 Base 1977 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W200 Base 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W200 Base 1979 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W200 Base 1980 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W200 1975 3.7L / 225 / L6
Dodge W200 1976 3.7L / 225 / L6
Dodge W200 1977 3.7L / 225 / L6
Dodge W200 1978 3.7L / 225 / L6
Dodge W200 1979 3.7L / 225 / L6
Dodge W200 1980 3.7L / 225 / L6
Dodge W300 Base 1977 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W300 Base 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W300 Custom 1975 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W300 Custom 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W300 1975 3.7L / 225 / L6
Dodge W300 1976 3.7L / 225 / L6
Dodge W300 1977 3.7L / 225 / L6
Dodge W300 1978 3.7L / 225 / L6
Dodge W350 Base 1982 5.2L / 318 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Dodge W350 1982 5.2L / 318 / V8
Jeep CJ5 1980 2.5L / 151 / L4 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep CJ5 1981 2.5L / 151 / L4 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep CJ5 1982 2.5L / 151 / L4 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep CJ5 1983 2.5L / 151 / L4 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep CJ7 1980 2.5L / 151 / L4 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep CJ7 1981 2.5L / 151 / L4 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep CJ7 1982 2.5L / 151 / L4 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep CJ7 1983 2.5L / 150 / L4
2.5L / 151 / L4		 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep J-100 1969 5.7L / 350 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep J-100 1970 5.7L / 350 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep J-100 1971 5.7L / 350 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep J-2500 1969 5.7L / 350 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep J-2500 1970 5.7L / 350 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep J-2500 1971 5.7L / 350 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep J-2600 1969 5.7L / 350 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep J-2600 1970 5.7L / 350 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep J-2700 1969 5.7L / 350 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep J-2700 1970 5.7L / 350 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep J-3500 1969 5.7L / 350 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep J-3500 1970 5.7L / 350 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep J-3600 1969 5.7L / 350 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep J-3600 1970 5.7L / 350 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep J-3700 1969 5.7L / 350 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep J-3700 1970 5.7L / 350 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep J-3800 1969 5.7L / 350 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep J-3800 1970 5.7L / 350 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep Scrambler 1981 2.5L / 151 / L4 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep Scrambler 1982 2.5L / 151 / L4 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep Scrambler 1983 2.5L / 150 / L4
2.5L / 151 / L4		 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Jeep Wagoneer 1971 5.7L / 350 / V8 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Caravelle 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Caravelle 1979 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Caravelle 1980 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Caravelle 1981 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Caravelle 1982 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Caravelle 1983 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Duster 1974 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Duster 1975 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Duster 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Fury 1975 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Fury 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Fury 1977 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Fury 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Gran Fury 1980 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Gran Fury 1981 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Gran Fury 1982 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Gran Fury 1983 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth PB100 Van 1974 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth PB100 Voyager 1975 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth PB100 Voyager 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth PB100 Voyager 1977 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth PB100 Voyager 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth PB100 Voyager 1979 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth PB100 Voyager 1980 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth PB100 1975 3.7L / 225 / L6
Plymouth PB100 1976 3.7L / 225 / L6
Plymouth PB100 1977 3.7L / 225 / L6
Plymouth PB100 1978 3.7L / 225 / L6
Plymouth PB100 1979 3.7L / 225 / L6
Plymouth PB100 1980 3.7L / 225 / L6
Plymouth PB150 Voyager 1982 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth PB150 Voyager 1983 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth PB150 1982 3.7L / 225 / L6
Plymouth PB150 1983 3.7L / 225 / L6
Plymouth PB200 Van 1974 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth PB200 Voyager 1975 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth PB200 Voyager 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth PB200 Voyager 1977 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth PB200 Voyager 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth PB200 Voyager 1980 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth PB200 1975 3.7L / 225 / L6
Plymouth PB200 1976 3.7L / 225 / L6
Plymouth PB200 1977 3.7L / 225 / L6
Plymouth PB200 1978 3.7L / 225 / L6
Plymouth PB200 1980 3.7L / 225 / L6
Plymouth PB250 Voyager 1982 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth PB250 Voyager 1983 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth PB250 1982 3.7L / 225 / L6
Plymouth PB250 1983 3.7L / 225 / L6
Plymouth Scamp 1975 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Scamp 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Trailduster 1975 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Trailduster 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Trailduster 1977 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Trailduster 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Trailduster 1979 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Trailduster 1980 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Valiant 1975 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Valiant 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Volare 1976 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Volare 1977 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Volare 1978 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Volare 1979 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;
Plymouth Volare 1980 3.7L / 225 / L6 Iridium Tip Spark Plug; Single; Plug Type 6IR4Y; [Available While Supplies Last];0.035 in. Plug Gap;

Specifications:

Emission Code 2
Heat Range 4
Hex Size 5/8
Length Standard
Part Type Spark Plug
Plug Style Code 6IR4Y
Product Type Spark Plug
Projected Tip Yes
Proposition 65 www.P65Warnings.ca.gov
Quantity 1
Reach 0.4375
Resistor Yes
Seat Type Tapered
Style Iridium
Thread Size 14mm
Warranty Limited 1 Year Warranty

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