855.444.6872 Contact Us Mon-Sat 10a-6p
DRIVEN BY CARE

Detroit Muscle Technologies Mopar B Body 66-70 NON AC MEGA Firewall Gasket Set -AUTO BXX6670FW01-MA

Detroit Muscle Technologies Mopar B Body 66-70 NON AC MEGA Firewall Gasket Set -AUTO BXX6670FW01-MA
Detroit Muscle Technologies Mopar B Body 66-70 NON AC MEGA Firewall Gasket Set -AUTO BXX6670FW01-MA
$87.99 st
NEWARRIVING SOONEstimated Ship Date 04/20/2026 (If Ordered Today)
Model: 5051841
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
STANDARD
DELIVERY
STORE PICKUP
[More Info]

DMT Mega firewall gasket set for all NON AC 66-70 B Bodies

1966 66 1967 67 1968 68 1969 69 1970 70 Belvedere, Charger, Coronet, Daytona, GTX, Roadrunner, Satellite, Super Bee, Superbird

Contents

  • Wiper pivot gaskets (includes butyl caulk)
  • Driver side fresh air vent to cowl seal
  • Master cylinder gaskets
  • Power brake booster to firewall gasket
  • Brake booster to firewall donut
  • Heater core tube to firewall seals
  • Heater box to firewall stud seals
  • Wiper motor to firewall seal (OEM is molded rubber)
  • Electrical bulkhead gasket set
  • Accel pedal gaskets (smaller one is 66-67, larger one is 68-70)
  • Steering column to firewall gasket
  • Auto trans console shifter linkage to tunnel seal
  • Blower motor to firewall seal
  • Evaporator tubes to firewall seal
  • Heater bypass valve to firewall seal
  • Passenger side A/C box fresh air to cowl seal

Mega Set also contains
Emergency brake cable grommet
Speedometer cable grommet
Clutch rod to firewall boot in MANUAL Mega gasket set or plastic block off hole plug in AUTO Mega gasket set

Material(s)
Same materials as OEM. 

About Detroit Muscle Technologies

In 1977, at 15, my first car was a 70 Barracuda I bought for $600 from my dad's co-worker at Chrysler Huber Ave Foundry. Tawny gold, 318, hub caps. Before I could "legally" drive it it had headers and a 4bbl. Had a couple other Mopars after this as a young man.

25 years later it was time to get another Mopar. After looking for 2 years I found a 1971 B5 blue Challenger right here in Michigan. 318 and hubcaps again. This time it cost over 10x as much, $6500. Didn't take long to add wheels, new leaf springs, 340 6bbl, etc. A year or two later I decided to completely redo the car. Had it media blasted and painted B5 blue again BUT when I went to put it back together I found  there were no good body gaskets sets for Mopars. The gasket making journey began.

In 2004 I first made a kit to redo my Non A/C heater box using a laser engraver/cutter that I had for another side business. I showed the guys on Moparts and quickly had a few orders. I obviously made all the gaskets for my car because I had all the parts for templates. Many parts fit the other E body models so I soon had all the E body gaskets, then more body style, then more heater box kits and the rest is history.

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
Dodge Charger Daytona 1969
Dodge Charger 1966 - 1970
Dodge Coronet Super Bee 1968 - 1970
Dodge Coronet 1966 - 1967
Plymouth Belvedere 1966 - 1970
Plymouth GTX 1967 - 1970
Plymouth Road Runner 1968 - 1970
Plymouth Satellite 1966 - 1970
Plymouth Superbird 1970

Reviews:

Write a Review
* Your Name:
* Email (This will not be displayed)
* Rating:
Comments:

Ask a question about

Detroit Muscle Technologies Mopar B Body 66-70 NON AC MEGA Firewall Gasket Set -AUTO BXX6670FW01-MA: