The Speedometer Cable Firewall Grommet is an OE-style rubber sealing component designed for a wide range of classic Mopar cars, including Dodge and Plymouth A-Body, B-Body, and E-Body platforms. This grommet installs at the firewall to properly seal the opening where the speedometer cable passes through, helping restore factory-correct appearance and protection in the engine bay and interior. It is an essential detail for Mopar restoration parts projects focused on originality and proper fit.
From the factory, this grommet served multiple purposes—securing the speedometer cable, sealing the firewall against moisture and fumes, and preventing chafing of the cable housing. Over time, original grommets often harden, crack, or go missing, leaving exposed firewall openings and an unfinished look. Replacing the grommet restores the original sealing function while protecting surrounding components.
Manufactured to OE-style dimensions, this rubber grommet is shaped to fit the factory firewall opening used across multiple Mopar platforms. Its flexible construction allows it to seat correctly while maintaining a snug fit around the cable. In addition to speedometer cable use, this grommet is also commonly used as a Shaker Scoop cable firewall grommet and as a 1/4-inch trunk vapor line grommet, making it a versatile solution for multiple restoration needs.
Correct for numerous Dodge and Plymouth applications from the mid-1960s through the mid-1970s, this grommet supports accurate restoration of both engine bay and interior firewall details. Whether completing a concours-level Mopar build or refreshing original components, this OE-style grommet helps ensure proper routing, sealing, and factory-style appearance.
Auto Metal Direct is a team of true car guys with years of experience in sheet metal reproduction, car restoration and paint/body work. We believe that quality is not subjective! Our mission is to provide the best customer experience for the Ford, Mopar and GM classic car markets - both in products and in service.
Our panels are made from proper gauge steel and include all correct-as-original clips, tabs, flanges, bends and seams. Each time a prototype body panel comes off of a new tooling, we test fit it on a car. The marked up prototype is then used to change and improve the tools, and a new prototype is produced. This procedure might be repeated multiple times but, once the part is finally approved, you can be assured of a quality part.
| Make | Model | Years |
| Dodge | Challenger | 1970 - 1974 |
| Dodge | Charger | 1966 - 1974 |
| Dodge | Coronet | 1964 - 1974 |
| Dodge | Dart | 1967 - 1976 |
| Plymouth | Barracuda | 1970 - 1974 |
| Plymouth | Belvedere | 1964 - 1971 |
| Plymouth | Duster | 1970 - 1976 |
| Plymouth | GTX | 1967 - 1971 |
| Plymouth | Road Runner | 1968 - 1974 |
| Plymouth | Satellite | 1965 - 1974 |
| Plymouth | Scamp | 1971 - 1976 |
| Plymouth | Valiant | 1967 - 1976 |
| Brand | FDC |
| Weight | 1 lbs |
