Description
Speedometer Cable Firewall Grommet – 1964–1976 Dodge Plymouth A-Body, B-Body & E-Body
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.
Key Features
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OE-style rubber firewall grommet
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Designed for speedometer cable firewall sealing
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Correct size and profile for factory openings
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Flexible rubber construction for proper fit and sealing
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Also suitable for shaker scoop cable applications
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Can be used as a 1/4-inch trunk vapor line grommet
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Ideal for Mopar interior and engine bay restoration
Vehicle Compatibility
Dodge / Plymouth A-Body
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1967–1976 Dart
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1967–1969 Barracuda
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1970–1974 Duster, Demon, Valiant, Scamp
Dodge / Plymouth B-Body
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1964–1974 Charger, Coronet, Super Bee
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1964–1974 Belvedere, Satellite, GTX, Road Runner
Dodge / Plymouth E-Body
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1970–1974 Challenger
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1970–1974 Barracuda
Notes or Fitment Clarifications
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Designed for speedometer cable firewall applications
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Also used for shaker scoop cable routing
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Suitable for 1/4-inch trunk vapor line sealing
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OE-style replacement grommet
This fits:
Vehicle Application(s)
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