Keep the distributor turning in step with the camshaft with the Dorman - HELP Distributor Drive Gear, part number 90455. It fits many vehicles, among them the 1977-1985 Ford F-150 4.9L / 5.0L / 5.8L / 6.6L / 6.9L / 7.5L, 1982-1986 Ford Mustang 2.3L / 3.3L / 3.8L / 4.1L / 4.2L / 5.0L / 5.8L / 6.4L / 7.0L and 1977-1985 Ford F-250 4.9L / 5.0L / 5.8L / 6.6L / 6.9L / 7.5L, as a direct-fit replacement for the listed applications. Listed engines include the L6-4.9L, V8-5.0L and V8-5.8L. Dorman designed this gear to mirror the original in fit, function and appearance, and built it for durability and dependable performance.
- Direct replacement: Shares the original gear's fit, function and look on the listed applications.
- Ideal solution: A dependable choice when the original gear has failed from moisture infiltration or vibration.
- Durable construction: Made from Carbon Ultra-poly material using quality components, intended for reliable performance.
- Trustworthy quality: Supported by a U.S.-based team of product experts and more than a century of automotive experience.
A distributor drive gear engages the camshaft drive gear to turn the distributor shaft. If worn or damaged gear teeth are behind erratic ignition timing, stalling or a no-start, this gear replaces the worn part. Diagnose the cause before replacing it.
In the box: one distributor gear, with a roll pin included. No drilling is required, and the gear has no coating. The listed applications use one gear. Country of origin: China. See the "Vehicles it fits" section for the full list of vehicles and engines.
Interchange: C9Z12390A
Frequently Asked Questions
What does a distributor drive gear do?
It engages the camshaft drive gear and turns the distributor shaft, so the distributor rotates in step with the engine.
Which vehicles does the Dorman 90455 fit?
It fits many vehicles, including the 1977-1985 Ford F-150 4.9L / 5.0L / 5.8L / 6.6L / 6.9L / 7.5L and 1977-1985 Ford F-250 4.9L / 5.0L / 5.8L / 6.6L / 6.9L / 7.5L. See the "Vehicles it fits" section for the full list.
What is included in the package?
The package contains one distributor gear with a roll pin included. The gear is made from Carbon Ultra-poly material and has no coating.
Is drilling required to install this gear?
No, drilling is not required, and a roll pin comes with the gear. Follow the vehicle service information for the correct installation procedure.
What are signs a distributor drive gear may need replacing?
Signs can include worn or chipped gear teeth, erratic ignition timing, stalling or a crank-no-start. Diagnose the cause first, since other ignition faults can cause the same symptoms.
