Pioneer Cables FRG-138RY Clutch Flywheel Ring Gear

Pioneer Cables FRG-138RY Clutch Flywheel Ring Gear

The Pioneer Cables FRG-138RY is a clutch flywheel ring gear built for starter engagement on select Ford and Mercury applications. It is sized to match the original part dimensions for proper crank engagement, dependable operation, and long service life.

Key Features

• Inside diameter: 10.475 in.
• Outside diameter: 11.642 in.
• Thickness: 0.373 in.
• Tooth quantity: 138
• OE-style replacement ring gear for flywheel service
• Direct replacement for worn or damaged starter ring gear teeth

Detailed Description

This Pioneer Cables FRG-138RY ring gear is designed for the flywheel assembly where the starter motor engages the teeth to crank the engine. The measured dimensions, including the 10.475-inch inside diameter, 11.642-inch outside diameter, and 0.373-inch thickness, are critical for correct fitment and starter alignment. The 138-tooth design supports proper engagement on applications such as Ford Explorer, Ford Ranger, Ford Bronco II, Ford Aerostar, Ford Mustang, Ford Pinto, and Mercury Capri or Bobcat models listed below. This part cross-references AMS Automotive 4736 for the same application.

Vehicle Fitment

• Fits 1991-2000 Ford Explorer, N/A. Notes: Width 0.373"; Teeth 139; Outer Diameter 11.642"; Inner Diameter 10.475".
• Fits 1983-2000 Ford Ranger, N/A. Notes: Width 0.373"; Teeth 139; Outer Diameter 11.642"; Inner Diameter 10.475".
• Fits 1986-1990 Ford Bronco II, N/A. Notes: Width 0.373"; Teeth 139; Outer Diameter 11.642"; Inner Diameter 10.475".
• Fits 1986 Ford Aerostar, N/A. Notes: Width 0.373"; Teeth 139; Outer Diameter 11.642"; Inner Diameter 10.475".
• Fits 1979 Ford Mustang, N/A. Notes: Width 0.373"; Teeth 139; Outer Diameter 11.642"; Inner Diameter 10.475".
• Fits 1975-1979 Ford Pinto, N/A. Notes: Width 0.373"; Teeth 139; Outer Diameter 11.642"; Inner Diameter 10.475".
• Fits 1975-1979 Mercury Bobcat, N/A. Notes: Width 0.373"; Teeth 139; Outer Diameter 11.642"; Inner Diameter 10.475".
• Fits 1979 Mercury Capri, N/A. Notes: Width 0.373"; Teeth 139; Outer Diameter 11.642"; Inner Diameter 10.475".
• Fits 1974-1977 Mercury Capri, N/A. Notes: Width 0.373"; Teeth 139; Outer Diameter 11.642"; Inner Diameter 10.475".

What It Helps Address

• Broken or chipped flywheel ring gear teeth
• Starter motor grinding during engine cranking
• Intermittent no-crank conditions caused by worn teeth
• Poor starter engagement on Ford and Mercury manual transmission applications
• Flywheel service where the original ring gear no longer matches specification

Installation Notes and Tips

Verify the flywheel dimensions, tooth count, and starter engagement pattern before installation. The FRG-138RY should be matched to the application by year, make, model, and the listed measurements. For best results, inspect the starter drive and flywheel surface at the same time so worn components are addressed together.

Quality Assurance

Pioneer Cables designs this ring gear to match the fit and function of the original part, with an emphasis on durability and long service life. Use the published dimensions and fitment data to confirm application before installation.