Pioneer Cables FRA-121 Automatic Transmission Flexplate

Automatic Transmission Flexplate for Jeep Wagoneer

Pioneer Cables FRA-121 is an automatic transmission flexplate built to restore OEM-level performance in the drivetrain. It is made from high-grade steel, formed to original dimensions, welded for consistent strength, and precision balanced to factory specifications.

Compatible with 1972-1973 Jeep Wagoneer applications, this flexplate uses 164 teeth and a 13.813-inch outside diameter for the listed fitment. The FRA-121 is a direct replacement choice for Jeep Wagoneer owners needing a correct automatic transmission flexplate with factory-style dimensions.

Key Features

• High-grade steel construction for durability in automatic transmission use
• Original-dimension replacement for proper starter engagement and drivetrain alignment
• Automated welding process for consistent strength and repeatability
• Precision balanced to factory specifications
• 164-tooth design with 13.813-inch outside diameter
• Fits 12-to-14 pitch flywheels

Detailed Description

The Pioneer Cables FRA-121 automatic transmission flexplate is engineered as an OE-style replacement for select Jeep Wagoneer models. Its 164-tooth ring gear, 13.813-inch outside diameter, and 11.5 mm mounting hole diameter are specified to match the listed application, helping maintain correct starter mesh and smooth engine-to-transmission operation. This part cross-references AMS Automotive 4366 for the same application. The FRA-121 is a practical replacement when the original flexplate is cracked, warped, or no longer balancing correctly.

Common Problems This Part Can Address

• Cracked or fatigued flexplate material
• Starter engagement noise caused by worn ring gear teeth
• Vibration from an out-of-balance flexplate
• Drivetrain noise related to flexplate damage
• Incorrect fitment from a mismatched automatic transmission flexplate

Installation Notes and Tips

Verify tooth count, outside diameter, mounting hole diameter, and pitch before installation. Confirm the FRA-121 matches your Jeep Wagoneer automatic transmission setup and inspect the starter, torque converter, and related hardware for wear before reassembly. Proper torque procedures and final runout checks help ensure smooth operation after installation.

Quality Assurance

Pioneer Cables builds this flexplate from original-size specifications using automated welding and factory balancing methods to support consistent fit and performance. The FRA-121 is not SFI approved and does not include an SFI certification sticker.