Pioneer Cables FRA-133 Automatic Transmission Flexplate

Pioneer Cables FRA-133 Flexplate Overview

The Pioneer Cables FRA-133 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 with an automated process for consistent strength, and precision balanced to factory specifications.

Compatible with 1979-1980 Buick Riviera applications, this flexplate is a direct-fit replacement for vehicles requiring 162 teeth and a 13.625-inch outside diameter. The FRA-133 is a practical choice when replacing a worn or damaged flexplate on a Buick Riviera with the correct tooth count and flywheel pitch.

Key Features

• Automatic transmission flexplate for OE-style replacement
• Built from high-grade steel for strength and durability
• Original dimensions for proper drivetrain alignment
• Automated welding process for consistent construction
• Precision balanced to factory specifications
• 162 teeth and 13.625-inch outside diameter
• Mounting hole diameter: 11.5 mm
• Pitch flywheels: 12 to 14

Detailed Product Description

Pioneer Cables FRA-133 is engineered as a replacement automatic transmission flexplate for applications that require a 162-tooth ring gear and a 13.625-inch outside diameter. The plate is manufactured to original dimensions and balanced to factory specs, helping maintain proper starter engagement and smooth rotational performance in the drivetrain. For 1979-1980 Buick Riviera models, the FRA-133 provides the correct fitment details needed for a direct replacement.

This part cross-references AMS Automotive 4334 for the same application. The FRA-133 part number is also commonly referenced in interchange listings for related OE-style replacement needs. If you are sourcing a Buick Riviera flexplate by part number, FRA-133 is the identifier to verify against your existing component.

Common Problems This Part Can Address

• Cracked or warped flexplate surfaces
• Excessive drivetrain vibration from an out-of-balance plate
• Starter engagement issues caused by worn ring gear teeth
• Noise from a damaged or fatigued flexplate
• Replacement needs during automatic transmission service

Installation Notes and Tips

Confirm tooth count, outside diameter, mounting hole diameter, and flywheel pitch before installation. The FRA-133 is listed for 1979-1980 Buick Riviera applications, so verify your existing flexplate against the vehicle’s original specifications and transmission setup. Inspect the starter gear engagement and surrounding drivetrain components during replacement to ensure proper operation after installation.

Quality Assurance

Pioneer Cables manufactures this flexplate using high-grade steel, automated welding, and precision balancing to support consistent fit and factory-style performance. The part is not SFI approved and does not include an SFI certification sticker.