ATP Parts Z-427 Automatic Transmission Flexplate

ATP Parts Z-427 Flexplate Overview

ATP Parts Z-427 is an automatic transmission flexplate for select Toyota applications. It connects the engine and transmission, providing the ring gear teeth for starter engagement and the correct bolt pattern for the torque converter.

Built from high-quality steel with the proper 115-tooth ring gear and 11.625-inch outside diameter, this flexplate matches the original fitment details needed for Toyota Supra, 4Runner, Pickup, Celica, and Corona applications.

Key Features

• Automatic transmission flexplate for engine-to-transmission connection
• 115 teeth for starter ring gear engagement
• 11.625-inch outside diameter
• 9.0 mm mounting hole diameter
• 10 pitch flywheel specification
• High-quality steel construction for durability
• OE-style bolt hole spacing and ring gear tooth layout
• Not SFI approved and no SFI certification sticker included
• Not weight added

Detailed Description

The ATP Parts Z-427 flexplate is engineered for automatic transmission systems where the flexplate links the crankshaft to the torque converter and provides starter ring gear engagement. Over time, repeated expansion and contraction can lead to cracking or shearing, and a damaged flexplate should be replaced rather than repaired. This ATP flexplate uses the correct 115-tooth count, 11.625-inch outside diameter, and OE-style mounting geometry to support proper alignment in Toyota Supra, Toyota 4Runner, Toyota Pickup, Toyota Celica, and Toyota Corona applications. This part number is also referenced as Z-427 for ordering and identification.

This part cross-references Pioneer Automotive Industries FRA-461 for the same application.

What It Helps Solve

• Cracked or sheared flexplate conditions
• Starter engagement problems caused by damaged ring gear teeth
• Torque converter mounting issues from worn or distorted bolt holes
• Noise or vibration related to a failing flexplate
• Transmission-to-engine connection failure in automatic applications

Installation Notes and Tips

Verify tooth count, outside diameter, and mounting hole spacing before installation. Confirm the application is an automatic transmission setup and match the vehicle-specific notes, including the listed 115 teeth and 11.6-inch outer diameter requirements. Inspect the starter, torque converter, and related mounting surfaces for wear or damage before installing the new flexplate. For fitment reference, this ATP Parts Z-427 flexplate fits 1990-1998 Toyota Supra, N/A; 1990-1995 Toyota 4Runner, N/A; 1984-1985 Toyota 4Runner, N/A; 1976-1995 Toyota Pickup, N/A; 1976-1985 Toyota Celica, N/A; and 1979-1982 Toyota Corona, N/A.

Quality Assurance

ATP Parts manufactures this flexplate from steel with the correct OE-style dimensions and tooth count to match the original part specification. The part number Z-427 is built for direct replacement use in the listed Toyota applications.