ATP Parts Z-425 Automatic Transmission Flexplate

ATP Parts Z-425 Flexplate Overview

ATP Parts Z-425 is an automatic transmission flexplate for select Toyota applications. It connects the engine and transmission, transfers starter engagement through the ring gear, and supports torque converter movement as engine speed changes.

Built from high-quality steel with the correct bolt-hole spacing and ring gear teeth, this flexplate is made for direct replacement in Toyota Tacoma, Tundra, 4Runner, T100, and Pickup applications that use 120 teeth and an 11.95-inch outer diameter.

Key Features

• Automatic transmission flexplate for engine-to-transmission connection
• 120-tooth ring gear for starter engagement
• 11.938-inch outside diameter
• 9.13 mm mounting hole diameter
• 10 pitch flywheels
• High-quality steel construction
• OE-style bolt-hole spacing and tooth layout
• ATP Parts Z-425 direct replacement reference

Detailed Description

The ATP Parts Z-425 flexplate is engineered for Toyota automatic transmission applications where the flexplate must handle repeated expansion and contraction during operation. Over time, fatigue can lead to cracks or shearing, and a damaged flexplate can create serious drivetrain damage. This replacement part restores the connection between the crankshaft, torque converter, and starter ring gear with the correct dimensions for the listed vehicles. This part cross-references Pioneer Automotive Industries FRA-465 for the same application.

Compatible With 1995-2004 Toyota Tacoma, 2000-2004 Toyota Tundra, 1988-2002 Toyota 4Runner, 1993-1998 Toyota T100, and 1988-1995 Toyota Pickup. The ATP Parts Z-425 is also referenced by part number 3210135010 in interchange listings.

What It Helps Solve

• Cracked flexplate from metal fatigue
• Sheared or damaged ring gear teeth
• Starter engagement problems caused by worn teeth
• Torque converter connection issues
• Noise or vibration related to a failing flexplate

Installation Notes and Tips

Verify tooth count, outside diameter, and mounting-hole spacing before installation. Match the flexplate to the vehicle’s automatic transmission application and inspect the starter, torque converter, and related hardware for wear before reassembly. Confirm the replacement aligns with the original Toyota fitment for Tacoma, Tundra, 4Runner, T100, or Pickup models.

Quality Assurance

ATP Parts manufactures this flexplate from steel with OE-style dimensions to support proper fit and long service life in the specified Toyota applications. The Z-425 is built to match the original part’s bolt pattern and ring gear configuration for dependable replacement performance.