ATP Parts Z-165 Automatic Transmission Flexplate

ATP Parts Z-165 Flexplate Overview

ATP Parts Z-165 is an automatic transmission flexplate for applications that use a one-piece crank seal engine. It is built from high-quality steel with the correct bolt-hole spacing and 153-tooth ring gear layout to match the original fit and function. This flexplate is used in a wide range of Chevrolet Camaro, Pontiac Firebird, and other GM rear-wheel-drive applications.

Key Features

• Automatic transmission flexplate for GM applications
• 153 teeth with a 12.875-inch outside diameter
• Mounting hole diameter: 10.63
• For one-piece crank seal engine applications
• Weight added design
• High-quality steel construction for durability
• Correct bolt-hole spacing and starter ring gear teeth

Product Details

The ATP Parts Z-165 flexplate connects the engine to the torque converter in automatic transmission systems and provides the starter ring gear engagement needed for cranking. As engine speed changes, the flexplate accommodates torque converter expansion and contraction while maintaining reliable alignment. Over time, flexplates can crack or shear from repeated stress, and a damaged unit must be replaced rather than repaired. This ATP flexplate is made to match original dimensions and tooth count for proper fitment in applications such as 1986-1997 Chevrolet Camaro, 1986-1997 Pontiac Firebird, and other listed GM vehicles. This part cross-references Pioneer Automotive Industries FRA-160 for the same application.

What It Helps Fix

• Cracked flexplate from age or repeated stress
• Sheared flexplate around the crank or converter mounting area
• Starter engagement problems caused by worn ring gear teeth
• Noise or vibration related to a damaged flexplate
• Torque converter connection issues in automatic transmission systems

Installation Notes and Tips

• Verify 153-tooth count and 12.875-inch outside diameter before installation.
• Confirm the vehicle uses a one-piece crank seal engine.
• Inspect the torque converter, starter drive, and mounting surfaces during replacement.
• Check bolt-hole alignment and ring gear engagement before final assembly.
• Use the vehicle-specific service procedure for torque specifications and fastener sequence.

Quality Assurance

ATP Parts manufactures this flexplate from high-quality steel with OE-style dimensions, correct tooth spacing, and proper mounting geometry for long-term service in the listed applications. Part number Z-165 is built for direct replacement use in compatible GM automatic transmission setups.