ATP Parts Z-339 Automatic Transmission Flexplate

ATP Parts Z-339 Flexplate for Jeep Automatic Transmissions

ATP Parts Z-339 is an automatic transmission flexplate built for Jeep applications that use a 164-tooth ring gear and a 6-bolt mounting pattern. It connects the engine and torque converter while providing the correct starter engagement and bolt spacing for the listed Cherokee, Grand Cherokee, and Comanche fitments.

Key Features

• Automatic transmission flexplate for engine-to-transmission connection
• 164 teeth for proper starter ring gear engagement
• 6 mounting holes with correct bolt spacing
• 13.813-inch outside diameter
• High-quality steel construction for durability
• Weight added design
• Direct replacement style for Jeep Cherokee, Grand Cherokee, and Comanche applications

Detailed Description

The ATP Parts Z-339 flexplate is engineered to match the original part’s critical dimensions, including the 164-tooth ring gear and 6-hole mounting layout. It is used in automatic transmission setups where the flexplate transfers rotational movement between the engine and torque converter while allowing for normal expansion as engine speed changes. This part cross-references Pioneer Automotive Industries FRA-480 for the same application. For Jeep Cherokee, Jeep Grand Cherokee, and Jeep Comanche vehicles, the correct tooth count and diameter are important for starter alignment and reliable drivetrain operation.

What This Part Helps Address

• Cracked flexplate material from repeated stress and flexing
• Sheared or damaged flexplate sections
• Starter engagement problems caused by worn ring gear teeth
• Torque converter mounting issues from incorrect bolt spacing
• Noise or drivability concerns related to a damaged flexplate

Installation Notes and Tips

Verify the vehicle’s transmission and flexplate specifications before installation. Confirm 164 teeth, 6 mounting holes, and the listed outside diameter match the original part. Inspect the torque converter, starter drive, and mounting surfaces for wear or damage before installing the new flexplate. Professional installation is recommended for Jeep Cherokee, Jeep Grand Cherokee, and Jeep Comanche automatic transmission service.

Quality Assurance

ATP Parts manufactures this flexplate from high-quality steel with OE-style bolt hole spacing and ring gear teeth to match the original application. The part is built for long-term durability in the listed Jeep automatic transmission fitments.