ATP Parts Z-498 Automatic Transmission Flexplate

ATP Parts Z-498 Flexplate Overview

ATP Parts Z-498 is an automatic transmission flexplate built for GM and related applications that use a 168-tooth ring gear and an internally balanced engine. It connects the engine to the torque converter and provides the starter ring gear engagement needed for reliable cranking.

When a flexplate cracks or shears, it can create serious drivetrain damage. This replacement flexplate is made from high-quality steel and matches the original bolt-hole spacing and ring gear tooth pattern for a direct-fit repair.

Key Features

• Automatic transmission flexplate for engine-to-transmission connection
• 168 teeth for starter engagement
• 14.125 in. outside diameter
• 1.177 in. center diameter
• 14 pitch flywheel specification
• High-quality steel construction for durability
• Correct bolt-hole spacing and ring gear layout to match OE fitment
• Part number Z-498 for easy identification

Detailed Description

This ATP Parts flexplate is engineered for vehicles with automatic transmissions that require a 168-tooth, 14.125-inch flexplate. It is listed for a wide range of GM trucks, SUVs, and performance models, including Chevrolet Silverado 1500, Tahoe, Camaro, and GMC Sierra 1500 applications. If you are replacing a damaged flexplate on a Cadillac Escalade, Chevrolet Avalanche, or GMC Yukon, Z-498 provides the correct OE-style dimensions and tooth count for the application.

This part cross-references Pioneer Automotive Industries FRA-471HD for the same application.

What It Helps Fix

• Cracked flexplate from repeated engine RPM expansion and contraction
• Sheared or damaged ring gear teeth that affect starter engagement
• Torque converter mounting issues caused by worn bolt holes
• Noise or vibration related to a failing flexplate
• Drivetrain damage from continued use of a broken flexplate

Installation Notes and Tips

Verify engine balance, tooth count, outside diameter, and bolt-circle dimensions before installation. This application is for internally balanced engines and vehicles listed with a 168-tooth flexplate. Inspect the torque converter, starter, and mounting hardware condition during replacement so the new flexplate is not installed against worn components.

Fits 1998-2002 Chevrolet Camaro, N/A; Fits 1999-2013 Chevrolet Silverado 1500, N/A; Fits 2001-2013 Chevrolet Tahoe, N/A; Fits 2002-2006 Cadillac Escalade, N/A; Fits 2007-2013 GMC Sierra 1500, N/A.

Quality Assurance

ATP Parts manufactures this flexplate from high-quality steel with OE-style bolt-hole spacing and ring gear teeth to support long service life and dependable fitment. Part number Z-498 is built to match the original application requirements for the listed vehicles.