ATP Parts Z-136 Automatic Transmission Flexplate

ATP Parts Z-136 Flexplate for GM Trucks and Vans

The ATP Parts Z-136 is an automatic transmission flexplate built for vehicles that use a torque converter and starter ring gear engagement. It matches the original bolt pattern, tooth count, and diameter needed for proper engine-to-transmission connection in a wide range of Chevrolet and GMC applications, including Hummer H1, Express, Savana, C/K trucks, Suburban, Tahoe, Yukon, and P-series models.

• Automatic transmission flexplate for engine-to-transmission connection
• 14.125 in. outside diameter
• 139 teeth for starter engagement
• 11.5 in. torque converter mounting hole spread
• Weight-added design
• High-quality steel construction
• OE-style bolt hole spacing and ring gear tooth layout

Detailed Product Overview

ATP Parts Z-136 is engineered as a direct replacement flexplate for GM automatic transmission applications that require a 14.125-inch outside diameter, 139 teeth, and an 11.5-inch torque converter mounting hole spread. The steel construction is made to handle repeated expansion and contraction during engine operation while maintaining the correct starter ring gear engagement and converter mounting geometry. This part number is commonly searched as an automatic transmission flexplate for 2002-2003 Hummer H1, 2000-2002 Chevrolet Express 2500, and 1996-2002 GMC Savana 3500 applications.

This part cross-references Pioneer Automotive Industries FRA-142 and Standard Ignition V511 for the same application. ATP Parts Z-136 is also a fit for many Chevrolet and GMC full-size truck and van platforms where the original flexplate uses the same tooth count and converter bolt spacing.

What This Flexplate Helps Address

• Cracked flexplate from age, fatigue, or repeated flexing
• Sheared or damaged ring gear teeth that affect starter engagement
• Torque converter mounting issues caused by incorrect bolt spacing
• Noise or drivability problems related to a damaged flexplate
• Replacement needs after flexplate failure that cannot be repaired

Installation Notes and Fitment Tips

Verify the torque converter mounting hole spread, tooth count, and outside diameter before installation. This flexplate is listed for a broad range of Chevrolet and GMC vehicles, including 1982-2000 C/K trucks, 1987-1999 R/V platform models, 1994-1999 Suburban and Yukon applications, and 1996-2002 Express and Savana vans. Fits 2002-2003 Hummer H1, 2000-2002 Chevrolet Express 2500, 1996-2002 Chevrolet Express 3500, 1996-2002 GMC Savana 3500, and many additional GM truck and van applications shown in the fitment data. Confirm the correct application by matching the original flexplate dimensions and converter bolt pattern before assembly.

Quality Assurance

ATP Parts builds this flexplate from high-quality steel with the correct bolt hole spacing and ring gear teeth to match the original part specification. The weight-added design and OE-style dimensions support proper fitment in the listed Chevrolet, GMC, and Hummer applications.