Pioneer Cables 749113 Automatic Transmission Valve Body Gasket

Automatic Transmission Valve Body Gasket for GM Applications

Pioneer Cables 749113 is an automatic transmission valve body gasket made for exact-fit replacement in a wide range of GM rear-wheel-drive applications. It is a direct service part for upper valve body sealing on many Chevrolet, GMC, Buick, Oldsmobile, Pontiac, and Cadillac models from 1980-1986.

Key Features

• Upper automatic transmission valve body gasket for service and rebuild work
• Exact-fit replacement from Pioneer Transmission Components
• Fits a broad range of Chevrolet C10, GMC Jimmy, Buick Regal, and Pontiac Grand Prix applications
• Direct replacement part number 749113 for transmission sealing repairs
• Built for common THM250C/M31, THM350, and THM350C applications where noted

Detailed Description

This Pioneer Cables 749113 gasket is used in the upper section of the automatic transmission valve body to help maintain proper fluid sealing during operation. It is listed across many GM cars and trucks, including Chevrolet C10, Chevrolet Monte Carlo, GMC C1500, Buick LeSabre, and Pontiac Bonneville models. For buyers searching by fitment, this part number 749113 is a direct reference for upper valve body gasket replacement on 1980-1986 GM vehicles.

Pioneer Transmission Components are made as exact-fit replacement parts, giving technicians and DIY rebuilders a service-ready option for transmission sealing repairs. If you are replacing a leaking or damaged valve body gasket during a transmission overhaul, this part supports the upper valve body sealing surface on the listed applications.

What It Helps Fix

• Transmission fluid leaks at the upper valve body
• Harsh or inconsistent shifting caused by internal sealing loss
• Contamination from a deteriorated gasket surface
• Service issues during valve body removal and reassembly
• Leak repair needs on GM THM250C/M31, THM350, and THM350C applications where listed

Installation Notes and Tips

Verify transmission type and model-specific notes before installation, especially on applications marked THM250C/M31, THM350, or THM350C. Clean all mating surfaces thoroughly, inspect the valve body for warpage or damage, and follow the factory service procedure for torque sequence and fluid refill. This part is listed as upper position only.

Quality Assurance

Pioneer Cables 749113 is backed by Pioneer Transmission Components’ exact-fit replacement approach, providing a direct-service gasket for the listed GM applications. This part cross-references no additional part numbers in the provided data.