Pioneer Cables 749288 Automatic Transmission Extension Housing Gasket

Automatic Transmission Extension Housing Gasket

Pioneer Cables 749288 is an automatic transmission extension housing gasket made for exact-fit replacement service. It is built for Chevrolet Silverado 2500 HD, Silverado 3500 HD, Silverado 3500 Classic, Silverado 3500, GMC Sierra 2500 HD, Sierra 3500 HD, Sierra 3500 Classic, and Sierra 3500 applications across the listed model years.

• Exact-fit replacement for automatic transmission extension housing service
• Fits 2001-2011 Chevrolet Silverado 2500 HD
• Fits 2007-2011 Chevrolet Silverado 3500 HD
• Fits 2001-2011 GMC Sierra 2500 HD
• Fits 2007-2011 GMC Sierra 3500 HD
• Fits 2007 Chevrolet Silverado 3500 Classic and GMC Sierra 3500 Classic
• Fits 2001-2006 Chevrolet Silverado 3500 and GMC Sierra 3500

Application Details

This Pioneer Cables 749288 gasket is used at the transmission extension housing to help maintain a proper seal between mating surfaces. It is a direct replacement for service on Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD trucks, as well as Silverado 3500 and Sierra 3500 models in the years shown.

• Transmission fluid seepage at the extension housing
• Seal failure after transmission service
• Leak repair at the rear of the automatic transmission
• Surface sealing during extension housing removal and reassembly

Installation Notes

Clean both mating surfaces before installation and inspect the housing for damage, warping, or old gasket material. Verify the transmission application against the vehicle year and model before assembly. Part number 749288 should be matched to the listed fitment for proper service.

Quality Assurance

Pioneer Transmission Components are positioned as exact-fit replacement parts for transmission repair work. Part number 749288 is built for the listed Chevrolet Silverado and GMC Sierra applications, and this part cross-references Monroe Shocks & Struts (e.g., 172286) for the same application.