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Pioneer Cables 759019 Automatic Transmission Extension Housing SealOE Quality 60-Day Returns
Part #: 759019

Pioneer Cables 759019 Automatic Transmission Extension Housing Seal

71 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet and GMC, Sierra 2500 HD, Sierra 3500, Sierra 3500 Classic, Sierra 3500 HD, Silverado 2500 HD, Silverado 3500, Silverado 3500 Classic, and Silverado 3500 HD
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Not what you need? See all Automatic Transmission Extension Housing Seal options

Automatic Transmission Extension Housing Seal for GM HD Trucks

Pioneer Cables 759019 is an automatic transmission extension housing seal made for direct-fit replacement on select Chevrolet and GMC heavy-duty trucks. It is built for the 2001-2009 Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD, plus 3500-series applications including Silverado 3500, Silverado 3500 HD, Sierra 3500, Sierra 3500 HD, Silverado 3500 Classic, and Sierra 3500 Classic.

Key Features

  • Automatic transmission extension housing seal for rear transmission sealing service
  • Exact-fit replacement from Pioneer Transmission Components
  • Fits select Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD applications
  • Fits select Chevrolet Silverado 3500, Silverado 3500 HD, and Silverado 3500 Classic applications
  • Fits select GMC Sierra 3500, Sierra 3500 HD, and Sierra 3500 Classic applications
  • Cross-references National 415988 and SKF 25661 for the same application

Detailed Description

This Pioneer Cables 759019 transmission extension housing seal is a replacement part for GM heavy-duty trucks that need a precise rear transmission seal. It is listed for 2001-2009 Chevrolet Silverado 2500 HD, 2007-2009 Chevrolet Silverado 3500 HD, 2001-2009 GMC Sierra 2500 HD, 2007-2009 GMC Sierra 3500 HD, 2007 Chevrolet Silverado 3500 Classic, 2007 GMC Sierra 3500 Classic, 2001-2006 Chevrolet Silverado 3500, and 2001-2006 GMC Sierra 3500. If you are searching for a transmission extension housing seal for Chevrolet Silverado 2500 HD or GMC Sierra 3500 service, part number 759019 is the direct reference to use.

Common Repair Uses

  • Rear transmission fluid seepage at the extension housing
  • Seal wear from age, heat, and mileage
  • Service work during transmission tail housing repair
  • Leak correction after driveline or transmission maintenance

Installation Notes and Tips

Confirm the transmission application and housing style before installation. Clean the sealing surface thoroughly, inspect the extension housing for wear or damage, and replace the seal only after the mating surfaces are ready for assembly. Verify fitment by vehicle year, make, and model before ordering.

Quality Assurance

Pioneer Transmission Components markets this part as an exact-fit replacement component, built to match the original application without compromise.

This part fits 71 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2009ChevroletSilverado 2500 HDN/A
2009ChevroletSilverado 3500 HDN/A
2009GMCSierra 2500 HDN/A
2009GMCSierra 3500 HDN/A
2008ChevroletSilverado 2500 HDN/A
2008ChevroletSilverado 3500 HDN/A
2008GMCSierra 2500 HDN/A
2008GMCSierra 3500 HDN/A
2007ChevroletSilverado 2500 HDN/A
2007ChevroletSilverado 3500 ClassicN/A
2007ChevroletSilverado 3500 HDN/A
2007GMCSierra 2500 HDN/A
2007GMCSierra 3500 ClassicN/A
2007GMCSierra 3500 HDN/A
2006ChevroletSilverado 2500 HD8.1LV8N/A
2006ChevroletSilverado 2500 HD6.6LV8N/A
2006ChevroletSilverado 2500 HD6.0LV8N/A
2006ChevroletSilverado 35008.1LV8N/A
2006ChevroletSilverado 35006.6LV8N/A
2006ChevroletSilverado 35006.0LV8N/A
2006ChevroletSilverado 35005.7LV8N/A
2006GMCSierra 2500 HD8.1LV8N/A
2006GMCSierra 2500 HD6.6LV8N/A
2006GMCSierra 2500 HD6.0LV8N/A
2006GMCSierra 35008.1LV8N/A
2006GMCSierra 35006.6LV8N/A
2006GMCSierra 35006.0LV8N/A
2005ChevroletSilverado 2500 HD8.1LV8N/A
2005ChevroletSilverado 2500 HD6.6LV8N/A
2005ChevroletSilverado 2500 HD6.0LV8N/A
2005ChevroletSilverado 35008.1LV8N/A
2005ChevroletSilverado 35006.6LV8N/A
2005ChevroletSilverado 35006.0LV8N/A
2005GMCSierra 2500 HD8.1LV8N/A
2005GMCSierra 2500 HD6.6LV8N/A
2005GMCSierra 2500 HD6.0LV8N/A
2005GMCSierra 35008.1LV8N/A
2005GMCSierra 35006.6LV8N/A
2005GMCSierra 35006.0LV8N/A
2004ChevroletSilverado 2500 HD8.1LV8N/A
2004ChevroletSilverado 2500 HD6.6LV8N/A
2004ChevroletSilverado 2500 HD6.0LV8N/A
2004ChevroletSilverado 35008.1LV8N/A
2004ChevroletSilverado 35006.6LV8N/A
2004ChevroletSilverado 35006.0LV8N/A
2004GMCSierra 2500 HD8.1LV8N/A
2004GMCSierra 2500 HD6.6LV8N/A
2004GMCSierra 2500 HD6.0LV8N/A
2004GMCSierra 35008.1LV8N/A
2004GMCSierra 35006.6LV8N/A
2004GMCSierra 35006.0LV8N/A
2003ChevroletSilverado 2500 HD8.1LV8N/A
2003ChevroletSilverado 2500 HD6.6LV8N/A
2003ChevroletSilverado 2500 HD6.0LV8N/A
2003ChevroletSilverado 3500N/A
2003GMCSierra 2500 HD8.1LV8N/A
2003GMCSierra 2500 HD6.6LV8N/A
2003GMCSierra 2500 HD6.0LV8N/A
2003GMCSierra 3500N/A
2002ChevroletSilverado 2500 HD8.1LV8N/A
2002ChevroletSilverado 2500 HD6.6LV8N/A
2002ChevroletSilverado 2500 HD6.0LV8N/A
2002ChevroletSilverado 3500N/A
2002GMCSierra 2500 HD8.1LV8N/A
2002GMCSierra 2500 HD6.6LV8N/A
2002GMCSierra 2500 HD6.0LV8N/A
2002GMCSierra 3500N/A
2001ChevroletSilverado 2500 HDN/A
2001ChevroletSilverado 3500N/A
2001GMCSierra 2500 HDN/A
2001GMCSierra 3500N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

12107425661415988476026778050ML35SL75

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.