2001-2019 Duramax/Cummins 5.9L/6.7L/LB7/LLY/LBZ/LMM/LML/L5P PPE Cast Aluminum Rear Differential Cover (238051000)
Keep your rear diff looking clean & running cool; PPE's HDA356.0-T6 cast aluminum rear differential cover; featuring thermal heat sinks & external cooling fins, this keeps your differential oil running within its ideal viscosity range, helping extend differential service life.
- Premium A356.0-T6 heat-treated cast aluminum alloy – a high-strength, thermally conductive material
- Precision-cast using permanent steel molds for a smooth, consistent finish and high dimensional accuracy
- Increases oil capacity by .63 quart for higher thermal capacity
- Half-inch external fins improve heat dissipation, lower differential fluid temperature, and increase impact resistance
- Precision-placed internal windage scrapers prevent excessive churning, reducing heat generation, fluid aeration, and power loss
- External fins and internal scrapers work together to form an ultra-strong Cross-Bracing structure
- Cast-in gussets for additional differential housing flange support and increased rigidity
- 304 Stainless steel service plugs with built-in high temperature rated neodymium magnets and Viton O-rings
Year Make Model Size 2001-2019 GMC/Chevrolet Duramax 11.5"-14 2001-2019 Dodge Ram Cummins 11.5"-14
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