2020-2024 Duramax 11.5"/12-14 Rear Differential Cover (138053000)

Fits

Keep your rear diff looking clean & running cool; PPE's HD A356.0-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.

Part Number: 138053000

GM OEM Part Number: 84757353

• High-grade A356.0-T6 heat treated cast aluminum alloy
• Increases oil capacity by 1.43 quarts
• Compatible with both the 11.5” or 12” rear axle
• Designed with specially engineered internal ribs to minimize friction and maximize lubrication
• Durable, heat-treated cast A356.0-T6 aluminum for optimum heat dissipation
• Significant reduction in differential fluid temperatures
• Adds additional strength to the gear housing
• High-power Neodymium magnet equipped, billet 304 stainless steel fill plug
• 1/8" stainless steel NPT port for optional temperature probe