PPE 138053020 11.5in/12in - 14 Heavy Duty Cast Aluminum Rear Diff Cover - Black | 2020-2025 Silverado/Sierra 2500HD/3500HD 6.6L

Features:

• 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-inch stainless steel NPT port for optional temperature probe
• Limited lifetime warranty

Impressive Strength & Cooling Capacity

Crafted for reduced friction and enhanced lubrication efficiency, ensure your GM rear differential stays cool and clean with an upgraded cover from PPE. Constructed from high-quality cast A356.0-T6 aluminum, it offers exceptional strength and superior heat dissipation capabilities. Couple this with PPE's exclusive fill plug which features a high-power Neodymium magnet that pulls harmful metal particles away from the gears before they do damage.

Increases Fluid Capacity and Cooling Fins

PPEs Heavy Duty Cast Aluminum Rear Diff Cover Increased fluid capacity provides increased thermal stamina. This new cover is equipped with specially designed internal heat sinks and external cooling fins which increase the pan’s surface area helping dissipate heat. This keeps your differential oil running cooler, the oil will keep its viscosity which helps extend differential service life.

Fits: 2020, 2021, 2022, 2023, 2024, 2025 GM 6.6L Duramax