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PPE AAM 9.5"/9.76"-12-Bolt Heavy-Duty Cast Aluminum Rear Differential Cover for Chevy/GMC (2014-26) 1500 (Raw)

SKU: 138051200

Excessive heat can degrade the protective qualities of differential fluid, leading to accelerated wear of gears and bearings. In limited-slip differentials, constant high temperatures can break down clutch packs and friction modifiers, resulting in reduced efficiency and compromised traction control.

Cast from high-grade A356.0-T6 aluminum alloy, this flat back differential cover adds .75 quart of fluid capacity and features half-inch external cooling fins for long-lasting heat management and performance.

Built-in windage scrapers inside the PPE cover ensure precise fluid distribution around the gears. By reducing excessive fluid churning, these scrapers lower heat buildup and minimize parasitic loss, promoting more efficient power transfer. Together with the vertical external fins, they form a strong cross-bracing structure that improves load distribution and enhances impact resistance.

The fill plug is precisely positioned at the factory level. Both the fill and drain plugs feature a powerful, high-temperature-rated neodymium magnet that captures ferrous particles for added protection.

Note1: Only works with vehicles equipped with AAM 11.5”-14 axles.

Note2: Not compatible with RAM 2500/3500 with coil-spring rear suspension. See 2001-2019 GM, 2001-2018 RAM AAM 11.5"-14-Bolt Heavy-Duty Cast Aluminum Rear Differential Cover, p/n 238051000 for those applications.

OEM Part Number for Reference: GM 22951487, 25824253, 84446288

Pricing: $259.99

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Description

Features:
•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 .75 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

Fitment:
2026 GMC Sierra 1500 3.0L I6 Turbo Diesel (Duramax)
2026 Chevrolet Silverado 1500 3.0L I6 Turbo Diesel (Duramax)
2025 GMC Sierra 1500 6.2L V8 Gas
2025 GMC Sierra 1500 5.3L V8 Gas
2025 GMC Sierra 1500 3.0L I6 Turbo Diesel (Duramax)
2025 GMC Sierra 1500 2.7L I4 Turbo Gas
2025 Chevrolet Silverado 1500 6.2L V8 Gas
2025 Chevrolet Silverado 1500 5.3L V8 Gas
2025 Chevrolet Silverado 1500 3.0L I6 Turbo Diesel (Duramax)
2025 Chevrolet Silverado 1500 2.7L I4 Turbo Gas
2024 GMC Sierra 1500 6.2L V8 Gas
2024 GMC Sierra 1500 5.3L V8 Gas
2024 GMC Sierra 1500 3.0L I6 Turbo Diesel (Duramax)
2024 GMC Sierra 1500 2.7L I4 Turbo Gas
2024 Chevrolet Silverado 1500 6.2L V8 Gas
2024 Chevrolet Silverado 1500 5.3L V8 Gas
2024 Chevrolet Silverado 1500 3.0L I6 Turbo Diesel (Duramax)
2024 Chevrolet Silverado 1500 2.7L I4 Turbo Gas
2023 GMC Sierra 1500 6.2L V8 Gas
2023 GMC Sierra 1500 5.3L V8 Gas
2023 GMC Sierra 1500 3.0L I6 Turbo Diesel (Duramax)
2023 GMC Sierra 1500 2.7L I4 Turbo Gas
2023 Chevrolet Silverado 1500 6.2L V8 Gas
2023 Chevrolet Silverado 1500 5.3L V8 Gas
2023 Chevrolet Silverado 1500 3.0L I6 Turbo Diesel (Duramax)
2023 Chevrolet Silverado 1500 2.7L I4 Turbo Gas
2022 GMC Sierra 1500 6.2L V8 Gas
2022 GMC Sierra 1500 5.3L V8 Gas
2022 GMC Sierra 1500 3.0L I6 Turbo Diesel (Duramax)
2022 GMC Sierra 1500 2.7L I4 Turbo Gas
2022 Chevrolet Silverado 1500 6.2L V8 Gas
2022 Chevrolet Silverado 1500 5.3L V8 Gas
2022 Chevrolet Silverado 1500 3.0L I6 Turbo Diesel (Duramax)
2022 Chevrolet Silverado 1500 2.7L I4 Turbo Gas
2021 GMC Sierra 1500 6.2L V8 Gas
2021 GMC Sierra 1500 5.3L V8 Gas
2021 GMC Sierra 1500 3.0L I6 Turbo Diesel (Duramax)
2021 GMC Sierra 1500 2.7L I4 Turbo Gas
2021 Chevrolet Silverado 1500 6.2L V8 Gas
2021 Chevrolet Silverado 1500 5.3L V8 Gas
2021 Chevrolet Silverado 1500 4.3L V6 Gas
2021 Chevrolet Silverado 1500 3.0L I6 Turbo Diesel (Duramax)
2021 Chevrolet Silverado 1500 2.7L I4 Turbo Gas
2020 GMC Sierra 1500 6.2L V8 Gas
2020 GMC Sierra 1500 5.3L V8 Gas
2020 GMC Sierra 1500 3.0L I6 Turbo Diesel (Duramax)
2020 GMC Sierra 1500 2.7L I4 Turbo Gas
2020 Chevrolet Silverado 1500 6.2L V8 Gas
2020 Chevrolet Silverado 1500 5.3L V8 Gas
2020 Chevrolet Silverado 1500 4.3L V6 Gas
2020 Chevrolet Silverado 1500 3.0L I6 Turbo Diesel (Duramax)
2020 Chevrolet Silverado 1500 2.7L I4 Turbo Gas
2019 GMC Sierra 1500 6.2L V8 Gas
2019 GMC Sierra 1500 5.3L V8 Gas
2019 GMC Sierra 1500 2.7L I4 Turbo Gas
2019 Chevrolet Silverado 1500 6.2L V8 Gas
2019 Chevrolet Silverado 1500 5.3L V8 Gas
2019 Chevrolet Silverado 1500 4.3L V6 Gas
2019 Chevrolet Silverado 1500 2.7L I4 Turbo Gas
2018 GMC Sierra 1500 6.2L V8 Gas
2018 GMC Sierra 1500 5.3L V8 Gas
2018 Chevrolet Silverado 1500 6.2L V8 Gas
2018 Chevrolet Silverado 1500 5.3L V8 Gas
2018 Chevrolet Silverado 1500 4.3L V6 Gas
2017 GMC Sierra 1500 6.2L V8 Gas
2017 GMC Sierra 1500 5.3L V8 Gas
2017 Chevrolet Silverado 1500 6.2L V8 Gas
2017 Chevrolet Silverado 1500 5.3L V8 Gas
2017 Chevrolet Silverado 1500 4.3L V6 Gas
2016 GMC Sierra 1500 6.2L V8 Gas
2016 GMC Sierra 1500 5.3L V8 Gas
2016 Chevrolet Silverado 1500 6.2L V8 Gas
2016 Chevrolet Silverado 1500 5.3L V8 Gas
2016 Chevrolet Silverado 1500 4.3L V6 Gas
2015 GMC Sierra 1500 6.2L V8 Gas
2015 GMC Sierra 1500 5.3L V8 Gas
2015 Chevrolet Silverado 1500 6.2L V8 Gas
2015 Chevrolet Silverado 1500 5.3L V8 Gas
2015 Chevrolet Silverado 1500 4.3L V6 Gas
2014 GMC Sierra 1500 6.2L V8 Gas
2014 GMC Sierra 1500 5.3L V8 Gas
2014 Chevrolet Silverado 1500 6.2L V8 Gas
2014 Chevrolet Silverado 1500 5.3L V8 Gas
2014 Chevrolet Silverado 1500 4.3L V6 Gas