2014-2025 GM 1500 AAM 9.5″/9.76″-12-Bolt Heavy-Duty Cast Aluminum Rear Differential Cover – Brushed
PART NUMBER: 138051210
GTIN: 840171219166
OEM P/N REFERENCE: GM 22951487, 25824253, 84446288
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 .6 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
- Delivery & Return
Delivery
Store delivery FREE
1-3 working days
Returns
Return
We will accept exchanges and returns of unworn and unwashed garments within 30 days of the date of purchase (14 days during the sales period).
Returns in store FREE
Your return will usually be processed within a week to a week and a half. We’ll send you a Return Notification email to notify you once the return has been completed.
Please allow 1-3 business days for refunds to be received to the original form of payment once the return has been processed. - Ask a Question
279.99$
Description
Heavy-Duty Cast Aluminum Rear Differential Cover
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, the PPE differential cover adds .6 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.
Note: for build code SU7 only. Not compatible with GM 9.5″ rear axles with build code SU8. For SU8 applications, see SKU 1380514 GM 9.5” -12 Rear Differential Cover.
Compatible Vehicles
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 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 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 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 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 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 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 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 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 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
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