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138051400 | PPE Performance 9.5 Inch - 12 Bolt Heavy Duty Cast Aluminum Rear Differential Cover For GM Trucks | Raw Finish

For 2019-2026 Chevrolet Silverado 1500 / 2019-2026 GMC Sierra 1500

138051400
Pricing: $352.79
Qty:
Free Ground Shipping | Exclusions Apply*

Description

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 0.57 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 SU8 only. Not compatible with AAM 9.5" rear axles with build code SU7, if you have a SU7 see 138051200 for a compatible diff cover.

OEM P/N REFERENCE: GM 85586188 (REPLACES 23243722, 84553988)

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 0.57 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 high-strength, high-temperature-rated neodymium magnets and Viton O-rings

Application List

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 4.3L V6 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 4.3L V6 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 4.3L V6 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

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Shipping Information

  • Item Requires Shipping
  • 7.8 lbs.
  • W12.7500” x H5.5000” x L14.5000”
  • Free Ground Shipping | Exclusions Apply*

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