
The Story
Fits: 2020 thru 2024 Chevy Silverado/GMC Sierra 2500HD/3500HD L5P Duramax Diesel
The Mag-Hytec AA 14-12.0 Differential Cover is designed to enhance the longevity of the gear lube in your 2020-2023 L5P Duramax. Crafted from high-grade aircraft aluminum, this cover features exterior fins that serve a dual purpose: adding a sleek aesthetic and functioning as heat sinks to efficiently dissipate heat. Complete with a bolt kit, magnetic drain plug, aluminum dipstick, and backed by a limited lifetime warranty, you can trust that this differential cover will endure for the entirety of your truck's lifespan.
Features:Ā
- 8 Quart CapacityĀ
- Overall height: 3 5/8ā³
- Finned housing constructed of aircraft aluminum
- Easy installation
- Easy non-removal cover maintenance
- Limited lifetime warranty for coverĀ
- 5-year warranty for O-ringsĀ
Includes:Ā
- Mag-Hytec Differential cover
- Bolt kitĀ
- Magnetic drain PlugĀ
- Dipstick
Notes:Ā
- Although there are only 12 bolt holes, this cover ensures proper fitment for your 14 bolt - 12.0" differential. This is because the top and bottom bolts have been utilized for the drain plug and temperature sending unit hole.Ā

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
Fits: 2020 thru 2024 Chevy Silverado/GMC Sierra 2500HD/3500HD L5P Duramax Diesel
The Mag-Hytec AA 14-12.0 Differential Cover is designed to enhance the longevity of the gear lube in your 2020-2023 L5P Duramax. Crafted from high-grade aircraft aluminum, this cover features exterior fins that serve a dual purpose: adding a sleek aesthetic and functioning as heat sinks to efficiently dissipate heat. Complete with a bolt kit, magnetic drain plug, aluminum dipstick, and backed by a limited lifetime warranty, you can trust that this differential cover will endure for the entirety of your truck's lifespan.
Features:Ā
- 8 Quart CapacityĀ
- Overall height: 3 5/8ā³
- Finned housing constructed of aircraft aluminum
- Easy installation
- Easy non-removal cover maintenance
- Limited lifetime warranty for coverĀ
- 5-year warranty for O-ringsĀ
Includes:Ā
- Mag-Hytec Differential cover
- Bolt kitĀ
- Magnetic drain PlugĀ
- Dipstick
Notes:Ā
- Although there are only 12 bolt holes, this cover ensures proper fitment for your 14 bolt - 12.0" differential. This is because the top and bottom bolts have been utilized for the drain plug and temperature sending unit hole.Ā

















