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Thumbnail Filmstrip of 2020-2023 6.6L L5P Duramax Pro Series Rear Differential Cover Black w/ Machined Fins AFE 46-71260B Images
The AFE 46-71260B Pro Series Rear Differential Cover is a critical upgrade for owners of 2020-2023 GM Silverado and Sierra 2500HD/3500HD trucks equipped with the L5P Duramax engine. Beyond its striking black powder-coated finish and machined fins, this cover is engineered to solve the thermal management issues inherent in heavy-duty towing and hauling. By replacing the stock stamped-steel unit with this high-quality cast aluminum component, you are investing in the longevity of your AAM 11.5 or AAM 12-inch axle. The design prioritizes both form and function, ensuring that your drivetrain remains protected under the most demanding conditions while adding a custom, performance-oriented aesthetic to your vehicle's undercarriage.
- Thermal Management: Features both internal and external cooling fins cast directly into the aluminum to dissipate heat more efficiently than factory covers, keeping gear oil temperatures stable.
- Fluid Maintenance: Equipped with a pre-installed oil level sight glass, allowing for instantaneous inspection of oil clarity and volume without the need to crack a seal.
- Contamination Control: Includes a magnetic drain plug and a deep-reach fill plug featuring neodymium magnets to capture and isolate metallic debris, preventing premature gear wear.
- Precision Filling: A dedicated calibration plug is set specifically to the factory oil level, effectively eliminating the risk of overfilling and subsequent seal failure.
- Extended Service Life: Increased oil capacity over the stock configuration provides better lubrication and performance over longer durations between service intervals.
- Durable Construction: Built from heavy-duty cast aluminum for superior impact resistance and finished with a rugged powder coat to prevent corrosion.
The integration of these features ensures that your rear differential operates within its optimal temperature range, which is vital for maintaining the viscosity of your gear lube and protecting the internal ring and pinion. AFE backs this Pro Series cover with a 2-year manufacturer warranty, providing peace of mind alongside tangible mechanical benefits. Whether you are navigating steep grades with a heavy trailer or seeking a more robust solution for your daily driver, this differential cover provides the technical edge required for modern heavy-duty performance. It is a comprehensive maintenance and styling solution that safeguards one of the most hardworking components of your Duramax drivetrain.
The AFE 46-71260B Pro Series Rear Differential Cover is a critical upgrade for owners of 2020-2023 GM Silverado and Sierra 2500HD/3500HD trucks equipped with the L5P Duramax engine. Beyond its striking black powder-coated finish and machined fins, this cover is engineered to solve the thermal management issues inherent in heavy-duty towing and hauling. By replacing the stock stamped-steel unit with this high-quality cast aluminum component, you are investing in the longevity of your AAM 11.5 or AAM 12-inch axle. The design prioritizes both form and function, ensuring that your drivetrain remains protected under the most demanding conditions while adding a custom, performance-oriented aesthetic to your vehicle's undercarriage.
Thermal Management: Features both internal and external cooling fins cast directly into the aluminum to dissipate heat more efficiently than factory covers, keeping gear oil temperatures stable.
Fluid Maintenance: Equipped with a pre-installed oil level sight glass, allowing for instantaneous inspection of oil clarity and volume without the need to crack a seal.
Contamination Control: Includes a magnetic drain plug and a deep-reach fill plug f[...]
The AFE 46-71260B Pro Series Rear Differential Cover is a critical upgrade for owners of 2020-2023 GM Silverado and Sierra 2500HD/3500HD trucks equipped with the L5P Duramax engine. Beyond its striking black powder-coated finish and machined fins, this cover is engineered to solve the thermal management issues inherent in heavy-duty towing and hauling. By replacing the stock stamped-steel unit with this high-quality cast aluminum component, you are investing in the longevity of your AAM 11.5 or AAM 12-inch axle. The design prioritizes both form and function, ensuring that your drivetrain remains protected under the most demanding conditions while adding a custom, performance-oriented aesthetic to your vehicle's undercarriage.
- Thermal Management: Features both internal and external cooling fins cast directly into the aluminum to dissipate heat more efficiently than factory covers, keeping gear oil temperatures stable.
- Fluid Maintenance: Equipped with a pre-installed oil level sight glass, allowing for instantaneous inspection of oil clarity and volume without the need to crack a seal.
- Contamination Control: Includes a magnetic drain plug and a deep-reach fill plug featuring neodymium magnets to capture and isolate metallic debris, preventing premature gear wear.
- Precision Filling: A dedicated calibration plug is set specifically to the factory oil level, effectively eliminating the risk of overfilling and subsequent seal failure.
- Extended Service Life: Increased oil capacity over the stock configuration provides better lubrication and performance over longer durations between service intervals.
- Durable Construction: Built from heavy-duty cast aluminum for superior impact resistance and finished with a rugged powder coat to prevent corrosion.
The integration of these features ensures that your rear differential operates within its optimal temperature range, which is vital for maintaining the viscosity of your gear lube and protecting the internal ring and pinion. AFE backs this Pro Series cover with a 2-year manufacturer warranty, providing peace of mind alongside tangible mechanical benefits. Whether you are navigating steep grades with a heavy trailer or seeking a more robust solution for your daily driver, this differential cover provides the technical edge required for modern heavy-duty performance. It is a comprehensive maintenance and styling solution that safeguards one of the most hardworking components of your Duramax drivetrain.