aFe POWER Street Series Rear Differential Cover Raw with Machined Fins (46-71490A) - 2023-2026 Ford F-250/F-350 Sterling 11.6
Upgrade the rear axle on your 2023-2026 Ford F-250 or F-350 Super Duty with the aFe POWER Street Series Rear Differential Cover. Designed for Sterling 11.6 rear axles, this high-strength A356 cast aluminum cover adds approximately 1.46 quarts of fluid capacity over stock while using integrated internal and external fins to help manage differential temperatures during towing, hauling, and other demanding use.
The raw aluminum finish with machined fins provides added cooling surface area and a clean performance appearance. A neodymium magnetic drain plug helps capture loose metallic particles, while the integrated oil-level plug helps prevent overfilling and simplifies proper axle servicing.
Features
- Designed specifically for Sterling 11.6 rear axles
- Constructed from high-strength A356 cast aluminum
- Raw aluminum finish with machined fins
- Adds approximately 1.46 quarts of fluid capacity over stock
- Integrated internal and external fins help transfer heat from the differential fluid
- Neodymium magnetic drain plug helps capture loose metallic particles
- Precisely positioned oil-level plug helps prevent overfilling
- Oil-level plug helps eliminate guesswork during axle servicing
- Includes high-quality stainless-steel installation hardware
- Designed for towing, hauling, and demanding drivetrain use
- No CARB EO number required
Increased Fluid Capacity
The Street Series cover adds approximately 1.46 quarts of fluid capacity over the factory cover. The additional capacity helps support lubrication and temperature management during extended operation and demanding driving conditions.
Built-In Cooling Fins
Integrated internal and external fins increase available surface area and help transfer heat from the differential fluid to the surrounding air. This design supports improved thermal management without adding external cooling components.
Magnetic Drain Plug
A neodymium magnetic drain plug helps capture loose metallic particles suspended in the differential fluid, providing an additional layer of protection for internal axle components.
Oil-Level Plug
The precisely positioned oil-level plug helps prevent accidental overfilling and provides a simple reference point when servicing the rear axle.
Specifications
- Product Type: Rear Differential Cover
- Series: Street Series
- Axle Compatibility: Sterling 11.6 Rear Axle
- Material: A356 Cast Aluminum
- Finish: Raw Aluminum
- Finishing Detail: Machined Fins
- Additional Fluid Capacity: Approximately 1.46 Quarts Over Stock
- Drain Plug: Neodymium Magnetic
- Oil-Level Plug: Included
- Hardware: Stainless Steel
- Part Number: 46-71490A
Optional Upgrades
- aFe POWER PRO Series Deep-Reach Magnetic Fill Plug - Part Number 46-00003
- aFe POWER Oil Level Sight Glass - Part Number 46-00001
Fitment
- 2023 Ford F-250 Super Duty 6.7L Power Stroke Diesel with Sterling 11.6 Rear Axle
- 2023 Ford F-250 Super Duty 7.3L Gas V8 with Sterling 11.6 Rear Axle
- 2023 Ford F-350 Super Duty 6.7L Power Stroke Diesel with Sterling 11.6 Rear Axle
- 2023 Ford F-350 Super Duty 7.3L Gas V8 with Sterling 11.6 Rear Axle
- 2024 Ford F-250 Super Duty 6.7L Power Stroke Diesel with Sterling 11.6 Rear Axle
- 2024 Ford F-250 Super Duty 7.3L Gas V8 with Sterling 11.6 Rear Axle
- 2024 Ford F-350 Super Duty 6.7L Power Stroke Diesel with Sterling 11.6 Rear Axle
- 2024 Ford F-350 Super Duty 7.3L Gas V8 with Sterling 11.6 Rear Axle
- 2025 Ford F-250 Super Duty 6.7L Power Stroke Diesel with Sterling 11.6 Rear Axle
- 2025 Ford F-250 Super Duty 7.3L Gas V8 with Sterling 11.6 Rear Axle
- 2025 Ford F-350 Super Duty 6.7L Power Stroke Diesel with Sterling 11.6 Rear Axle
- 2025 Ford F-350 Super Duty 7.3L Gas V8 with Sterling 11.6 Rear Axle
- 2026 Ford F-250 Super Duty 6.7L Power Stroke Diesel with Sterling 11.6 Rear Axle
- 2026 Ford F-250 Super Duty 7.3L Gas V8 with Sterling 11.6 Rear Axle
- 2026 Ford F-350 Super Duty 6.7L Power Stroke Diesel with Sterling 11.6 Rear Axle
- 2026 Ford F-350 Super Duty 7.3L Gas V8 with Sterling 11.6 Rear Axle
Additional Notes
- Fits Sterling 11.6 rear axles only.
- Stainless-steel installation hardware is included.
- This product does not require a CARB EO number.
- Verify rear axle type before ordering.
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