aFe 46-70272 Pro Series Rear Differential Cover for Dodge/RAM 1500 9.25in

Vehicle Fitment

• 2009-2013 Dodge RAM 1500 (V8-4.7L)
• 2014-2018 RAM 1500 EcoDiesel (V6-3.0L)
• 2009-2024 RAM 1500 (V8-5.7L HEMI)
• Broader legacy compatibility reported by some retailers back to 1994, and forward through 2022 on EcoDiesel - see Fitment Notes

Fitment Notes

• Fitment is ultimately determined by axle type - the Dodge/RAM Corporate 9.25" 12-bolt rear differential - rather than year alone. This axle was used across a long production span, which is why published year ranges vary by retailer (some list 1994-2018, others 2014-2022 for EcoDiesel specifically)
• Confirm your truck has the 9.25" 12-bolt Corporate rear axle before ordering - RAM 1500 also used other rear axle types depending on trim, engine, and drivetrain configuration
• Does not require a CARB EO#

Features

• Durable A356 cast aluminum construction with reinforced ribs for maximum strength
• Built-in external fins transfer heat from the differential fluid to the outside air for improved cooling
• Magnetic drain and fill plugs capture loose metal particles for added rear-end protection
• Large oil level sight glass with 1/8" NPT calibration plug set to the factory fluid level, preventing overfilling
• Wrinkle black powder-coated finish with machined fins for a durable, finished appearance
• All necessary hardware included for a straightforward installation - no drilling or modification required

Specifications

• Material: A356 cast aluminum
• Finish: Wrinkle black powder coat with machined fins
• Fluid Capacity: Approximately 4 quarts at factory fluid level
• Axle Compatibility: Dodge/RAM Corporate 9.25"-12 bolt rear differential

Included Components

• 1x Pro Series Rear Differential Cover
• Magnetic Drain Plug
• Magnetic Fill Plug
• Installation Hardware

Product Description

The aFe 46-70272 is a Pro Series rear differential cover engineered for RAM 1500 trucks running the Corporate 9.25" 12-bolt rear axle - confirmed across 2009-2013 4.7L, 2014-2018 EcoDiesel 3.0L, and 2009-2024 5.7L HEMI models, with some retailers reporting compatibility across an even longer span given how widely this axle was used. Built from A356 cast aluminum with reinforced ribs, it's designed to outlast the stamped-steel factory cover under towing and hauling loads.

Machined external fins increase surface area to dissipate heat from the differential fluid more effectively, helping keep gear temperatures in check during sustained heavy loads. Magnetic drain and fill plugs capture metal particles a standard plug would miss, while the large sight glass with a calibrated 1/8" NPT plug makes checking fluid level simple and helps prevent overfilling during service.

This cover suits RAM 1500 owners with the Corporate 9.25" 12-bolt rear axle who want added protection, better cooling, and easier fluid maintenance. Because RAM 1500s spanned several rear axle types over the years, confirming your specific axle - not just your model year - is the most reliable way to verify fitment before ordering.