aFe 46-71320B Pro Series Rear Diff Cover Black Ford 9.75 12-Bolt 1997-2023 F-150

Vehicle Fitment

• 1997-2023 Ford F-150 (All Trims, All Engines - Equipped with Ford 9.75-inch 12-Bolt Rear Axle Only)
• 2017-2023 Ford F-150 Raptor (Gen 2/Gen 3 - V6-3.5L EcoBoost - Ford 9.75 Rear Axle Only)
• 2018-2021 Ford F-150 (3.0L Powerstroke Diesel - Ford 9.75 Rear Axle Only)

Fitment Notes

• Fits Ford 9.75-inch 12-bolt rear axle only - some F-150 models use other rear axle sizes (8.8, Super 8.8). Verify your specific axle type before ordering.
• High clearance design engineered to clear the factory rear track bar on 2018-2023 F-150 models where earlier covers (including 46-70152) may interfere. Compatible with all F-150 models equipped with a factory rear track bar.
• Not tested on 1999-2004 Ford F-150 Lightning models or models equipped with a rear sway bar - fitment cannot be guaranteed on these applications.
• Gasket/O-ring and all necessary mounting hardware included.
• Does not require a CARB EO number.

Features

• High clearance housing design provides factory track bar compatibility - critical for 2018+ F-150 applications where standard 9.75" covers will not clear
• Built-in external machined aluminum fins dissipate heat from the differential fluid to surrounding air for passive cooling
• Large neodymium magnetic drain plug captures fine metallic wear particles before they circulate through gears and bearings
• Deep-reach magnetic fill plug for maximum particle capture during fluid fill
• Pre-installed large oil level sight glass with 1/8" NPT calibration plug set to the factory fluid level - eliminates overfilling and allows quick visual inspection
• Die-cast aluminum construction with reinforced internal ribs for maximum structural strength
• Black powder-coat finish with machined fins for a clean, purposeful underbody appearance
• Direct bolt-in using factory rear differential housing mounting locations

Specifications

• Axle Compatibility: Ford 9.75-inch, 12-Bolt Rear Differential
• Cover Material: Die-Cast Aluminum with Reinforced Ribs
• Finish: Black Powder Coat with Machined Fins
• Drain Plug: Large Neodymium Magnetic
• Fill Plug: Deep-Reach Neodymium Magnetic
• Oil Level Sight Glass: Large, Pre-Installed, 1/8" NPT Calibration Plug (Factory Level)
• Track Bar Clearance: Yes - High Clearance Design
• Bolt Pattern: 12-Bolt
• Shipping Weight: 6.9 lbs
• Emissions: No CARB EO Required
• UPC: 802959468999

Included Components

• 1x aFe Pro Series Rear Differential Cover - Black w/ Machined Fins (46-71320B)
• 1x Large Neodymium Magnetic Drain Plug
• 1x Deep-Reach Neodymium Magnetic Fill Plug
• 1x Oil Level Sight Glass with Calibration Plug (Pre-Installed)
• 1x O-Ring / Gasket
• 1x Complete Mounting Hardware Kit

Product Description

The aFe 46-71320B Pro Series Rear Differential Cover is the updated high-clearance variant of aFe's 9.75" F-150 rear diff cover, engineered specifically to accommodate the factory rear track bar found on 2018-2023 Ford F-150 models. On these later-generation trucks, standard 9.75" covers - including aFe's own 46-70152 - can conflict with the rear track bar mounting, making the 46-71320B the correct choice for 2018+ applications. It also fits 1997-2017 F-150 models on the 9.75" axle, and the 2017-2023 Raptor.

Built from die-cast aluminum with reinforced ribs, the cover features external machined cooling fins, dual neodymium magnetic plugs (drain and deep-reach fill), and a pre-installed oil level sight glass with 1/8" NPT calibration plug set to the factory fluid level. All critical maintenance tasks - draining, filling, and level inspection - are handled without removing the cover. Note: fitment on 1999-2004 F-150 Lightning models or trucks with a rear sway bar has not been confirmed; verify before ordering.