aFe Street Series Rear Diff Cover

2020–2025 Jeep Gladiator 3.6L V6

Part #: 46-71190A

Overview

The aFe Street Series Rear Differential Cover is engineered specifically for the Dana M220 rear axles found in 2020 to 2025 Jeep Gladiator models equipped with the 3.6L V6 engine. Designed to enhance durability and cooling efficiency, this raw finish cover features machined fins that improve heat dissipation, helping to maintain optimal differential temperatures during demanding driving conditions. Ideal for Jeep Gladiator owners seeking to upgrade their rear differential protection and performance, this cover offers increased oil capacity and advanced features to extend the life of your drivetrain components.

Whether you’re tackling off-road trails or cruising on the street, the aFe Street Series Rear Diff Cover provides superior protection and cooling to keep your rear differential running smoothly and reliably.

Key Features

This rear differential cover combines thoughtful engineering with durable materials to deliver enhanced performance and protection:

• Constructed from durable cast aluminum for long-lasting strength and corrosion resistance
• Raw finish with precision-machined internal and external fins to maximize heat transfer and cooling
• Increased oil capacity compared to stock covers, allowing for better lubrication and extended component life
• Neodymium magnetic drain plug captures metal particles to protect gears and bearings from wear
• Calibration plug preset to factory oil level prevents overfilling and ensures proper fluid volume
• Includes sway bar spacers for proper fitment and alignment
• Designed exclusively for Dana M220 rear axles found in Jeep Gladiator 3.6L V6 (2020–2025)
• Optional accessories available: deep reach magnetic fill plug (PN: 46-00002) and oil level sight glass (PN: 46-00001)

Construction & Design

The aFe Street Series Rear Diff Cover is crafted from high-quality cast aluminum, providing a robust and lightweight solution that resists corrosion and mechanical damage. Its raw finish highlights the precision-machined fins on both the interior and exterior surfaces, which significantly improve heat dissipation by transferring heat from the differential oil to the surrounding air. This design helps maintain lower operating temperatures, reducing the risk of overheating during heavy use or extended off-road excursions.

The inclusion of a neodymium magnetic drain plug is a critical design feature that captures metal shavings and debris circulating in the gear oil, preventing premature wear of internal components. Additionally, the calibration plug is factory-set to the correct oil level, ensuring the differential is neither overfilled nor underfilled, which can compromise performance and reliability.

Installation & Fitment

Installation of the aFe Street Series Rear Differential Cover is straightforward and designed to be a direct bolt-on replacement for the factory cover on Jeep Gladiator models equipped with the Dana M220 rear axle. No modifications are required, and the included sway bar spacers ensure proper alignment and fitment. This cover is engineered to maintain factory oil capacity calibration while providing enhanced cooling and protection.

For best results, it is recommended to drain and replace the differential fluid during installation to take full advantage of the increased oil capacity and improved cooling capabilities.

What's Included

• aFe Street Series Rear Differential Cover (Raw Finish with Machined Fins)
• Neodymium Magnetic Drain Plug
• Calibration Plug Set to Factory Oil Level
• Sway Bar Spacers

Ideal For

This rear differential cover is ideal for Jeep Gladiator 3.6L V6 owners who demand enhanced durability and cooling performance from their drivetrain components. It is especially suited for enthusiasts who frequently engage in off-road driving, towing, or heavy-duty street use where differential temperatures can rise significantly. The aFe Street Series Rear Diff Cover offers peace of mind by protecting critical gears and bearings while improving overall differential longevity.

aFe POWER (Advanced FLOW Engineering) offers dyno-proven intake, filtration, and exhaust upgrades aimed at measurable performance gains. The brand’s lineup is geared toward enthusiasts looking for better airflow, improved sound, and durable materials—from cold air intakes to stainless exhaust systems for street and track applications.