aFe Pro Series 9.5 Rear Differential Cover

2019–2020 GM Silverado / Sierra 1500 9.5" Rear Axle

Part #: 46-71140R

Overview

The aFe Pro Series 9.5 Rear Differential Cover is designed to enhance the durability and cooling performance of your GM Silverado or Sierra 1500's rear axle. Crafted from high-quality cast aluminum, this cover offers a robust solution for enthusiasts seeking improved gear protection and thermal management. Whether you're a daily driver, off-road adventurer, or performance enthusiast, this differential cover provides the peace of mind that comes with superior construction and increased oil capacity.

With its precision-machined fins and large oil level sight glass, this cover not only helps dissipate heat more effectively but also allows for easy monitoring of gear oil levels. The integrated calibration plug ensures accurate oil level adjustments, preventing overfilling and maintaining optimal lubrication conditions. Its durable red powder coat finish adds corrosion resistance and a sleek appearance to your vehicle's undercarriage.

Key Features

The aFe Pro Series Differential Cover incorporates several advanced features designed to improve your vehicle's performance and longevity:

• All-aluminum construction enhances strength while reducing weight, contributing to better heat dissipation and durability.
• Cast in fins increase surface area for improved cooling, helping to maintain optimal operating temperatures during demanding driving conditions.
• Large oil capacity provides additional lubrication volume, supporting increased gear protection under high-stress scenarios.
• Dual Neodymium magnetic plugs attract and hold metal particles, helping to keep the gear oil clean and extend service intervals.
• Large oil level sight glass allows for quick and easy inspection of gear oil levels without removing the cover.
• Calibration plug set ensures precise oil level adjustments, preventing overfilling and ensuring proper lubrication.
• Finished with a durable red powder coat that resists corrosion and adds a stylish touch to your axle assembly.
• Designed specifically to fit GM 9.5" rear axles on Silverado and Sierra 1500 models from 2019 to 2020.

Construction & Design

The differential cover is constructed from high-strength cast aluminum, chosen for its excellent balance of strength, weight savings, and thermal conductivity. The cast-in fins are engineered to maximize surface area, promoting rapid heat dissipation during extended or aggressive driving. The large oil capacity not only improves lubrication but also helps maintain consistent operating temperatures, reducing the risk of overheating and gear wear.

The inclusion of dual Neodymium magnetic plugs is a thoughtful feature that captures metal shavings and debris, preventing them from circulating within the differential and causing damage. The sight glass provides a clear view of the oil level at a glance, simplifying maintenance routines. The red powder coat finish offers excellent corrosion resistance, ensuring long-lasting performance even in harsh environments.

Installation & Fitment

The aFe Pro Series 9.5 Differential Cover is a direct bolt-on replacement for the factory cover on GM Silverado and Sierra 1500 models equipped with the 9.5" rear axle from 2019 to 2020. Installation is straightforward and typically requires basic hand tools. No cutting, drilling, or modifications are necessary, and the cover is designed to fit precisely with OEM mounting points. It is recommended to drain the existing gear oil before installation and inspect the magnetic plugs for debris during service intervals.

• Simple bolt-on installation with standard hand tools
• No cutting or drilling required
• Includes all necessary hardware and gaskets for a secure fit

What's Included

• Pro Series 9.5 Differential Cover
• Dual Neodymium Magnetic Plugs
• Oil level sight glass
• Calibration plug
• Hardware and gasket for installation

Ideal For

• Off-road enthusiasts seeking improved gear protection and cooling
• Performance drivers aiming to extend differential lifespan under demanding conditions
• Daily drivers looking for a durable, corrosion-resistant upgrade