SKU #: AFE-46-71430A MPN #: 46-71430A

AFE Power Pro Series Front Differential Cover with Machined Fins 20-26 GM 3.0L Duramax LM2/LZO

$262.00

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aFe diff cover on GM truck showing black finish fins and full axle context

Raw cast aluminum aFe diff cover showing machined fins and heavy-duty body

Uncoated aluminum diff cover close-up highlighting internal and external fins

Bare aluminum GM AAM 8.0 IFS diff cover showing sight glass and calibration plug

Raw cast differential cover emphasizing thickness durability and fin design

Black aFe POWER diff cover with machined fins installed on GM truck axle

Black powder coat differential cover close-up showing fins and drain plug detail

Black GM AAM 8.0 IFS diff cover installed under truck for off-road protection

AFE Power Pro Series Differential Cover Black finned diff cover installed

AFE Power Pro Series Front Differential Cover with Machined Fins 20-26 GM 3.0L Duramax LM2/LZO

Description

The aFe POWER Pro Series Front Differential Cover is built to give your GM truck stronger protection, better cooling, and easier maintenance all in one simple upgrade. Constructed from durable cast aluminum with a black powder coat finish and machined fins, it’s designed to handle tough driving conditions while also adding a clean, aggressive look under your vehicle. It also reuses the factory gasket for a straightforward installation with all hardware included. What you’ll notice most is the improved performance and consistency under load. The built-in internal and external fins help transfer heat away from the gear oil, keeping temperatures lower for better long-term durability and smoother operation. It also increases oil capacity by approximately 1/2 quart over stock, helping maintain proper lubrication during towing, hauling, or off-road use. A magnetic drain plug captures metal debris to help protect internal components, while the sight glass and calibration plug make checking and filling fluid simple and accurate without guesswork. Overall, this differential cover is designed to improve reliability, reduce heat stress, and extend the life of your drivetrain while making maintenance easier and more precise. It’s a practical upgrade that delivers real-world benefits in durability, performance consistency, and long-term value, whether your truck is used for work, towing, or everyday driving!

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The aFe POWER Pro Series Front Differential Cover is built to give your GM truck stronger protection, better cooling, and easier maintenance all in one simple upgrade. Constructed from durable cast aluminum with a black powder coat finish and machined fins, it’s designed to handle tough driving conditions while also adding a clean, aggressive look under your vehicle. It also reuses the factory gasket for a straightforward installation with all hardware included.

What you’ll notice most is the improved performance and consistency under load. The built-in internal and external fins help transfer heat away from the gear oil, keeping temperatures lower for better long-term durability and smoother operation. It also increases oil capacity by approximately 1/2 quart over stock, helping maintain proper lubrication during towing, hauling, or off-road use. A magnetic drain plug captures metal debris to help protect internal components, while the sight glass and calibration plug make checking and filling fluid simple and accurate without guesswork.

Overall, this differential cover is designed to improve reliability, reduce heat stress, and extend the life of your drivetrain while making maintenance easier and more precise. It’s a practical upgrade that delivers real-world benefits in durability, performance consistency, and long-term value, whether your truck is used for work, towing, or everyday driving!

Manuals and Guides

INSTALL INSTRUCTIONS

Vehicle Fitment

2020-2026 Chevrolet Silverado/GMC Sierra 1500 3.0L Duramax LM2/LZO

WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov

FEATURES & BENEFITS:

Heavy-duty cast aluminum construction built to handle demanding towing, hauling, and off-road use
Black powder or Raw Finish coat finish with machined fins for corrosion resistance and aggressive styling
Built-in internal and external fins help reduce differential fluid temperatures for improved durability
Increased oil capacity of approximately 1/2 quart over stock for better lubrication under load
Magnetic drain plug captures metal debris to help protect gears and extend differential life
Integrated sight glass allows quick and easy fluid level checks at a glance
Calibration plug ensures proper fill level and prevents overfilling during service
Direct bolt-on design uses factory gasket and includes all necessary mounting hardware
Designed specifically for GM trucks with AAM 8.0 IFS front differential
Improves cooling, protection, and maintenance convenience in one simple upgrade

About AFE

AFE POWER PERFORMANCE PARTS AND ACCESSORIES

Since its founding in 1999, AFE Power (Advanced Flow Engineering) has been a leader in diesel performance. Built to improve airflow, fuel efficiency, and overall vehicle power, AFE Power products are engineered to handle the demands of diesel enthusiasts and professionals alike.

From AFE cold air intakes to high-performance exhausts, AFE Power offers a complete lineup of parts to boost your truck’s performance. Whether you’re running a Cummins, Powerstroke, or Duramax engine, Diesel Power Products has a full range of AFE Power parts to maximize your vehicle’s potential.

AFE COLD AIR INTAKE SYSTEMS FOR MAXIMUM AIRFLOW

One of AFE Power’s best-known products is the AFE cold air intake system, designed to increase airflow and improve combustion efficiency. With options for both open and closed systems, AFE cold air intakes are built to optimize horsepower and throttle response. For those aiming to push their trucks to the limit, these intakes provide the airflow needed for consistent, powerful performance.

AFE FILTERS FOR DIESEL ENGINES

AFE filters are made with various filter media to suit different driving environments. Choose from the Pro 5R, Pro 10R, Pro-GUARD 7, and Pro DRY S filters to achieve the right balance of airflow and filtration. Engineered with multiple layers of protection, AFE filters capture finer debris while maintaining excellent airflow, extending your engine's life and efficiency.

AFE POWER EXHAUST SYSTEMS FOR ENHANCED PERFORMANCE

Upgrading to an AFE Power exhaust system reduces backpressure and increases exhaust flow, allowing for improved performance and fuel efficiency. Built with premium materials, these exhausts provide a deeper sound without compromising factory emissions. AFE Power’s exhaust options help you achieve a cleaner, more efficient burn while adding an aggressive tone to your truck’s performance.

ABOUT ADVANCED FLOW ENGINEERING (AFE)

Headquartered in Corona, California, Advanced Flow Engineering (AFE) is known for its high-tech, in-house manufacturing and testing facilities, which include capabilities like CNC machining, CAD design, dyno testing, and more. With a commitment to quality and innovation, AFE Power continues to push the boundaries in diesel performance parts, delivering products that meet the needs of today’s diesel enthusiasts.

SHOP AFE PARTS AT DIESEL POWER PRODUCTS

Diesel Power Products is proud to offer a comprehensive selection of AFE parts for diesel trucks. From cold air intakes and filters to exhaust systems and tuners, we carry everything you need to upgrade your diesel truck with high-performance AFE Power products. Our experts are here to help you find the right parts for your specific needs.