Take your truck’s rear end protection to the next level with the ATS 402-915-6248 Rear Differential Cover—a serious upgrade built for drivers who demand strength, reliability, and style. Designed to replace your weak factory cover, this heavy-duty unit delivers superior impact resistance, increased fluid capacity for improved cooling, and long-term protection against costly differential damage. Whether you’re towing, hauling, or hitting rough terrain, this cover helps keep temperatures down and components protected under pressure. And it’s not just about performance—the aggressive, high-quality finish gives your undercarriage a bold, upgraded look that stands out every time you crawl under your truck. If you want protection you can trust and a look that matches your build, this is the upgrade your drivetrain deserves.

WHY THIS ATS DIFF COVER OUTPERFORMS STOCK

• Heavy-duty cast construction protects against impacts
• Reinforced design prevents housing flex under load
• Increased fluid capacity improves cooling & gear life
• Magnetic drain plug captures harmful metal particles
• Machined sealing surface ensures leak-free performance

? Bottom line: stronger protection + cooler temps = longer differential life

BUILT FOR WORK, TOWING & OFF-ROAD ABUSE

This isn’t just for show trucks.

Take your truck’s rear end protection to the next level with the ATS 402-915-6248 Rear Differential Cover—a serious upgrade built for drivers who demand strength, reliability, and style. Designed to replace your weak factory cover, this heavy-duty unit delivers superior impact resistance, increased fluid capacity for improved cooling, and long-term protection against costly differential damage. Whether you’re towing, hauling, or hitting rough terrain, this cover helps keep temperatures down and components protected under pressure. And it’s not just about performance—the aggressive, high-quality finish gives your undercarriage a bold, upgraded look that stands out every time you crawl under your truck. If you want protection you can trust and a look that matches your build, this is the upgrade your drivetrain deserves.

If you:

• Tow heavy trailers
• Run oversized tires
• Off-road or hit rough terrain
• Push your truck hard daily

 This upgrade is critical protection, not optional.

COOLER DIFFERENTIAL = LONGER LIFE

Heat is the #1 killer of differential components.

The ATS cover:

• Holds more fluid → better heat dissipation
• Reduces thermal breakdown of gear oil
• Helps maintain consistent lubrication under load

That means:
✔ Longer gear life
✔ Reduced wear
✔ Better reliability under stress

ATS Protector Rear Differential Cover for AAM 14-Bolt 11.5 Inch. Cast aluminum construction with a black powdercoat finish. Kit.
Details:

• ATS Protector Differential Cover - AAM 14-Bolt 11.5-inch Rear
• 2.5 quart fluid capacity over stock
• Optimal gear lubrication
• Easy fluid service without removing cover
• Aluminum pan with black powdercoat finish
• Built-in Heat sink for cooler oil
• Everythings included for easy installation
• Sold As A Kit
• SKU: 4029156248

Fits:

• 2001-Present GM 2500HD|3500 w/ Full Floating Axle (All Duramax and 8.1L Equipped Trucks) w/AAM 14-Bolt 11.5 Inch Rear Differential
• 2003 Dodge Ram 2500 High Output Diesels w/AAM 14-Bolt 11.5 Inch Rear Differential
• 2003 Dodge Ram 3500 Standard and High Output w/AAM 14-Bolt 11.5 Inch Rear Differential
• 2004-2008 Dodge Ram 2500|3500 Standard and High Output Diesels w/AAM 14-Bolt 11.5 Inch Rear Differential