ATS Diesel ATS Diesel 01+ GM / 03+ Dodge 14-Bolt 11.5in American Axle ATS Protector Rear Differential Cover
ATS Diesel ATS Diesel 01+ GM / 03+ Dodge 14-Bolt 11.5in American Axle ATS Protector Rear Differential Cover
ATS Diesel ATS Diesel 01+ GM / 03+ Dodge 14-Bolt 11.5in American Axle ATS Protector Rear Differential Cover
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ATS Diesel 01+ GM / 03+ Dodge 14-Bolt 11.5in American Axle ATS Protector Rear Differential Cover

ATS Diesel
ATS402-915-6248
4029156248
Diff Covers
6 Units In Stock - Ships Next Business Day
$ 289.99
$ 289.99

SKU: 402-915-6248 | UPC: 4029156248

ATS Diesel 01+ GM / 03+ Dodge 14-Bolt 11.5in American Axle ATS Protector Rear Differential Cover

This ATS Diesel Protector rear differential cover upgrades 2001+ GM heavy-duty trucks and 2003+ Dodge Ram models equipped with the 14-bolt 11.5-inch American Axle rear axle. Cast from high-strength aluminum, it delivers increased gear oil capacity and superior heat dissipation to keep your differential running cooler under heavy loads. MPN 402-915-6248 ensures reliable protection for towing, hauling, and off-road demands.

Key Features

  • Cooling Fins: Internal and external fins pull heat away from gear oil, reducing temperatures by up to 30 degrees during extended operation.
  • Increased Capacity: Deep sump design adds 2.5 quarts of fluid for better lubrication and longevity of ring and pinion gears.
  • Neodymium Magnets: Dual horseshoe magnets capture ferrous debris from the drain plug and inside the cover to prevent wear.
  • O-Ring Gasket: Precision-machined O-ring provides a leak-proof seal without RTV silicone for easy installation.
  • Heavy-Duty Walls: 0.5-inch thick aluminum construction resists impacts and maintains structural integrity in rough terrain.

Product Notes

  • Direct bolt-on replacement using factory mounting holes.
  • Drain and fill plugs positioned for easy access with standard tools.
  • Weight: 28 lbs | Shipping box dimensions: 20in x 20in x 8in.

Installation Notes

  • Professional installation recommended.
  • Drain existing gear oil completely before removing stock cover.
  • Includes all necessary hardware, bolts, and O-ring gasket for direct fit.

This Part Fits

Year Make Model Submodel
1999-2002 Dodge Ram 2500 Base
2005-2010 Dodge Ram 2500 Laramie
2004-2010 Dodge Ram 2500 SLT
2006-2007 Dodge Ram 2500 Sport
2006-2010 Dodge Ram 2500 ST
2008-2010 Dodge Ram 2500 SXT
2001-2005 Chevrolet Silverado 2500 HD LT
2007-2014 Chevrolet Silverado 2500 HD LTZ
2004-2005 Chevrolet Silverado 2500 HD WT
2001-2005 Chevrolet Silverado 3500 Base
2001-2005 Chevrolet Silverado 3500 LS
2001-2005 Chevrolet Silverado 3500 LT
2007-2014 Chevrolet Silverado 3500 HD LT
2007-2014 Chevrolet Silverado 3500 HD LTZ
2007-2014 Chevrolet Silverado 3500 HD WT
2001-2005 GMC Sierra 3500 SLE
2001-2005 GMC Sierra 3500 SLT
2011-2014 GMC Sierra 3500 HD Denali
2007-2014 GMC Sierra 3500 HD SLE
2006 Hummer H1 Alpha
2006-2010 Chevrolet Express 2500 Base
2006-2010 Chevrolet Express 3500 Base
2007 Dodge Ram 3500 TRX4
2006-2010 GMC Savana 2500 Base
2006-2010 GMC Savana 3500 Base
2011-2012 Ram 2500 Laramie
2011-2012 Ram 2500 Laramie Longhorn
2011-2012 Ram 2500 SLT
2011-2012 Ram 3500 Laramie
2011-2012 Ram 3500 Laramie Longhorn

Why Choose ATS Diesel?

  • Engineered for diesel trucks in racing and heavy-duty applications.
  • Cast aluminum builds withstand extreme torque and impacts.
  • Precise fitment verified on OEM 14-bolt 11.5-inch axles.

Frequently Asked Questions

  • Q: Will this cover fit my 2006 Dodge Ram 2500 Cummins with AAM 11.5" axle?
    A: Yes, it bolts directly onto 2003+ Dodge Ram 2500/3500 models equipped with the 14-bolt 11.5-inch American Axle rear differential.
  • Q: What material is the ATS Protector cover made from?
    A: High-strength cast aluminum with 0.5-inch thick walls, internal baffles, and O-ring sealing for maximum durability.
  • Q: Does installation require special tools or modifications?
    A: No modifications needed. includes all hardware and uses factory bolt locations for straightforward replacement.

Shipping & Handling

  • Method: Ground shipping via UPS or FedEx
  • Availability: In stock - ships same or next business day
  • Packaging: Secure foam-protected box, 20in x 20in x 8in
  • Weight: 28 lbs

Request For Information

Have questions about ATS Diesel 01+ GM / 03+ Dodge 14-Bolt 11.5in American Axle ATS Protector Rear Differential Cover? Fill out the form below and we'll get back to you by the next business day.
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