The ATS Protector cover replaces the stamped cover on the AAM 14-bolt 11.5 in. rear. It is cast aluminum with a black powder coat and holds 2.5 quarts more gear oil than stock.
The extra oil and a built-in heat sink help keep gear oil cooler when you tow. You can also service the fluid without pulling the cover.
Who it's for
Truck owners who tow or haul and want cooler gear oil and easier fluid changes.
Key specs (per ATS Diesel)
Manufacturer
ATS Diesel Performance
Part number
402-915-6248
Axle
AAM 14-bolt 11.5 in. rear
Material
Cast aluminum, black powder coat
Added capacity (per ATS)
2.5 quarts over stock
Cooling
Built-in heat sink
What's included
ATS Protector differential cover kit with install hardware
Fitment notes
Listed for: 2001-and-newer GM 2500HD/3500 with the full-floating AAM 11.5 in. rear (all Duramax and 8.1L trucks); 2003 Dodge Ram 2500 high-output diesel and 2003 Ram 3500 with the AAM 11.5 in.; 2004-2008 Dodge Ram 2500/3500 diesel with the AAM 11.5 in..
Check your axle tag or cover bolt count before ordering.
Professional install available at Powertech Diesel, Idaho Falls — call 208-542-7793.
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