BD Diesel Rear Differential Cover AA14-11.5 (1061825) for 2001-2018 Duramax LB7 / LLY / LBZ / LMM / LML / L5P & 2003-2018 Cummins 5.9L / 6.7L
$328.95
The BD Diesel Rear Differential Cover AA14-11.5 (1061825) is a durable, high-performance upgrade for 2001–2018 GM Duramax and 2003–2018 Dodge Ram Cummins diesel trucks. Made from heavy-duty cast aluminum, it improves axle cooling and fluid life with internal cooling fins and increased oil capacity. Features like a magnetic drain plug and stainless steel hardware ensure easy maintenance and corrosion resistance, making it ideal for towing, off-roading, and heavy-duty applications.
The BD Diesel Rear Differential Cover AA14-11.5 (1061825) is a high-performance upgrade designed for durability and improved function on heavy-duty trucks. Specifically engineered to fit 2001–2018 GM Duramax engines including LB7, LLY, LBZ, LMM, LML, and L5P, as well as 2003–2018 Dodge Ram trucks equipped with 5.9L and 6.7L Cummins diesel engines, this differential cover is built to enhance axle cooling and fluid longevity. Constructed from heavy-duty cast aluminum, it includes internal cooling fins and a larger oil capacity for better thermal management under load. The cover also features a magnetic drain plug and stainless steel hardware for easy servicing and long-term corrosion resistance, making it a reliable upgrade for towing, off-roading, or general heavy-duty use.
| Weight | 7 lbs |
|---|---|
| Dimensions | 17.5 × 14.3 × 7 in |
Fitment
2001-2018 Duramax LB7 / LLY/ LBZ / LMM / LML / L5P
2003-2018 Cummins 5.9L / 6.7L
Features
- Engineered cover design keeps oil on the gears
- Deflects oil back onto the ring gear and into the pinion gear for cooler longer life
- Extra capacity sump located at bottom for gears to pick up oil
- Internal and external cooling fins
- Stainless steel allen head cap bolts, fill plug
- Magnetic drain plug
- Gasketless cover has integral re-usable Viton O-Ring
- Dodge (2003-up) with AA14-11.5 differential
- Chevy (2001-up) with AA14-11.5 differential
Installation
Warning
- Dodge 2013-up with AAM 14-Bolt and Rear Coil Spring (RCS) use 1061825-RCS
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