Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Your cart
-
0-9
-
A
-
B
-
R
-
S
ATS Diesel
ATS Diesel Protector Rear Differential Cover for 14-Bolt 11.5in AAM Axle - Select GM/Ram 1999-2014
$289.99
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Fits select 1999-2014 Dodge/Ram 2500/3500 and Chevrolet/GMC Silverado/Sierra 2500 HD/3500 heavy-duty trucks equipped with the 14-bolt 11.5-inch American Axle (AAM) rear end.
The ATS Diesel Protector Rear Differential Cover is engineered to provide superior protection and cooling for high-torque towing and heavy-duty applications. Designed specifically for the 11.5-inch AAM axle found in many 3/4-ton and 1-ton GM and Ram pickups, this cover increases fluid capacity compared to the factory unit. The cast construction and cooling fins help dissipate heat more effectively, extending the life of your gear oil and internal components while adding structural rigidity to the axle housing.
- Fits 14-bolt 11.5-inch American Axle (AAM) rear differentials
- Enhanced cooling capacity via integrated heat-dissipating fins
- Increased oil volume for better thermal management
- Durable cast construction for maximum housing protection
- Direct-fit replacement for the OE cover
- Manufacturer Part Number: 402-915-6248
📘 Guides & Manuals
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006-2010 | Chevrolet | Express 2500 | Base |
| 2006 | Chevrolet | Express 2500 | LS |
| 2006 | Chevrolet | Express 2500 | LT |
| 2006-2010 | Chevrolet | Express 3500 | Base |
| 2001-2005 | Chevrolet | Silverado 2500 HD | Base |
| 2001-2005 | Chevrolet | Silverado 2500 HD | LS |
| 2001-2005,2007-2014 | Chevrolet | Silverado 2500 HD | LT |
| 2007-2014 | Chevrolet | Silverado 2500 HD | LTZ |
| 2004-2005,2007-2014 | Chevrolet | Silverado 2500 HD | WT |
| 2001-2005 | Chevrolet | Silverado 3500 | Base |
| 2001-2005 | Chevrolet | Silverado 3500 | LS |
| 2001-2005 | Chevrolet | Silverado 3500 | LT |
| 2004 | Chevrolet | Silverado 3500 | WT |
| 2007-2014 | Chevrolet | Silverado 3500 HD | LT |
| 2007-2014 | Chevrolet | Silverado 3500 HD | LTZ |
| 2007-2014 | Chevrolet | Silverado 3500 HD | WT |
| 1999-2002 | Dodge | Ram 2500 | Base |
| 2005-2010 | Dodge | Ram 2500 | Laramie |
| 2004,2006-2010 | Dodge | Ram 2500 | SLT |
| 2006-2007 | Dodge | Ram 2500 | Sport |
| 2004,2006-2010 | Dodge | Ram 2500 | ST |
| 2008-2010 | Dodge | Ram 2500 | SXT |
| 2010 | Dodge | Ram 2500 | TRX |
| 2006-2007 | Dodge | Ram 2500 | TRX4 |
| 1999-2002 | Dodge | Ram 3500 | Base |
| 2004-2010 | Dodge | Ram 3500 | Laramie |
| 2004-2010 | Dodge | Ram 3500 | SLT |
| 2006-2007 | Dodge | Ram 3500 | Sport |
| 2004-2010 | Dodge | Ram 3500 | ST |
| 2008-2009 | Dodge | Ram 3500 | SXT |
| 2007 | Dodge | Ram 3500 | TRX4 |
| 2006-2010 | GMC | Savana 2500 | Base |
| 2006-2010 | GMC | Savana 3500 | Base |
| 2002-2005 | GMC | Sierra 2500 HD | Base |
| 2011-2014 | GMC | Sierra 2500 HD | Denali |
| 2001-2002 | GMC | Sierra 2500 HD | SL |
| 2001-2005,2007-2014 | GMC | Sierra 2500 HD | SLE |
| 2001-2005,2007-2014 | GMC | Sierra 2500 HD | SLT |
| 2003-2005,2007-2014 | GMC | Sierra 2500 HD | WT |
| 2002-2005 | GMC | Sierra 3500 | Base |
| 2001-2002 | GMC | Sierra 3500 | SL |
| 2001-2005 | GMC | Sierra 3500 | SLE |
| 2001-2005 | GMC | Sierra 3500 | SLT |
| 2004-2005 | GMC | Sierra 3500 | WT |
| 2011-2014 | GMC | Sierra 3500 HD | Denali |
| 2007-2014 | GMC | Sierra 3500 HD | SLE |
| 2007-2014 | GMC | Sierra 3500 HD | SLT |
| 2007-2014 | GMC | Sierra 3500 HD | WT |
| 2006 | Hummer | H1 | Alpha |
| 2011-2012 | Ram | 2500 | Laramie |
| 2011-2012 | Ram | 2500 | Laramie Longhorn |
| 2012 | Ram | 2500 | Outdoorsman |
| 2011-2012 | Ram | 2500 | SLT |
| 2011-2012 | Ram | 2500 | ST |
| 2011-2012 | Ram | 3500 | Laramie |
| 2011-2012 | Ram | 3500 | Laramie Longhorn |
| 2011-2012 | Ram | 3500 | SLT |
| 2011-2012 | Ram | 3500 | ST |
Choose your Location
-
Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
Product Comparison
How they are Different
|
__ __ |
|
|---|---|
| Description |
Description - __ |
| Rating |
Rating - __ |
| Vendor |
Vendor - __ |
| Color |
Color - __ |
|
|
Compare products ( / )
The Atlus Price Guarantee
If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom right of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
ATS Diesel Protector Rear Differential Cover for 14-Bolt 11.5in AAM Axle - Select GM/Ram 1999-2014
$289.99
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
Price Match
Our prices are updated daily to ensure we can offer you the best possible price. In the unlikely case that you have found a lower price, please contact us at hello@atlusauto.com and we'll do our best to answer your query right away!
Easy Financing
We've partnered up with Affirm/Shop!
Why use Affirm/Shop?
- Clear application process
- Friendly support team
- Spread a big payment interest-free
- Ability to buy what you want
How does it work?
- Add your purchase to cart
- Select Shop Payments at checkout
- Complete the application
- Compare any available finance options
Share:
$289.99
$289.99
$289.99
Fits select 1999-2014 Dodge/Ram 2500/3500 and Chevrolet/GMC Silverado/Sierra 2500 HD/3500 heavy-duty trucks equipped with the 14-bolt 11.5-inch American Axle (AAM) rear end.
The ATS Diesel Protector Rear Differential Cover is engineered to provide superior protection and cooling for high-torque towing and heavy-duty applications. Designed specifically for the 11.5-inch AAM axle found in many 3/4-ton and 1-ton GM and Ram pickups, this cover increases fluid capacity compared to the factory unit. The cast construction and cooling fins help dissipate heat more effectively, extending the life of your gear oil and internal components while adding structural rigidity to the axle housing.
- Fits 14-bolt 11.5-inch American Axle (AAM) rear differentials
- Enhanced cooling capacity via integrated heat-dissipating fins
- Increased oil volume for better thermal management
- Durable cast construction for maximum housing protection
- Direct-fit replacement for the OE cover
- Manufacturer Part Number: 402-915-6248
📘 Guides & Manuals
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006-2010 | Chevrolet | Express 2500 | Base |
| 2006 | Chevrolet | Express 2500 | LS |
| 2006 | Chevrolet | Express 2500 | LT |
| 2006-2010 | Chevrolet | Express 3500 | Base |
| 2001-2005 | Chevrolet | Silverado 2500 HD | Base |
| 2001-2005 | Chevrolet | Silverado 2500 HD | LS |
| 2001-2005,2007-2014 | Chevrolet | Silverado 2500 HD | LT |
| 2007-2014 | Chevrolet | Silverado 2500 HD | LTZ |
| 2004-2005,2007-2014 | Chevrolet | Silverado 2500 HD | WT |
| 2001-2005 | Chevrolet | Silverado 3500 | Base |
| 2001-2005 | Chevrolet | Silverado 3500 | LS |
| 2001-2005 | Chevrolet | Silverado 3500 | LT |
| 2004 | Chevrolet | Silverado 3500 | WT |
| 2007-2014 | Chevrolet | Silverado 3500 HD | LT |
| 2007-2014 | Chevrolet | Silverado 3500 HD | LTZ |
| 2007-2014 | Chevrolet | Silverado 3500 HD | WT |
| 1999-2002 | Dodge | Ram 2500 | Base |
| 2005-2010 | Dodge | Ram 2500 | Laramie |
| 2004,2006-2010 | Dodge | Ram 2500 | SLT |
| 2006-2007 | Dodge | Ram 2500 | Sport |
| 2004,2006-2010 | Dodge | Ram 2500 | ST |
| 2008-2010 | Dodge | Ram 2500 | SXT |
| 2010 | Dodge | Ram 2500 | TRX |
| 2006-2007 | Dodge | Ram 2500 | TRX4 |
| 1999-2002 | Dodge | Ram 3500 | Base |
| 2004-2010 | Dodge | Ram 3500 | Laramie |
| 2004-2010 | Dodge | Ram 3500 | SLT |
| 2006-2007 | Dodge | Ram 3500 | Sport |
| 2004-2010 | Dodge | Ram 3500 | ST |
| 2008-2009 | Dodge | Ram 3500 | SXT |
| 2007 | Dodge | Ram 3500 | TRX4 |
| 2006-2010 | GMC | Savana 2500 | Base |
| 2006-2010 | GMC | Savana 3500 | Base |
| 2002-2005 | GMC | Sierra 2500 HD | Base |
| 2011-2014 | GMC | Sierra 2500 HD | Denali |
| 2001-2002 | GMC | Sierra 2500 HD | SL |
| 2001-2005,2007-2014 | GMC | Sierra 2500 HD | SLE |
| 2001-2005,2007-2014 | GMC | Sierra 2500 HD | SLT |
| 2003-2005,2007-2014 | GMC | Sierra 2500 HD | WT |
| 2002-2005 | GMC | Sierra 3500 | Base |
| 2001-2002 | GMC | Sierra 3500 | SL |
| 2001-2005 | GMC | Sierra 3500 | SLE |
| 2001-2005 | GMC | Sierra 3500 | SLT |
| 2004-2005 | GMC | Sierra 3500 | WT |
| 2011-2014 | GMC | Sierra 3500 HD | Denali |
| 2007-2014 | GMC | Sierra 3500 HD | SLE |
| 2007-2014 | GMC | Sierra 3500 HD | SLT |
| 2007-2014 | GMC | Sierra 3500 HD | WT |
| 2006 | Hummer | H1 | Alpha |
| 2011-2012 | Ram | 2500 | Laramie |
| 2011-2012 | Ram | 2500 | Laramie Longhorn |
| 2012 | Ram | 2500 | Outdoorsman |
| 2011-2012 | Ram | 2500 | SLT |
| 2011-2012 | Ram | 2500 | ST |
| 2011-2012 | Ram | 3500 | Laramie |
| 2011-2012 | Ram | 3500 | Laramie Longhorn |
| 2011-2012 | Ram | 3500 | SLT |
| 2011-2012 | Ram | 3500 | ST |
Authencity Guaranteed
We only sell authentic products from verified brand partners and retail partners globally.
Can’t Find the Part You Need?
Our catalog represents only a portion of the automotive products available through our supplier network. If you cannot find a specific part, brand, or application on our website, submit a request below, and our team will help source it for you.
Please include as much information as possible, such as your vehicle's year, make, model, trim, engine, desired brand, or part number, to help us quickly identify the correct product.
- Choosing a selection results in a full page refresh.
- Opens in a new window.
