
Mag-Hytec AA 14-11.5 CS Rear Differential Cover (2014-2018 2500 6.7L Cummins)
Fits: Cummins 6.7L (2013-2018 Cummins)
Diesel Dollars is Southern Diesel Supply's Loyalty Program. Purchasing with Us Earns you 1 Point for every 1 Dollar spent to use for future buys!
By ordering the Mag-Hytec AA 14-11.5 CS Rear Differential Cover (2014-2018 2500 6.7L Cummins) you will earn 360 DIESEL DOLLARS in your SDS Fuel Tank!
The Mag-Hytec AA 14-11.5 CS is a finned aluminum rear differential cover for the AAM 11.5 rear axle on 2014-2018 Ram 2500 pickups with the 6.7L Cummins. It holds 8 quarts and adds a magnetic drain plug, a dipstick and a 1/8" sender port. Owners buy it so routine gear oil service no longer means pulling the cover.
Fitment
Fits 2014-2018 Ram 2500 pickups with the 6.7L Cummins, listed by Mag-Hytec as the 2014-2018 Dodge Ram 2500 Pickup. Our catalog tag covers the 2013-2018 6.7L, but this cover is listed for 2014-2018 2500 trucks only, so 2013 trucks and the Ram 3500 are outside this listing. Verify fitment by VIN or call before you order.
Why this part
This cover makes fluid changes on the rear axle easy. Drain through the built-in magnetic drain plug and check the level with the oil dipstick, so routine lube maintenance happens without removing the cover. The magnet holds the fine wear metal the gears shed so it stays out of the oil between services.
The housing is built from aircraft grade aluminum with fins on the outside, and it holds 8 quarts. An O-ring gasket gives a leak-free seal with no sealant required. The pre-drilled and tapped 1/8" sender port is ready for a temperature sender if you want a gauge on rear diff temperature.
What you get
- Mag-Hytec AA 14-11.5 CS rear differential cover
- O-ring gasket
- Magnetic drain plug
- Aluminum dipstick
- 303 stainless steel hardware
It comes ready for installation on your truck.
Specifications
Part number: AA 14-11.5 CS. Mag-Hytec's feature list:
- 8 Quart Capacity
- Finned Aircraft Aluminum Housing
- O-Ring Gasket, No Sealant Required
- Pre-Drilled & Tapped 1/8" Sender Port
- Magnetic Drain Plug & Aluminum Dipstick
- Routine Lube Maintenance Without Removing Cover
- Limited Lifetime Warranty On Cover, 5-Year On O-Rings
Manufacturer warranty: Limited Lifetime.
Installation notes
You will need allen key wrenches, both to install the cover and for later service. The O-ring gasket seals without sealant, so there is no RTV to apply or clean up.
About Mag-Hytec
Mag-Hytec, of Van Nuys, California, covers a lot of ground on the Cummins side: AAM 11.5 rear covers for 2003 and newer Cummins trucks, Dana 60 front covers, and deep 68RFE transmission pans for the 2007.5 and newer 6.7L. Every cover and pan carries the magnetic drain plug that gives the company its name.
Frequently asked questions
What tools do I need to install it?
Allen key wrenches, for both installation and service. The cover comes with 303 stainless steel hardware and is ready to install.
Do I need gasket sealant?
No. The O-ring gasket provides a leak-free seal with no sealant required.
Will it fit a 2013 Ram 2500 or a Ram 3500?
Mag-Hytec lists this cover for the 2014-2018 Ram 2500. For a 2013 truck or a 3500, call the shop with your VIN before you order.
Questions on fitment? Call the shop at the number in the header. We install everything we sell.
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Finish the job
Parts our Wildwood techs pair with this one — take a look before you check out.
Diesel Dollars is Southern Diesel Supply's Loyalty Program. Purchasing with Us Earns you 1 Point for every 1 Dollar spent to use for future buys!
By ordering the Mag-Hytec AA 14-11.5 CS Rear Differential Cover (2014-2018 2500 6.7L Cummins) you will earn 360 DIESEL DOLLARS in your SDS Fuel Tank!


