AAM 12.0 For Ram Differential Cover

Volume: about 0.6 quarts over stock

Dimensions: Click here for dimensions. 

Number of Bolts: 14

2019 and newer Ram 2500 and Ram 3500 trucks may have this new American Axle Manufacturing (AAM) 14 bolt differential. The ring gear may be 12 or 11.8 or 11.5 inches.

PML designed this differential cover based on the stock cover from a 2019 Ram 2500. 2018 and older trucks have a similar looking differential cover but the shapes and bolt hole patterns are slightly different.

Check your factory fluid change procedure before ordering. The level check hole on the PML cover is about 3/8 inch diameter. If you need a large level check hole, for example a hole you can stick your finger in, you would need to use a tool or this cover may not work for you.

Benefits:

• Drain and magnetic drain plug included
• Heavy duty, sand cast aluminum
• Finned for heat dissipation
• Works with brake line bracket, no modification needed
• Clears sway and pan hard bars on trucks with coil suspension
• Extra capacity

Applications:

We have seen this new differential on:

• 2019 and newer Ram 2500 and 3500

Always check your truck to verify your differential and clearance. Configurations vary. We do not know if all trucks or just some are getting these newer differentials.

Gasket: customers have told us that Mopar Part Number 68454491AA is the gasket for this differential. If your truck has a difference gasket part number, please contact us.

Front Differential Cover: for information on a matching front cover, see PML Part Number 11136.

2018 and older trucks:

• 2018 and older trucks with a sway bar, such as 2014 to 2018 Ram 2500, see PML Part Number 11147
• 2018 and older Ram 3500 and 2013 and older Ram 2500 trucks with the AAM 11.5 or 11.8, see PML Part Number 10361

Drain, Fill and Level Check, and Optional Temperature Sensor Machining

  Click on image to view larger.

On this PML cover, the level check is the small hole on the right/passenger side. There is a fill hole on the top and drain on the bottom.

A magnetic drain plug and plugs for the level check and fill holes are included.

Check your factory fluid change procedure before ordering. The fluid level check procedure is the same with the stock cover as with the PML cover. On the PML cover, the level check hole diameter is about 0.300 (3/8) inch. If a larger level check hole is needed (for example, if you need to stick your finger in the level check hole), contact PML.

If this cover is ordered with 1/8 NPT hole for an aftermarket temperature sending unit, the hole will be machined on the left/driver side of the cover at about the 8 o'clock position. A plug is provided. Machining for a temperature sensor is OPTIONAL and there is a machining charge.

Inside of PML Cover

  Click on image to view larger.

Included With PML Cover

PML includes new mounting bolts, fill plug, level check hole plug, and a magnetic drain plug with each cover. The washer for the magnetic drain plug can be reused.

     Click on image to view larger.

Stock Cover

The covers for 2019 and newer and 2003 and newer are similar but NOT interchangeable.

This PML cover, part number 11176, replaces this 2019 and newer OEM cover. Here are pictures of the outside and inside of the OEM cover.
   

Comparing 2003 and newer and 2019 and newer covers:

Gasket

Gasket: customers have told us that Mopar Part Number 68454491AA is the gasket for this differential. If your truck has a difference gasket part number, please contact us.