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AAM 10½" Ring Gear, 14 Bolt, Rear, Differential Cover For Dodge Ram

Part Number 10302

PML AAM Diff Cover For Dodge Trucks, as-cast PML AAM Diff Cover For Dodge Trucks, black powder coat PML AAM Diff Cover For Dodge Trucks, polished
As-cast finish
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Black powder coating
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Polished finish
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Volume: 0.8 qt. over stock

Dimensions: Click here for dimensions.

PML designed this differential cover for Ram trucks with the Dodge AAM 10 1/2 inch rear gear differential.


  • Extra capacity
  • Drain, oil fill, and level check holes to make it easy to follow the 15K oil change interval
  • Magnetic drain plug and new mounting hardware included
  • Finned for heat dissipation
  • Heavy duty, sand cast aluminum construction
  • Option for temperature sensor machining

PML also makes a cover for the front differential on these Dodge Ram trucks. See PML AAM 9¼" ring gear, 14 bolt differential covers, part numbers 11118 for the 14 bolt front cover and 11136 for the 12 bolt front cover.


Many 2003 to 2013 Dodge trucks with the gas engine have this rear differential.

  • 2003 to 2013 Ram 2500 gas engine trucks
  • 2005 to 2013 Power Wagon
  • 2005 to 2007 Ram 1500 Megacab

Configurations vary.

Always check your vehicle to verify differential and clearance for a larger cover.

Some models may an 11 1/2 or a 9 1/4 inch ring gear.

Your truck may have an identification sticker in the glove box or on your driver door that specifies which differential you have. The shapes and sizes of the stock covers are not the same and can be compared to PML parts. Email PML a picture of your stock cover for assistance.

Optional Temperature Sensor Machining

This differential cover has an undrilled boss for a temperature sensor. Please call to order if you would like the boss drilled and tapped.

PML Differential Cover Compared to Stock

PML Differential Cover Part Number 10302 height compared to stock  PML Differential Cover Part Number 10302, compared to stock
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These images show this PML differential cover compared to the stock cover.


2009 Ram 2500

Pete installed this cover on his 2009 Ram 2500 5.7 Hemi truck. He decided to paint the PML cover black for a cleaner look.

2009 Ram 2500 2009 Ram 2500   Stock rear differential cover 2009 Ram 2500 2009 Ram 2500 Stock Cover   PML cover and stock gasket for AAM 10 1/2 cover PML cover and stock gasket   2009 Ram 2500 with PML differential cover installed PML cover installed on 2009 Ram 2500   PML differential cover painted black on 2009 Ram 2500 Customer painted PML cover black
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2005 Ram 2500

Vince installed this PML differential cover on his 2005 Dodge Ram 2500 5.7 Hemi truck. Our thanks to Vince for the great pictures of his install.

Ram 2500 5.7 Hemi truck2005 Ram 2500 5.7 ready for new PML cover   Ram 2500 stock rear diff cover2005 Ram 2500 stock rear differential cover   Draining the rear differentialDraining differential fluid with stock cover is messy  
Loctite for boltsPutting loctite on the bolts for the new PML cover   gasketGetting the gasket ready   Filling the differentialFilling the differential after the PML cover is installed   PML rear differential cover installedPML cover installed on 2005 Ram 2500 5.7 truck
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PML Differential Cover Features:

  • Increased oil capacity for cooler temperatures
  • Sand-cast aluminum with raised fins
  • 3/16-inch thick wall construction to add strength to differential housing
  • 3/8-inch thick gasket flange will not bend when bolts are tightened
  • Machined gasket surface for a secure seal using RTV or factory reusable gasket
  • Oil changes without removing the cover
  • All hardware provided, including magnetic drain plug

Learn more about finishes and construction of PML parts.