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Ford Sterling 10½" Ring Gear, 12 Bolt, Straight Fins, Differential Cover

PML Part Number 7086

PML makes three covers for this differential. Read About PML Ford 10.5 Covers.

PML Ford F-250 Differential Cover, As-Cast
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PML Ford F-250 Differential Cover, Black
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PML Ford F-250 Differential Cover, Polished
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As-cast finish
Go To Cart
Black powder coating
Polished finish

Volume: 0.8 quarts over stock, approximately

Dimensions: Click here for dimensions. A separate window or tab will open.

This PML cover for the big Ford trucks and SUVs has a traditional straight fin design. It adds capacity to help lower the differential fluid temperature. Thick walls and gasket flanges add strength to the differential housing and provide a uniform clamping force on the gasket surface for a secure seal.

We have some of these covers (without fill and level check holes) on special.

This rear differential cover fits the 10¼ inch or 10½ inch Sterling rear end found on:

  • Ford F-250, 1989 to 2016, some 2017 and newer models
  • Ford F-350 single rear wheel, 1989 to 2016, some 2017 and newer models (if you have a Dually, see our Dana 80 cover)
  • Ford Excursion, 2000 to 2005

PML makes three different rear end covers for the Ford Sterling 10¼ and 10½ inch ring gear, 12 bolt differentials. They have the same prices but different fin patterns, shapes, sizes and features.

14 Bolt Rear Differential: In 2017 Ford introduced a 14 bolt rear differential cover. Contact us at or 310-671-4345 if interested in a cover for this.

PML offers a matching front end cover. Please call for information.

See a comparison of all PML Ford Sterling rear covers.

PML Differential Cover Compared to Stock

PML Differential Cover Part Number 7086 height compared to stock  PML Differential Cover Part Number 7086, compared to stock
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These images show this PML differential cover compared to the stock cover.


PML F-350 diff cover installed

Picture of patterned fin differential cover (part number 9513) on the Kelderman Screamin' Diesel project truck, a 2004 Harley–Davidson Super Duty F–350 pickup.

PML F-250 differential cover with RTV

Click here for an article by The Diesel Garage showing the installation of patterned fin front and rear covers (part numbers 10816 and 10737) on an F–250. Image shows RTV on the gasket surface.

PML F-250 differential cover with RTV

Richard's F–250 has a custom paint job on the body and he wanted a custom differential cover to match. Richard selected part number 10816 and matching front cover 10737 and did a custom powder coat in shiny red.

To give your pickup a custom look, buy an as-cast differential cover. We irridite our covers so on arrival they are clean and ready to install or to let you be creative as Richard did with his.

2001 F–350 with PML Differential Cover

Universal Transmission in New Mexico installed PML differential covers and transmission pan on this 2001 Ford F–350 4WD. The truck is lifted so the heavy duty PML covers with the black powder coat and shaved fins add a great look in addition to extra capacity.

2001 F350    PML Sterling 10.5 rear end cover on 2001 F350
From left to right: 2001 F350, PML rear cover for Ford Sterling 10.5 inch axles
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Matching front differential cover is PML Part Number 6063.
Transmission pan is PML Part Number 9323.

For a larger picture, please click one of the above images. A separate window will open showing a bigger picture. (The larger pictures take a minute to display.)

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.