PML logo PML differential cover PML transmission pan PML valve covers



Infomacion en EspaƱol

Ford Sterling 10¼" or 10½" Ring Gear
12 Bolt, Patterned Fins, Differential Cover

PML Part Number 9513

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

PML Ford 10¼, 10½" Diff Cover, as-cast PML Ford 10¼, 10½" Diff Cover, black powder coat PML Ford 10¼, 10½" Diff Cover, polished
As-cast finish
Go To Cart
Black powder coating
Go To Cart
Polished finish
Go To Cart

Volume: 0.8 quarts over stock, approximately

Dimensions: Click here for dimensions.

This PML cover for the big Ford trucks and SUVs has a patterned fin for a custom look. 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.

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.

For 4WD vehicles, if you would like front cover with a matching fin pattern, please see our part numbers 7086 and 10816.

See a comparison of all PML Ford Sterling rear covers.

PML Ford 10.5 differential cover, drain hole

Drain, Fill, Level Check, Optional Temperature Sending Unit

This PML cover has holes for drain and fill. The drain is on the bottom of the cover as shown in this image. The fill hole is on the top. A magnetic drain plug, fill plug and new mounting bolts are provided with each PML cover.

The level check hole for this differential is provided by Ford and is located on the driveshaft side of the differential housing.

A boss on side optionally can be machined for a temperature sensor for an additional cost.

PML Differential Cover Compared to Stock

PML Differential Cover Part Number 9513 height compared to stock  PML Differential Cover Part Number 9513, compared to stock
Click on image to view larger.

These images show this PML differential cover compared to the stock cover.


Customers have installed this PML differential cover on hundreds of Ford F-250 and F-350 trucks and Excursion SUVs.

2017 F-250 Installation

Five R Trucks installed this cover on their customized 2017 Ford F250. They started with the PML cover in black powder coat and painted the top of the fins red to match.

2017 Ford F250   Five R 2017 Ford F250, PML rear differential cover   PML rear differential cover customized with red painted fins
Click on image to view larger.

2004 F-350 Installation

PML's differential cover looks great on the back of Kelderman's Screamin' Diesel F-350. The F-350 is a 2004 Harley Davidson Super Duty with Kelderman's custom designed system to lower the bed to the ground. Makes it easy to roll your bike to and from the bed.

See the write-up in Truck Trend On-Line.

Kelderman Custom 2004 F-350, PML rear differential cover   Kelderman Custom 2004 F-350, Harley Davidson   Kelderman Custom 2004 F-350, bed lowering to ground
Click on image to view larger.

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.