Heavy Diff Cover for M275 Ford SD 14 Bolt Axle

Regular price $149.00

Save: $-149.00 (Liquid error (sections/main-product line 247): divided by 0%)
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SKU : MB4104

Vendor : Motobilt

Product Type : Diff Cover

Collections : Best selling products, Best Selling Products, Diff Covers, Motobilt, Parts $101 - $500, Products,

Note: to see product components, as well as more specific information on some products, click the 'Specifications' tab next to 'Description'


What is the one part that takes abuse off-road first?  Differential covers are on the axle lower to the ground.  Factory diff covers are usually thin and unable to withstand much abuse.  Failures occur from punctures and “peeling up” the edge of the cover.  Motobilt offers a Heavy Duty Diff Cover for the Ford M275 Super Duty 14 Bolt Rear axle on year models 2017-2021. This cover is not to be mistaken with the GM Corporate 14 Bolt Rear Diff Cover.  They are not interchangeable. 

Like all of the Motobilt diff covers we answered the problem of punctures and peeling up.  The diff ring is laser cut from heavy duty 3/8” thick steel plate and the shell is laser cut and CNC formed from 1/4” thick steel plate. We fully weld the inside and out of the diff covers for the ultimate in strength.  The fill plug are welded on the inside for the perfect seal.  The fill plug is a standard pipe thread so it will be easy to replace if you should ever loose it.  A 9/16” Allen wrench is required to install and remove the fill plug.


  • Fits 2017 - 2021 Ford Super Duty 14 Bolt M275 Rear Axle Assemblies
  • Fabricated from 3/8” and 1/4” steel plate
  • Includes hardware
  • Ships bare steel to be painted the color of your choice
  • Features the Motobilt Logo


  • Dispatch: Within 24 Hours
  • Free shipping across all products on a minimum purchase of $50.
  • International delivery time - 7-10 business days
  • Cash on delivery might be available
  • Easy 30 days returns and exchanges

If you do not like the product you can return it within 15 days - no questions asked. This excludes bodysuits, swimwear and clearance sale items. We have an easy and hassle free return policy. Please look at our Delivery & Returns section for further information.



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Heavy Diff Cover for M275 Ford SD 14 Bolt Axle

Heavy Diff Cover for M275 Ford SD 14 Bolt Axle

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