ARB Dana M220 Differential Cover Black – 2021+ Ford Bronco | 0750012B

Protect one of the most vulnerable drivetrain components on your Bronco with the ARB Dana M220 Differential Cover, part #0750012B.

Designed for vehicles equipped with the Dana M220 rear axle, this heavy-duty differential cover is a significant upgrade over a typical factory stamped-steel cover. ARB manufactures the cover from high-strength cast iron to help protect the differential housing, ring and pinion gears, carrier assembly and locking differential components from rocks, ledges and other off-road hazards.

The 0750012B version features a durable black powder-coated and clear-coated finish, making it an excellent choice for Bronco owners who want serious differential protection with a clean, understated appearance.

Vehicle Fitment

Ford Bronco

• 2021+

• Rear axle applications equipped with Dana M220 differential

Axle: Dana M220
Location: Rear Differential

IMPORTANT: Fitment is based on the axle installed in the vehicle. Verify that your Bronco is equipped with the Dana M220 rear axle before ordering.

Features

• Heavy-duty ARB Dana M220 differential cover

• Fits applicable 2021+ Ford Bronco models

• Designed for the Dana M220 rear axle

• Heavy-duty cast iron construction

• Black finish

• Powder-coated and clear-coated

• Protects the differential housing

• Helps protect the ring and pinion gear set

• Helps protect carrier and differential components

• Compatible with factory differentials and applicable ARB Air Locker installations

• Computer-optimized cross-brace design

• Adds structural strength to the differential housing

• Helps reduce differential housing flex

• Recessed high-tensile cap screws

• Hardware is protected from trail obstacles

• Low-profile drain plug helps resist impact damage

• Integrated dipstick

• High-strength neodymium magnet

• Magnet positioned in the end of the dipstick

• Helps capture metallic particles suspended in differential oil

• Optimized approach/departure geometry

• Designed for demanding off-road use

• ARB part number 0750012B

• 3-year warranty

Heavy-Duty Differential Protection

The differential is positioned low on the vehicle and can be exposed to:

• Rocks

• Ledges

• Ruts

• Trail debris

• Hard impacts

• Off-road obstacles

Damage to a factory differential cover can lead to fluid loss and potentially expensive damage to the gears and bearings inside the axle.

ARB designed its differential covers specifically to provide a substantially stronger barrier between these obstacles and the critical drivetrain components inside the differential.

Cast Iron Construction

The ARB 0750012B differential cover is manufactured from heavy-duty cast iron.

Compared with many factory stamped-steel differential covers, the ARB design provides significantly greater resistance to deformation and impact.

The stronger construction helps protect:

• Differential housing

• Ring gear

• Pinion gear

• Carrier assembly

• Bearings

• Differential locker components

Added Differential Housing Strength

ARB's differential cover does more than simply protect against direct impacts.

The computer-optimized cross-brace design also adds structural rigidity to the differential housing.

Increasing housing stiffness can help reduce flex under load and provide additional support for the carrier bearings.

Benefits include:

• Increased differential housing strength

• Reduced housing flex

• Improved support for carrier bearings

• Helps maintain consistent gear alignment

• Improved durability under demanding loads

Recessed High-Tensile Hardware

ARB uses high-tensile cap screws that are recessed into the differential cover.

This helps protect the bolt heads from rocks and obstacles that could otherwise:

• Damage the hardware

• Round off bolt heads

• Catch on trail obstacles

• Make future servicing more difficult

The recessed hardware also contributes to the cover's clean, low-profile design.

Magnetic Dipstick

The ARB differential cover incorporates a high-quality neodymium magnet into the end of the dipstick.

The magnet helps capture metallic wear particles suspended in the gear oil before they continue circulating through the differential.

This provides an easy way to inspect for abnormal metallic debris during routine differential servicing.

Low-Profile Drain Plug

ARB incorporates a low-profile drain plug designed to minimize exposure to trail obstacles.

The design helps reduce the likelihood of the drain plug being struck or damaged during off-road use while still allowing convenient differential oil servicing.

Optimized Off-Road Geometry

The ARB Differential Cover is designed with approach and departure angles optimized for off-road use.

The geometry helps reduce the chance of the cover catching on rocks and trail obstacles while still providing the strength needed to protect the differential.

Compatible with ARB Air Lockers

ARB differential covers are designed to work with both factory differential configurations and applicable ARB Air Locker installations.

For Bronco owners planning drivetrain upgrades, this makes the 0750012B a natural complement to an ARB locking differential setup.

Black Powder-Coated Finish

The 0750012B version features a black finish.

ARB specifies:

Color: Black
Surface: Powder-coated and clear-coated

The finish provides a clean appearance while helping protect the cast iron housing from corrosion and environmental exposure.

Installation Notes

ARB differential covers are designed for the most common axle configurations, but ARB cautions that some applications may require minor modifications for proper clearance.

Possible modifications can include:

• Minor grinding for ring gear clearance

• Re-routing nearby brake lines

• Checking bolt depth

• Verifying internal component clearance

Before final tightening, always verify that the differential cover clears the ring gear and all internal differential components.

Use the correct differential fluid specified for your axle and vehicle.

Product Specifications

Manufacturer: ARB 4x4 Accessories
Part Number: 0750012B
Product: Differential Cover
Axle: Dana M220
Location: Rear
Ford Bronco Fitment: 2021+ applications equipped with Dana M220
Color: Black
Housing Material: Cast Iron
Finish: Powder-Coated / Clear-Coated
Magnetic Dipstick: Yes
Magnet Type: Neodymium
Drain Plug: Low Profile
Recessed Hardware: Yes
Cross-Brace Design: Yes
ARB Air Locker Compatible: Yes, applicable Dana M220 installations
Warranty: 3 Years

Frequently Asked Questions

What Ford Bronco models does ARB 0750012B fit?
ARB lists the Dana M220 differential cover within its 2021+ Ford Bronco application catalog. Fitment ultimately depends on whether the vehicle is equipped with the Dana M220 rear axle.

Is this a front or rear differential cover?
The Dana M220 is used as a rear axle application, so ARB 0750012B is a rear differential cover.

What is the difference between ARB 0750012 and 0750012B?
Both are Dana M220 differential covers. The 0750012B is the black-finish version.

What is the ARB differential cover made from?
ARB specifies cast iron construction.

What finish does 0750012B use?
The cover is black, powder-coated and clear-coated.

Does the cover include a magnetic drain plug?
ARB incorporates a neodymium magnet into the end of the dipstick to capture metallic particles in the differential oil.

Does the cover have a drain plug?
Yes. It uses a low-profile drain plug designed to resist damage from trail obstacles.

Does the cover strengthen the differential housing?
Yes. ARB uses a computer-optimized cross-brace design to increase housing rigidity and provide additional support for the carrier bearings.

Will it work with an ARB Air Locker?
Yes. ARB differential covers are designed to work with applicable ARB Air Locker installations as well as factory differential configurations.

Does installation ever require modification?
Possibly. ARB notes that some axle applications may require minor grinding, brake-line rerouting or other clearance adjustments. Always verify internal clearance before tightening the cover.

Does ARB provide a warranty?
Yes. ARB lists a 3-year warranty for the 0750012B differential cover.