ATP Parts 111103 Differential Cover

OE-Style Differential Cover for 8.80" Ring Gear Applications

ATP Parts 111103 is a replacement differential cover kit for Ford, Mazda, Lincoln, and Mercury vehicles equipped with an 8.80" ring gear. It restores the sealed housing that retains gear lubricant around the ring and pinion gears, bearings, and bushings.

Built for direct replacement use, ATP Parts 111103 is a practical choice for Ford F-150, Ranger, Explorer, and Bronco service work where the original cover has been damaged or is leaking.

Key Features

• Replacement differential cover for 8.80" ring gear applications
• Includes gasket and internal magnet
• OE-style fit and function for direct replacement service
• Helps maintain lubricant retention inside the differential housing
• Cross-references Ford service numbers including E3AZ4033A and F0TZ4033A

Detailed Description

The differential cover is a critical sealing component that protects the gear set inside the axle housing. When the cover is bent, corroded, or damaged by road debris, lubricant loss can lead to accelerated wear of the ring and pinion gears, bearings, and bushings. ATP Parts 111103 is engineered as a replacement differential cover kit with the gasket and internal magnet needed for service on 8.80" ring gear rear axle applications. It is a direct-fit option for many Ford F-150, Ford Ranger, and Ford Explorer models, along with select Mazda, Lincoln, and Mercury vehicles.

This part cross-references Ford service numbers such as E3AZ4033A and F0TZ4033A for the same application.

What It Helps Address

• Differential fluid leaks from a damaged or warped cover
• Corrosion on the original axle housing cover
• Cover damage from road debris or impact
• Leakage caused by over-tightened bolts or drain plug service
• Metal debris collection inside the differential housing

Installation Notes and Tips

• Drain the axle lubricant before removing the existing cover.
• Clean the housing flange thoroughly before installing the new gasket.
• Verify the vehicle uses an 8.80" ring gear before ordering.
• Inspect the mating surface for dents, pitting, or sealant residue.
• Refill the differential with the correct lubricant after installation.

Quality Assurance

ATP Parts 111103 is built as a replacement part designed to fit and function like the original differential cover on listed applications. The included gasket and internal magnet support a complete service replacement for compatible Ford, Mazda, Lincoln, and Mercury vehicles.