Timken HM89411 Differential Pinion Race - Rear Outer

Timken HM89411 Differential Pinion Race

The Timken HM89411 is a differential pinion race for rear outer applications that demand precise bearing support and consistent load handling. Built for Ford and Lincoln driveline service, it is sized for tapered roller bearing use in axle and differential assemblies where radial and axial loads must be managed together.

Key Features

• Timken tapered roller bearing component for differential pinion service
• Outside diameter: 3.000 in. (76.20 mm)
• Width: 0.906 in. (23.02 mm)
• Bearing cup radius: 0.031 in. (0.80 mm)
• Supports both radial and axial loads in compact driveline packaging
• Cross-reference: National HM89411

Detailed Description

Timken HM89411 is a differential pinion race used in rear outer bearing positions across a wide range of Ford and Lincoln trucks, SUVs, and vans. It is commonly selected for Ford F-150, Ford Expedition, Ford F-250 Super Duty, Ford F-350 Super Duty, Lincoln Navigator, and related applications where the correct pinion bearing race is critical to axle setup and long-term durability. The part number HM89411 is associated with Timken tapered roller bearing engineering, which is built to handle heavy loads while maintaining stable operation in a compact space.

For service work, the cone and cup should be replaced together to maintain bearing reliability and service life. This part is used in rear outer differential pinion bearing locations, including applications with 9.75 in., 10.25 in., and 10.5 in. ring gear configurations depending on the vehicle and axle setup. Timken HM89411 is a direct-fit service part for many Ford F-150 rear outer differential pinion race applications and Lincoln Navigator rear outer pinion bearing service.

What It Helps Address

• Noise from a worn or pitted differential pinion race
• Excessive bearing play in the rear axle pinion assembly
• Rough operation caused by damaged tapered roller bearing surfaces
• Premature wear in Ford and Lincoln rear differential service
• Incorrect pinion bearing support during axle rebuilds

Installation Notes and Tips

Verify axle and ring gear size before ordering, since fitment varies by model year and differential configuration. This part fits 2018-2020 Ford Expedition, rear outer; 2003-2020 Lincoln Navigator, rear outer; 2000-2014 Ford F-150, rear outer; and additional Ford van and Super Duty applications listed in the fitment data. During installation, inspect the matching cone and replace both bearing components together to help ensure proper contact and service life. Confirm the bearing seat is clean and free of scoring before pressing in the new race.

Quality Assurance

Timken is recognized globally for tapered roller bearing engineering and technical support. HM89411 is built to Timken dimensional standards for differential pinion service and is backed by the brand’s established bearing manufacturing expertise.