InMotion WT25590 Axle Differential Bearing

Axle Differential Bearing for Heavy-Duty Driveline Service

The InMotion WT25590 is an axle differential bearing built for driveline applications that demand stable rotation and reduced friction. With a cylindrical taper bearing design, a 1.796 in. inside diameter, and a 1 in. width, it is sized for a wide range of front and rear axle setups across Ford, Jeep, Dodge, Chevrolet, GMC, Honda, Isuzu, and Chrysler vehicles.

Use WT25590 when servicing differential and axle assemblies that require consistent bearing support in demanding automotive environments. The compact 0.337 lb. weight and 0.140 in. cone radius help make it a practical replacement for many Spicer axle configurations, including Ford F-250, Jeep Wrangler, and Dodge Ram 2500 applications.

Key Features

• Part number: WT25590
• Axle differential bearing for driveline and axle service
• Cylindrical taper bearing construction
• Inside diameter: 1.796 in. / 45.62 mm
• Width: 1 in. / 25.4 mm
• Cone radius: 0.140 in. / 3.6 mm
• Lightweight design at 0.337 lb. / 0.743 kg
• Built for smooth rotation, lower friction, and stable bearing support

Detailed Description

InMotion WT25590 is a universal-style axle differential bearing engineered for use in a broad range of automotive and industrial driveline assemblies. The bearing’s taper design supports rotational loads while helping maintain smooth operation in differential housings and axle ends. Its dimensions make it a direct service part for many vehicles using Spicer 44-series axles and related rear or front axle configurations. This part cross-references Timken SET45 for the same application.

Compatible With applications such as 2021-2022 Ford F-250 Super Duty front inner, 2012-2022 Ford F-350 Super Duty front inner, 1998-2005 Dodge Ram 2500 center, 1994-2003 Dodge Ram 1500 front with Spicer 44-3F axle, and 2003-2006 Jeep Wrangler front with Spicer 44M axle. Additional coverage includes Ford Bronco, Ford F-150, Jeep Cherokee, Jeep J10, Jeep J20, Chevrolet K10, GMC K1500, Isuzu Rodeo, Honda Passport, and Chrysler rear axle applications listed in the fitment data.

What It Helps Address

• Excess bearing wear in axle differential assemblies
• Noise or roughness from a worn taper bearing
• Loss of rotational stability in front or rear axle service
• Friction buildup in driveline components
• Service needs on Spicer 44-series and related axle setups

Installation Notes and Tips

Verify the bearing dimensions, axle type, and position before installation. This part is listed for front inner, front, center, and rear positions depending on vehicle application, so match the exact axle configuration shown in the fitment data. Clean and inspect the housing, races, and related components during service, and confirm proper bearing seating and preload according to the axle manufacturer’s procedure. For fitment examples, WT25590 is used on Ford F-250 front inner, Jeep Wrangler front with Spicer 44M axle, and Dodge Ram 3500 center applications.

Quality Assurance

InMotion supplies this bearing as a replacement driveline component for automotive and industrial use. The design focuses on durable material construction and consistent performance across multiple axle applications. Part number WT25590 is specified for broad fitment coverage from 1958 through 2022 model years.