SKF NP678813 Wheel Bearing - Rear Inner

SKF NP678813 Wheel Bearing for Ford F-350 Super Duty

SKF NP678813 is a tapered roller wheel bearing built for rear inner service on select Ford F-350 Super Duty applications. With a 2.500-inch inside diameter, 4.125-inch outside diameter, and 0.625-inch width, it is sized for precise wheel-end support and smooth rotation in heavy-duty driveline use.

Key Features

• Tapered roller wheel bearing for rear inner wheel-end service
• 2.500-inch inside diameter for the specified hub and spindle fit
• 4.125-inch outside diameter for accurate bearing seating
• 0.625-inch width for correct assembly dimensions
• Logarithmic roller raceway profiles and a smooth surface finish for quiet operation
• Built to SKF quality standards for long service life and safety

Detailed Description

SKF NP678813 is engineered for rear inner wheel bearing applications on the Ford F-350 Super Duty, including 2005 Ford F-350 Super Duty rear inner with dual rear wheels, 2006 Ford F-350 Super Duty rear inner with dual rear wheels through 12/5/05, and 2017-2018 Ford F-350 Super Duty rear inner with dual rear wheels. This part number, NP678813, is a tapered roller bearing design that helps maintain stable wheel-end operation under load while supporting smooth, quiet performance. SKF has supplied bearing solutions for more than a century, and this wheel bearing reflects that experience in its dimensional accuracy and finish quality.

This part cross-references Ford 5C3Z1201A for the same application.

Common Repair Symptoms

• Wheel-end noise or growling from the rear inner bearing area
• Excessive wheel play or looseness at the hub
• Rough rotation during wheel-end inspection
• Wear-related service needs on a Ford F-350 Super Duty rear axle
• Replacement after bearing contamination or heat damage

Installation Notes and Tips

Verify the rear inner position, dual rear wheel configuration, and model year before ordering. Confirm the bearing dimensions against the hub and spindle specifications, and inspect related seals, races, and wheel-end surfaces for wear before assembly. Proper cleaning, lubrication, and bearing preload or adjustment procedures should be followed according to the vehicle service manual.

Quality Assurance

SKF manufactures this wheel bearing to high quality standards with an emphasis on durability, safety, and consistent fit. The logarithmic roller raceway profile and refined surface finish are used to support smooth operation in demanding wheel-end service.