National 710586 Wheel Seal - Rear Inner

National 710586 Wheel Seal for Ford E-350

National 710586 is a rear inner wheel seal built for specific Ford E-350 Super Duty and Ford E-350 Econoline applications. It uses a fluoro-elastomer sealing material and a bi-directional lip design to help maintain a reliable seal at the wheel end.

Key Features

• Part number: 710586
• Wheel seal / oil seal for driveline and axle service
• Fluoro-elastomer construction
• Bi-directional lip design
• Inside diameter: 2.870 in. / 72.900 mm
• Outside diameter: 3.881 in. / 98.580 mm
• Housing bore: 3.876 in. / 98.450 mm
• Overall width with side lip: 0.610 in. / 15.500 mm
• Width: 0.354 in. / 9.000 mm

Detailed Description

National 710586 is a rear inner wheel seal engineered for axle-end sealing on select Ford E-350 Super Duty and Ford E-350 Econoline models. The seal’s fluoro-elastomer material is selected for sealing performance, while the bi-directional lip design supports consistent contact at the shaft interface. This part number 710586 matches the dimensional requirements listed for the shaft, housing bore, and overall width, making it a direct-fit service part for the specified rear inner position.

National has focused on sealing products for decades, and this wheel seal reflects that experience with a design intended for modern vehicle service needs. This part cross-references Remy 28705 for the same application.

What It Helps Address

• Gear oil seepage at the rear inner wheel seal
• Contamination entering the axle seal area
• Seal wear from age, heat, and mileage
• Loss of sealing integrity at the wheel end
• Service replacement for worn axle-end seals on Ford E-350 models

Installation Notes and Tips

Fits 2021-2023 Ford E-350 Super Duty, Rear Inner. Fits 2015-2019 Ford E-350 Super Duty, Rear Inner, with Traction Control. Fits 2006-2014 Ford E-350 Super Duty, Rear Inner, Full-Floating; with Traction Control. Fits 2007-2008 Ford E-350 Econoline, Rear Inner, Full-Floating; with Traction Control.

Verify shaft diameter, housing bore, and seal width before installation. Clean the sealing surface and inspect the axle end, hub area, and mating surfaces for wear or damage before pressing in the new seal. Proper alignment during installation helps prevent lip distortion and premature leakage.

Quality Assurance

National is a long-established sealing brand with more than 75 years in the sealing industry. Its product development focuses on sealing solutions for current vehicle service requirements, including axle and wheel-end applications such as this National 710586 wheel seal.