National 710828 Steering Knuckle Seal - Front

Steering Knuckle Seal for Ford Front Suspension

National 710828 is a steering knuckle seal built for front suspension applications on select Ford F-150 and F-150 Heritage models. It uses nitrile construction and OE-style dimensions to support a precise seal at the knuckle area where the shaft, housing bore, and outside diameter must align correctly.

Fits 1997-2000 Ford F-150, front; Fits 2001-2003 Ford F-150, front; Fits 2004 Ford F-150 Heritage, front.

Key Features

• Nitrile material for sealing performance in steering and suspension service
• Outside diameter: 3.693 in. / 93.800 mm
• Flanged outside diameter: 3.875 in. / 98.420 mm
• Housing bore: 3.685 in. / 93.600 mm
• Shaft size: 2.992 in. / 76.000 mm
• Overall width with side lip: 0.650 in. / 16.510 mm
• Width: 0.343 in. / 8.700 mm
• National 710828 part number for direct catalog lookup

Detailed Description

National 710828 is an oil seal listed in the steering gaskets and sealing systems category and used as a steering knuckle seal for front suspension service. The seal dimensions are specified for a controlled fit at the housing bore and shaft interface, helping maintain the sealing surface geometry required in Ford independent front suspension designs. This part is a strong match for Ford F-150 front applications from 1997-2004, including 1997-2000 Ford F-150 with Ford Design, 2001-2003 Ford F-150 with Visteon Design, and 2004 Ford F-150 Heritage with Visteon Design. National 710828 is also a useful reference when searching by part number or by Ford F-150 front steering knuckle seal fitment.

National has supplied sealing solutions for decades and applies that experience to current vehicle service needs. This part cross-references SKF 29860 for the same application.

What It Helps Address

• Oil seepage at the steering knuckle seal area
• Contamination entering the sealed suspension interface
• Wear-related sealing loss around the shaft and housing bore
• Service replacement needs on Ford F-150 front independent suspension assemblies
• Fitment matching for Ford F-150 Heritage front steering knuckle seal repairs

Installation Notes and Tips

Confirm the housing bore, shaft diameter, and seal width before installation so the seal matches the suspension design exactly. Clean the bore and sealing surfaces thoroughly, and inspect adjacent components for wear or scoring that could affect sealing performance. Verify whether the vehicle uses Ford Design or Visteon Design front suspension hardware before ordering National 710828.

Quality Assurance

National is recognized for sealing products and has supported the aftermarket for more than 75 years. The 710828 steering knuckle seal reflects that sealing-focused engineering approach and is built to meet the dimensional requirements listed for the specified Ford front suspension applications.