National 710453 Axle Spindle Seal - Front Inner

Axle Spindle Seal for Front Inner Applications

The National 710453 axle spindle seal is an oil seal built for front inner driveline service on select Ford and Mazda vehicles. It is specified with a polyacrylate sealing material, a 2.815-inch outside diameter, and a 1.890-inch shaft size for the listed applications.

Use this seal when servicing front inner axle areas on 1993-1997 Ford Ranger, 1993-1996 Ford Bronco, 1993-1996 Ford F-150, 1993-1994 Ford Explorer, and select Mazda B-Series and Navajo models. National 710453 is also cross-referenced to Continental 49299.

Key Features

• Part type: axle spindle seal / oil seal
• Brand: National
• Part number: 710453
• Material: polyacrylate
• Housing bore: 2.810 in. / 71.370 mm
• Outside diameter: 2.815 in. / 71.500 mm
• Shaft size: 1.890 in. / 48.010 mm
• Overall width with side lip: 0.700 in. / 17.780 mm
• Width: 0.433 in. / 11.000 mm
• Series: 710400

Detailed Description

National 710453 is an axle spindle oil seal engineered for front inner positions where the housing bore, shaft diameter, and seal width must match the original service dimensions. The listed measurements and Type 40 construction support accurate replacement selection for driveline and axle sealing work. This part number is used in front inner applications on Ford Ranger, Ford Bronco, Ford F-150, Ford Explorer, Mazda B2300, Mazda B3000, Mazda B4000, and Mazda Navajo models with the specified axle and ring gear configurations.

National has supplied sealing products for more than 75 years and continues to develop sealing solutions for modern vehicle service needs. If you are replacing a leaking front inner axle seal on a Ford Ranger or servicing the front axle on a Ford F-150, this seal provides the dimensional match needed for the listed fitments. This part cross-references Continental 49299 for the same application.

What This Seal Helps Address

• Front inner axle oil seepage at the spindle area
• Contamination entering the axle housing through a worn seal
• Fluid loss from a damaged or hardened oil seal
• Noise or wear caused by inadequate axle sealing
• Service replacement for worn front inner seals on Ford and Mazda driveline assemblies

Installation Notes and Tips

Confirm the housing bore, shaft diameter, and seal width before installation. This seal is listed for front inner positions only and must be matched to the correct axle type and ring gear specification, including Spicer 28, Spicer 35, or Spicer 44 applications as noted in the fitment data. Inspect the spindle, sealing surface, and surrounding components for wear or scoring before installing the new seal.

• Fits 1993-1997 Ford Ranger, Front Inner, with Spicer 35 Axle(s); with 7.59 in ring gear; Independent Front Suspension
• Fits 1993-1997 Ford Ranger, Front Inner, Fits with Spicer 28 Axle(s) and 6.85 in ring gear, Independent Front Suspension
• Fits 1994-1997 Mazda B2300, Front Inner, Fits with Spicer 28 Axle(s) and 6.85 in ring gear, Independent Front Suspension
• Fits 1994-1997 Mazda B3000, Front Inner, Fits with Spicer 28 Axle(s) and 6.85 in ring gear, Independent Front Suspension
• Fits 1994-1997 Mazda B4000, Front Inner, with Spicer 35 Axle(s); with 7.59 in ring gear; Independent Front Suspension
• Fits 1993-1996 Ford Bronco, Front Inner, with Spicer 44 Axle(s); with 8.5 in ring gear; Independent Front Suspension
• Fits 1993-1996 Ford F-150, Front Inner, with Spicer 44 Axle(s); with 8.5 in ring gear; Independent Front Suspension
• Fits 1993-1994 Ford Explorer, Front Inner, with Spicer 35 Axle(s); with 7.59 in ring gear; Independent Front Suspension
• Fits 1993-1994 Mazda Navajo, Front Inner, with Spicer 35 Axle(s); with 7.59 in ring gear; Independent Front Suspension

Quality Assurance

National sealing products are backed by a long history in the aftermarket and are built around application-specific dimensions for service accuracy. The 710453 part number is manufactured to match the listed bore, shaft, and width specifications for the confirmed Ford Ranger, Ford F-150, and Mazda B-Series fitments.