National 40286 Wheel Seal - Rear Inner

National 40286 Wheel Seal Overview

National 40286 is a wheel seal built for driveline and axle sealing applications where accurate shaft and housing dimensions matter. It uses a leather sealing material and is specified as an oil seal in the 40000 series, with dimensions that support a precise fit on the shaft and housing bore.

For buyers searching for a wheel seal for National 40286, or an oil seal for axle and driveline service, this part is built around the listed 1.625 inch shaft size and 2.750 inch housing bore. It is a practical replacement choice for service work on vehicles such as Honda Civic applications when the matching seal dimensions are required.

Key Features

• Part number: 40286
• Wheel seal / oil seal for driveline and axle sealing systems
• Leather sealing material
• Inside diameter: 1.625 in. / 41.280 mm
• Outside diameter: 2.754 in. / 69.950 mm
• Housing bore: 2.750 in. / 69.850 mm
• Shaft size: 1.625 in. / 41.280 mm
• Width: 0.250 in. / 6.350 mm
• Series: 40000, Type: 4L
• National sealing technology backed by more than 75 years of industry experience

Detailed Description

National 40286 is engineered as a compact sealing component for axle and wheel-end service, with dimensions that should be matched carefully to the shaft and housing bore during replacement. The leather construction and oil seal design support sealing performance in applications that require controlled retention of lubricant and protection against contamination. If you are sourcing a wheel seal for National 40286 or comparing it against other axle seal options, the listed measurements provide the key reference points for fitment verification. This part cross-references Continental 40286 and BBB Industries 16362 for the same application.

Searches for Honda Civic wheel seal replacement, National 40286 oil seal, and driveline sealing parts often center on exact size matching. Use the shaft, outside diameter, housing bore, and width specifications to confirm the correct service part before installation.

Common Service Issues Addressed

• Gear oil or lubricant seepage at the wheel-end seal area
• Contamination entering the axle or hub sealing surface
• Wear-related sealing loss from an aged or hardened seal
• Noise or service concerns caused by inadequate lubricant retention
• Replacement needs during axle, hub, or driveline maintenance

Installation Notes and Tips

Confirm the shaft diameter, housing bore, outside diameter, and seal width before installation. Clean the sealing surfaces thoroughly and inspect the shaft for scoring or wear that could affect seal life. For best results, compare the removed seal to National 40286 and verify the application by dimensions, especially when servicing Honda Civic wheel seal or similar driveline sealing applications.

Quality Assurance

National has supplied sealing solutions for more than 75 years and continues to develop products for modern vehicle service needs. National 40286 reflects that focus with a dimension-specific design intended for accurate replacement in axle and wheel sealing applications.