National 1126 Wheel Seal - Front Inner or Rear Inner

National 1126 Wheel Seal Overview

National 1126 is a wheel seal built for rear inner applications on select Ford, Mazda, and Kia vehicles. It uses nitrile sealing material and precise dimensional sizing to help maintain a proper seal at the hub and axle interface.

With a 1.535 in. shaft diameter, 1.998 in. outside diameter, and 0.335 in. width, this seal is specified for vehicles such as the 2001-2005 Kia Rio, 1994-1997 Ford Aspire, 1988-1993 Ford Festiva, and 1983-1987 Mazda 626, rear inner. National 1126 is also a direct-reference option for common OE and aftermarket cross numbers in the same application.

Key Features

• Wheel seal / oil seal for driveline and axle sealing applications
• Nitrile material for sealing performance in rotating hub service
• 1.535 in. shaft diameter and 1.998 in. outside diameter
• Housing bore: 1.988 in. for accurate fitment
• Width: 0.335 in. for compact installation dimensions
• National Series 1000, Type 25 construction
• Fits rear inner positions on listed Ford, Mazda, and Kia models

Detailed Description

National 1126 is engineered as a rear inner wheel seal for specific compact and midsize applications, including the Kia Rio, Ford Aspire, Ford Festiva, and Mazda 626. The seal dimensions are listed in both inch and metric values for easier verification during service: 39.000 mm shaft diameter, 50.750 mm outside diameter, 50.500 mm housing bore, and 8.500 mm width. This makes it easier to confirm the correct seal before axle or hub service on the vehicle.

National has supplied sealing solutions for more than 75 years, and this part reflects that focus on dimensional accuracy and application-specific fitment. Part number 1126 is a practical choice when replacing a worn rear inner wheel seal on 2001-2005 Kia Rio, 1994-1997 Ford Aspire, 1988-1993 Ford Festiva, or 1983-1987 Mazda 626 models.

This part cross-references SKF 14832 and Timken 1126S for the same application.

Common Uses

• Replacing a leaking rear inner wheel seal
• Addressing grease or oil contamination near the hub
• Restoring sealing at the axle-to-hub interface
• Correcting seal wear from age, heat, or mileage
• Supporting service on rear wheel bearing and axle assemblies

Installation Notes and Tips

Verify shaft diameter, housing bore, and width against the removed seal before installation. Clean the bore and sealing surface thoroughly, and inspect the axle or hub surface for scoring or corrosion that could affect sealing performance. Confirm rear inner position fitment for the specific vehicle before assembly.

Quality Assurance

National is a long-established sealing brand with a reputation built over decades in the automotive aftermarket. Part number 1126 is manufactured to published dimensional specifications for the listed applications and is backed by National’s sealing product expertise.