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National 9406S Wheel Seal - Front InnerOE Quality 60-Day Returns
Part #: 9406S

National 9406S Wheel Seal - Front Inner

Front Inner
39 vehicles fit this part
Select your vehicle to confirm fitment
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Fitment: Cadillac, Chevrolet, and Pontiac, Bel Air, Caprice, Commercial Chassis, Corvette, DeVille, Fleetwood, Impala, Laurentian, and Parisienne
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National 9406S Wheel Seal Overview

The National 9406S wheel seal is engineered to provide reliable sealing performance for driveline and axle applications. Designed with precision to fit specific Cadillac, Chevrolet, and Pontiac models, this oil seal helps maintain proper lubrication and prevent contamination.

  • Inside diameter: 2.000 inches (50.8 mm)
  • Outside diameter: 2.629 inches (66.78 mm)
  • Housing bore: 2.625 inches (66.68 mm)
  • Width: 0.285 inches (7.24 mm)
  • Material: Durable nitrile for resistance to oil and wear
  • Type: 279 series oil seal

Detailed Product Description

The National 9406S wheel seal is part of the 9000 series, designed specifically for driveline and axle sealing systems. Constructed from nitrile material, it offers excellent resistance to oil, grease, and other automotive fluids, ensuring long-lasting performance. The seal’s dimensions, including a 2.000-inch inside diameter and a 2.629-inch outside diameter, make it compatible with shafts and housings commonly found in select Cadillac, Chevrolet, and Pontiac vehicles. Its precise fit helps prevent leaks and contamination, which can lead to premature wear of axle components.

Compatible Vehicles and Applications

This wheel seal is compatible with various models, including:

  • Cadillac DeVille, Fleetwood
  • Chevrolet Bel Air, Caprice, Commercial Chassis, Corvette, Impala
  • Pontiac Laurentian, Parisienne

It is designed to maintain axle integrity and protect driveline components in these vehicles by providing a secure seal around the shaft and housing bore.

Common Issues Addressed by the National 9406S Wheel Seal

  • Prevents oil leaks from axle assemblies
  • Protects against dirt and debris contamination
  • Reduces premature wear of axle bearings and shafts
  • Maintains proper lubrication within the driveline system
  • Helps avoid costly repairs due to seal failure

Installation Notes and Tips

When installing the National 9406S wheel seal, ensure the shaft and housing bore are clean and free of debris. Use appropriate tools to press the seal evenly into the housing bore without damaging the sealing lip. Verify the seal orientation matches the original part to maintain proper sealing function. Avoid using excessive force during installation to prevent distortion or damage.

Quality Assurance and Warranty

National manufactures the 9406S wheel seal to meet industry standards for durability and performance. Made from high-quality nitrile material, this seal is designed to withstand typical automotive operating conditions. While specific warranty details are not provided, National products generally adhere to strict quality control processes to ensure reliability in driveline applications.

BrandNational
Part Number9406S
Inside Diameter2.000
Inside Diameter50.800
Outside Diameter2.629
Outside Diameter66.780
Housing Bore (Inch)2.625
Housing Bore (MM)66.680
MaterialNitrile
Outside Diameter (Inch)2.629
Outside Diameter (mm)66.780
Part DescriptionOil seal
Series9000
Shaft (Inch)2.000
Shaft (MM)50.800
Type279
Unit of DimensionInch
Width (Inch)0.285
Width (mm)7.240

This part fits 39 vehicles. Search below:

YearMakeModelPositionNotes
1982ChevroletCorvetteFront Inner
1981ChevroletCorvetteFront Inner
1980ChevroletCorvetteFront Inner
1979ChevroletCorvetteFront Inner
1978ChevroletCorvetteFront Inner
1977ChevroletCorvetteFront Inner
1976ChevroletCorvetteFront Inner
1975ChevroletCorvetteFront Inner
1974ChevroletCorvetteFront Inner
1973ChevroletCorvetteFront Inner
1972ChevroletCorvetteFront Inner
1971CadillacDeVilleFront Inner
1971CadillacFleetwoodFront Inner
1971ChevroletCorvetteFront Inner
1970CadillacDeVilleFront Inner
1970CadillacFleetwoodFront Inner
1970ChevroletBel AirFront Inner
1970ChevroletCapriceFront Inner
1970ChevroletCorvetteFront Inner
1970ChevroletImpalaFront Inner
1970PontiacLaurentianFront Inner
1970PontiacParisienneFront Inner
1969CadillacCommercial ChassisFront Inner
1969CadillacDeVilleFront Inner
1969CadillacFleetwoodFront Inner
1969ChevroletBel AirFront Inner
1969ChevroletCapriceFront Inner
1969ChevroletCorvetteFront Inner
1969ChevroletImpalaFront Inner
1969PontiacLaurentianFront Inner
1969PontiacParisienneFront Inner
1968CadillacCommercial ChassisFront InnerCompatible with vehicles equipped with disc brakes.
1968CadillacDeVilleFront InnerCompatible with vehicles equipped with disc brakes.
1968CadillacFleetwoodFront InnerCompatible with vehicles equipped with disc brakes.
1968ChevroletBel AirFront InnerCompatible with vehicles equipped with disc brakes.
1968ChevroletCapriceFront InnerCompatible with vehicles equipped with disc brakes.
1968ChevroletImpalaFront InnerCompatible with vehicles equipped with disc brakes.
1968PontiacLaurentianFront InnerCompatible with vehicles equipped with disc brakes.
1968PontiacParisienneFront InnerCompatible with vehicles equipped with disc brakes.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1230390714888831494465197682620403290-893953412417.6200852-21-0410640689406ST3911

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.