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National 8705S Wheel Seal - Front InnerOE Quality 60-Day Returns
Part #: 8705S

National 8705S Wheel Seal - Front Inner

Front Inner
114 vehicles fit this part
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Fitment: Buick, Chevrolet, Oldsmobile, Pontiac, and GMC, Skyhawk, Monza, Starfire, Sunbird, Vega, Astre, Apollo, Nova, Omega, Ventura, GS, GS 455, Skylark, Sportwagon, Chevelle, El Camino, Monte Carlo, Sprint, Cutlass, Cutlass Supreme, F85, Vista Cruiser, Grand Prix, GTO, LeMans, 442, Acadian, G10 Van, G15/G1500 Van, Tempest, GS 350, GS 400, Special, Camaro, Corvair, Beaumont, Firebird, Chevy II, Gran Sport, Bel Air, Biscayne, Caprice, Impala, Malibu, Laurentian, Parisienne, Jetstar 88, and Jetstar I
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National 8705S Wheel Seal for Front Inner Applications

National 8705S is a wheel seal built for front inner positions on a wide range of classic GM and Pontiac vehicles. It uses nitrile construction and precise inch-based dimensions to support a proper seal at the hub and shaft interface.

Key Features

  • Part number: 8705S
  • Wheel seal / oil seal design for driveline and axle sealing applications
  • Nitrile material for sealing performance in wheel-end service
  • Inside diameter: 1.734 in. / 44.040 mm
  • Outside diameter: 2.405 in. / 61.090 mm
  • Housing bore: 2.400 in. / 60.960 mm
  • Width: 0.230 in. / 5.840 mm
  • Series 8000, Type 277

Detailed Description

National 8705S is a front inner wheel seal engineered for vehicles that require a 1.734-inch shaft diameter and a 2.405-inch outer diameter. The nitrile sealing material is selected for wheel-end service where consistent contact and dimensional accuracy matter. National has supplied sealing solutions for more than 75 years, and this seal reflects that focus on fit and function for older passenger cars and light-duty applications. This part cross-references Bosch 17187 for the same application.

Fitment includes 1964-1972 Buick Skylark, front inner; 1964-1972 Chevrolet El Camino, front inner; 1967-1969 Chevrolet Camaro, front inner; 1968-1972 Pontiac GTO, front inner; and 1969-1972 Oldsmobile Cutlass Supreme, front inner. It also applies to additional front inner applications on Chevrolet Nova, Pontiac LeMans, and other listed models. If you are servicing a Chevrolet Camaro, Pontiac Firebird, or Buick Skylark front hub, National 8705S provides the dimensional match needed for the seal location.

Common Uses

  • Oil seepage at the wheel-end seal area
  • Contamination entering the hub or bearing area
  • Wear-related sealing loss at the front inner position
  • Service replacement during brake or hub maintenance
  • Restoration work on classic Buick, Chevrolet, Oldsmobile, and Pontiac models

Installation Notes and Tips

Confirm the shaft diameter, housing bore, and seal width before installation. Clean the bore and shaft surface thoroughly, and inspect for scoring, corrosion, or wear that could affect sealing. Verify front inner placement and confirm disc brake application where noted in the fitment data. Use the vehicle-specific dimensions rather than relying on appearance alone.

Quality Assurance

National is known for sealing products backed by long-term industry experience and ongoing design support for modern and legacy vehicles. Part number 8705S is built to the listed dimensional specifications for direct service use in confirmed applications.

BrandNational
Part Number8705S
Housing Bore (Inch)2.400
Housing Bore (MM)60.960
Inside Diameter1.734
Inside Diameter44.040
MaterialNitrile
Outside Diameter2.405
Outside Diameter61.090
Outside Diameter (Inch)2.405
Outside Diameter (mm)61.090
Part DescriptionOil Seal
Series8000
Shaft (Inch)1.734
Shaft (MM)44.040
Type277
Unit of DimensionInch
Width (Inch)0.230
Width (mm)5.840

This part fits 114 vehicles. Search below:

YearMakeModelPositionNotes
1980BuickSkyhawkFront Inner
1980ChevroletMonzaFront Inner
1980OldsmobileStarfireFront Inner
1980PontiacSunbirdFront Inner
1979BuickSkyhawkFront Inner
1979ChevroletMonzaFront Inner
1979OldsmobileStarfireFront Inner
1979PontiacSunbirdFront Inner
1978BuickSkyhawkFront Inner
1978ChevroletMonzaFront Inner
1978OldsmobileStarfireFront Inner
1978PontiacSunbirdFront Inner
1977BuickSkyhawkFront Inner
1977ChevroletMonzaFront Inner
1977OldsmobileStarfireFront Inner
1977PontiacSunbirdFront Inner
1976BuickSkyhawkFront Inner
1976ChevroletMonzaFront Inner
1976OldsmobileStarfireFront Inner
1976PontiacSunbirdFront Inner
1975BuickSkyhawkFront Inner
1975ChevroletMonzaFront Inner
1975OldsmobileStarfireFront Inner
1974ChevroletNovaFront Inner
1974OldsmobileOmegaFront Inner
1973ChevroletNovaFront Inner
1973OldsmobileOmegaFront Inner
1972BuickSkylarkFront Inner
1972ChevroletEl CaminoFront Inner
1972ChevroletMonte CarloFront Inner
1972ChevroletNovaFront Inner
1972OldsmobileCutlassFront Inner
1972OldsmobileCutlass SupremeFront Inner
1972PontiacGrand PrixFront Inner
1972PontiacGTOFront Inner
1972PontiacLeMansFront Inner
1971BuickSkylarkFront Inner
1971ChevroletEl CaminoFront Inner
1971ChevroletMonte CarloFront Inner
1971ChevroletNovaFront Inner
1971OldsmobileCutlassFront Inner
1971OldsmobileCutlass SupremeFront Inner
1971PontiacAcadianFront Inner
1971PontiacGrand PrixFront Inner
1971PontiacGTOFront Inner
1971PontiacLeMansFront Inner
1970BuickSkylarkFront Inner
1970ChevroletEl CaminoFront Inner
1970ChevroletMonte CarloFront Inner
1970ChevroletNovaFront Inner
1970GMCG15/G1500 VanFront Inner
1970OldsmobileCutlassFront Inner
1970OldsmobileCutlass SupremeFront Inner
1970PontiacAcadianFront Inner
1970PontiacGrand PrixFront Inner
1970PontiacGTOFront Inner
1970PontiacLeMansFront Inner
1970PontiacTempestFront Inner
1969BuickSkylarkFront Inner
1969ChevroletCamaroFront Inner
1969ChevroletEl CaminoFront Inner
1969ChevroletNovaFront Inner
1969GMCG15/G1500 VanFront Inner
1969OldsmobileCutlassFront Inner
1969OldsmobileCutlass SupremeFront Inner
1969PontiacAcadianFront Inner
1969PontiacFirebirdFront Inner
1969PontiacGrand PrixFront Inner
1969PontiacGTOFront Inner
1969PontiacLeMansFront Inner
1969PontiacTempestFront Inner
1968BuickSkylarkFront Inner
1968ChevroletCamaroFront Inner
1968ChevroletEl CaminoFront Inner
1968GMCG15/G1500 VanFront Inner
1968OldsmobileCutlassFront InnerCompatible with vehicles equipped with disc brakes.
1968OldsmobileCutlass SupremeFront InnerCompatible with vehicles equipped with disc brakes.
1968PontiacAcadianFront Inner
1968PontiacFirebirdFront Inner
1968PontiacGTOFront Inner
1968PontiacLeMansFront Inner
1968PontiacTempestFront Inner
1967BuickSkylarkFront Inner
1967ChevroletBel AirFront InnerCompatible with vehicles equipped with disc brakes.
1967ChevroletCamaroFront Inner
1967ChevroletCapriceFront InnerCompatible with vehicles equipped with disc brakes.
1967ChevroletEl CaminoFront Inner
1967ChevroletImpalaFront InnerCompatible with vehicles equipped with disc brakes.
1967ChevroletMalibuFront Inner
1967GMCG15/G1500 VanFront Inner
1967OldsmobileCutlassFront InnerCompatible with vehicles equipped with disc brakes.
1967OldsmobileCutlass SupremeFront InnerCompatible with vehicles equipped with disc brakes.
1967PontiacAcadianFront Inner
1967PontiacFirebirdFront InnerCompatible with vehicles equipped with disc brakes.
1967PontiacGTOFront InnerCompatible with vehicles equipped with disc brakes.
1967PontiacLaurentianFront InnerCompatible with vehicles equipped with disc brakes.
1967PontiacLeMansFront InnerCompatible with vehicles equipped with disc brakes.
1967PontiacParisienneFront InnerCompatible with vehicles equipped with disc brakes.
1967PontiacTempestFront InnerCompatible with vehicles equipped with disc brakes.
1966BuickSkylarkFront Inner
1966ChevroletEl CaminoFront Inner
1966ChevroletMalibuFront Inner
1966OldsmobileCutlassFront InnerCompatible with vehicles equipped with disc brakes.
1966PontiacAcadianFront Inner
1965BuickSkylarkFront Inner
1965ChevroletEl CaminoFront Inner
1965ChevroletMalibuFront Inner
1965OldsmobileCutlassFront InnerCompatible with vehicles equipped with disc brakes.
1965PontiacAcadianFront Inner
1964BuickSkylarkFront Inner
1964ChevroletEl CaminoFront Inner
1964ChevroletMalibuFront Inner
1964OldsmobileCutlassFront InnerCompatible with vehicles equipped with disc brakes.
1964PontiacAcadianFront Inner

* 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:

0704-673317187262038726204042620408290-25629079290902909238375603876191403899404116417.620024643952-21-021652-21-02248705S9788739GS1003T1613T3883T3946

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