FEDERAL MOGUL-NATIONAL SEALS part description

National® harmonic balancer sleeves are designed to prevent leaks associated with your timing cover seal.
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 70 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
  • Made of stainless steel
  • Designed to prevent the leaks associated with timing cover seal
  • Takes up the gaps caused by worn-out harmonic balancer shafts

Part Specifications

NATIONAL HARMONIC BALANCER
Part Description Harmonic Balancer Sleeve
Shaft Size Minimum (Inch) 1.997
Shaft Size Minimum (MM) 50.720
Shaft Size Maximum (Inch) 2.003
Shaft Size Maximum (MM) 50.880
Width (Inch) 0.563
Width (MM) 14.300
Overall Width (Inch) 0.688
Overall Width (MM) 17.480
Flanged Outside Diameter (Inch) 2.406
Flanged Outside Diameter (MM) 61.110
Installation Depth (Inch) 1
Installation Depth (MM) 25.400
Material Stainless Steel

Product Description

Harmonic Balancer Sleeve

Application Summary

2013-2014 SRT Viper; 1967-1973 Triumph GT6; 1968 Triumph TR250; 1967 Triumph 2000; 1973-1980 Triumph Spitfire; 1968-1976 Triumph TR6; 1980-1982 Checker Marathon; 1969-1971 Jaguar XJ; 1967-1968 Jaguar 420; 1964-1966 Jaguar Mark X; 1965-1971 Jaguar XKE; 1982-1987 Jaguar Vanden Plas; 1972-1987 Jaguar XJ6; 1999-2000 Shelby Series 1; 2004-2006 Dodge Ram 1500; 1994-2003 Dodge Ram 2500; 1994-2003 Dodge Ram 3500; 1992-2017 Dodge Viper; 1975 Buick Apollo; 1977-1981 Buick Century; 1977-1989 Buick Electra; 1977-1983 Buick Estate Wagon; 1977-1990 Buick LeSabre; 1977-1987 Buick Regal; 1977-1985 Buick Riviera; 1975-1977 Buick Skylark; 2004-2005 Cadillac SRX; 2005 Cadillac STS; 1985-1993 Cadillac Commercial Chassis; 1987-1993 Cadillac Allante; 1979-2005 Cadillac DeVille; 1979-2002 Cadillac Eldorado; 1979-1992 Cadillac Fleetwood; 1993 Cadillac 60 Special; 1987-1990 Cadillac Brougham; 1976-2004 Cadillac Seville; 2004-2005 Cadillac XLR; 1978-1981 Chevrolet C10; 1978-1980 Chevrolet C10 Suburban; 1978 Chevrolet C30; 1980-1990 Chevrolet Caprice; 1983-1984 Chevrolet El Camino; 1980-1985 Chevrolet Impala; 1982-1983 Chevrolet Malibu; 1982-1984 Chevrolet Monte Carlo; 1973-1974 GMC Transmode; 1979-1981 GMC C1500; 1979-1981 GMC C1500 Suburban; 1980 GMC C2500 Suburban; 1978 GMC C15; 1978 GMC C15 Suburban; 1983-1984 GMC Caballero; 1966-1967 Daimler Sovereign; 1972-1974 TVR 2500; 1972-1977 TVR 2500M; 1964-1971 Oldsmobile 442; 1965-1984 Oldsmobile 98; 1967-1968 Oldsmobile Delmont 88; 1965-1966 Oldsmobile Dynamic 88; 1964-1972 Oldsmobile F85; 1964-1966 Oldsmobile Jetstar 88; 1995-2003 Oldsmobile Aurora; 1978-1984 Oldsmobile Cutlass Calais; 1971-1990 Oldsmobile Custom Cruiser; 1964-1981 Oldsmobile Cutlass; 1975-1987 Oldsmobile Cutlass Salon; 1976 Oldsmobile Cutlass Tiara; 1980-1983 Oldsmobile Cutlass Cruiser; 1967-1988 Oldsmobile Cutlass Supreme; 1965-1985 Oldsmobile Delta 88; 1999-2002 Oldsmobile Intrigue; 1973-1977 Oldsmobile Omega; 1965-1966 Oldsmobile Starfire; 1966-1985 Oldsmobile Toronado;...

Features & Benefits

  • Made of stainless steel
  • Designed to prevent timing cover seal leaks
  • Takes up gaps caused by worn-out harmonic balancer shafts

Product Attributes

Material Nickel Plated Formed Steel
Flanged Outside Diameter (inch) 2.406 IN
Flanged Outside Diameter (mm) 61.110 MM
Installation Depth (inch) 1.000 IN
Installation Depth (mm) 25.400 MM
Overall Width (inch) 0.688 IN
Overall Width (mm) 17.480 MM
Part Description Harmonic Balancer Sleeve
Shaft Size Maximum (inch) 2.003 IN
Shaft Size Maximum (mm) 50.880 MM
Shaft Size Minimum (inch) 1.997 IN
Shaft Size Minimum (mm) 50.720 MM
Unit of Dimension Inch
Width (inch) 0.563 IN
Width (mm) 14.300 MM

Additional Information

Country of Origin (Primary) US
Harmonized Tariff Code (Schedule B) 7307290090
Harmonized Tariff Code (HTS) 7307290090
UPC 00724956512140

Part Interchanges

Fits Vehicles

  • Ford Ranger (1983-1984)
  • Pontiac Ventura (1975-1977)
  • Pontiac Safari (1987-1989)
  • Pontiac Phoenix (1977)
  • Pontiac LeMans (1976-1977)
  • Pontiac Grand Prix (1977, 1981-1984)
  • Pontiac Firebird (1977-1979)
  • Pontiac Catalina (1977-1981)
  • Oldsmobile Intrigue (1999-2002)
  • Oldsmobile Cutlass Cruiser (1980-1983)
  • Oldsmobile Cutlass Calais (1978-1984)
  • Oldsmobile Cutlass Tiara (1976)
  • Oldsmobile Cutlass Salon (1975-1980, 1985-1987)
  • Oldsmobile Aurora (1995-1999, 2001-2003)
  • GMC Caballero (1983-1984)
  • GMC C2500 Suburban (1980)
  • GMC C1500 Suburban (1979-1981)
  • GMC C15 Suburban (1978)
  • GMC C1500 (1979-1981)
  • GMC C15 (1978)
  • Chevrolet Monte Carlo (1982-1984)
  • Chevrolet Malibu (1982-1983)
  • Chevrolet Impala (1980-1985)
  • Chevrolet El Camino (1983-1984)
  • Chevrolet Caprice (1980-1990)
  • Chevrolet C30 (1978)
  • Chevrolet C10 Suburban (1978-1980)
  • Chevrolet C10 (1978-1981)
  • Cadillac Brougham (1987-1990)
  • Cadillac 60 Special (1993)
  • Cadillac Fleetwood (1979-1992)
  • Cadillac Eldorado (1979-2002)
  • Cadillac Commercial Chassis (1985-1993)
  • Cadillac Allante (1987-1993)
  • Buick Skylark (1975-1977)
  • Buick Riviera (1977-1985)
  • Buick Regal (1977, 1981-1987)
  • Buick LeSabre (1977-1986, 1988-1990)
  • Buick Estate Wagon (1977-1983)
  • Buick Electra (1977-1989)
  • Buick Century (1977, 1981)
  • Buick Apollo (1975)
  • Dodge Ram 3500 (1994-2003)
  • Dodge Ram 2500 (1994-2003)
  • Shelby Series 1 (1999-2000)
  • Jaguar Vanden Plas (1982-1987)
  • Checker Marathon (1980-1982)
  • SRT Viper (2013-2014)
  • GMC Transmode (1973-1974)
  • Jaguar XJ (1969-1971)
  • Triumph 2000 (1967)
  • TVR 2500M (1972-1977)
  • TVR 2500 (1972-1974)
  • Daimler Sovereign (1966-1967)
  • Oldsmobile Jetstar I (1965)
  • Pontiac Bonneville (1977-1984, 2004-2005)
  • Cadillac XLR (2004-2005)
  • Cadillac STS (2005)
  • Pontiac Grand Safari (1977-1978)
  • Dodge Viper (1992-2006, 2008-2010, 2015-2017)
  • Dodge Ram 1500 (2004-2006)
  • Cadillac SRX (2004-2005)
  • Cadillac Seville (1976-2004)
  • Cadillac DeVille (1979-2005)
  • Mazda B2200 (1982-1984)
  • Pontiac Parisienne (1980-1986)
  • Triumph TR6 (1968-1976)
  • Triumph TR250 (1968)
  • Triumph Spitfire (1973-1980)
  • Triumph GT6 (1967-1973)
  • Oldsmobile Vista Cruiser (1964-1975)
  • Oldsmobile Toronado (1966-1985)
  • Oldsmobile Starfire (1965-1966)
  • Oldsmobile Omega (1973-1977)
  • Oldsmobile Jetstar 88 (1964-1966)
  • Oldsmobile F85 (1964-1972)
  • Oldsmobile Dynamic 88 (1965-1966)
  • Oldsmobile Delta 88 (1965-1985)
  • Oldsmobile Delmont 88 (1967-1968)
  • Oldsmobile Cutlass Supreme (1967-1988)
  • Oldsmobile Cutlass (1964-1981)
  • Oldsmobile Custom Cruiser (1971-1990)
  • Oldsmobile 98 (1965-1974, 1976-1984)
  • Oldsmobile 442 (1964-1971)
  • Jaguar XKE (1965-1971)
  • Jaguar XJ6 (1972-1987)
  • Jaguar Mark X (1964-1966)
  • Jaguar 420 (1967-1968)
  • Pontiac Laurentian (1981)
  • Pontiac Grand LeMans (1976-1977, 1982-1983)
  • MG Midget (1975-1979)

The National Seals® is a proud designer and supplier of wheel bearings and oil seals with a focus on quality, safety, and continuous improvement. The key to its success may be attributed to its hardworking and dedicated team of engineers who keep pace with the industry to provide premium wheel end solutions for light and commercial vehicle applications. Federal-Mogul acquired the National Seal Division of the National Motor Bearing Company only in 1942. But the brand National Seals has already cemented itself as one of the most respected names in the industry. Over the years, it has remained fully committed to providing only the highest quality seals and bearings that meet or exceed OE specifications.

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