NATIONAL SEALS part description

Product Description

Engine Harmonic Balancer Repair Sleeve

Application Summary

1979-1981 Buick Century; 1980 Buick Electra; 1980 Buick Estate Wagon; 1975-1980 Buick LeSabre; 1979-1981 Buick Regal; 1977 Buick Skylark; 1970-1974 Stutz Blackhawk; 1975 Oldsmobile 98; 1975 Oldsmobile Custom Cruiser; 1975-1979 Oldsmobile Delta 88; 1964-1973 Pontiac GTO; 1967-1981 Pontiac Laurentian; 1958 Pontiac Chieftain; 1958-1966 Pontiac Star Chief; 1958 Pontiac Super Chief; 1967-1970 Pontiac Executive; 1958-1981 Pontiac Bonneville; 1958-1981 Pontiac Catalina; 1967-1981 Pontiac Firebird; 1973-1980 Pontiac Grand Am; 1975-1981 Pontiac Grand LeMans; 1962-1981 Pontiac Grand Prix; 1971-1978 Pontiac Grand Safari; 1971-1975 Pontiac Grandville; 1963-1981 Pontiac LeMans; 1967-1981 Pontiac Parisienne; 1960-1977 Pontiac Ventura; 1961-1970 Pontiac Tempest

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

4138 1.866 IN
4138 47.400 MM
Maximum Shaft Diameter 1.872 IN
3121 47.550 MM
Flanged Outside Diameter 2.187 in
Flanged Outside Diameter 55.550 mm
Width 1.025 IN
Width 26.040 MM
Width On Shaft 0.889 IN
Width On Shaft 22.580 MM
Installation Depth 1.000 IN
Installation Depth 25.400 MM
Material Stainless Steel
Unit of Dimension Inch
Part Description Harmonic Balancer Sleeve
Grade Type Premium

Additional Information

Country of Origin (Primary) US
Harmonized Tariff Code (Schedule B) 7307290090
Harmonized Tariff Code (HTS) 7307290090
Canadian Harmonizing Tariff Code 7307290000
UPC 00724956512102

Part Interchanges

Fits Vehicles

  • Pontiac Grand LeMans (1975-1977, 1979-1981)
  • Oldsmobile Delta 88 (1975, 1979)
  • Oldsmobile Custom Cruiser (1975)
  • Oldsmobile 98 (1975)
  • Buick Skylark (1977)
  • Buick Regal (1979-1981)
  • Buick Estate Wagon (1980)
  • Buick LeSabre (1975, 1977-1980)
  • Buick Electra (1980)
  • Buick Century (1979-1981)
  • Pontiac Executive (1967-1970)
  • Pontiac Tempest (1961, 1963-1970)
  • Stutz Blackhawk (1970-1974)
  • Pontiac Parisienne (1967-1974, 1976-1977, 1981)
  • Pontiac Ventura (1960-1961, 1971-1975, 1977)
  • Pontiac Super Chief (1958)
  • Pontiac Star Chief (1958-1966)
  • Pontiac LeMans (1963-1977, 1979-1981)
  • Pontiac GTO (1964-1973)
  • Pontiac Grandville (1971-1975)
  • Pontiac Grand Safari (1971-1978)
  • Pontiac Grand Prix (1962-1981)
  • Pontiac Grand Am (1973-1975, 1978-1980)
  • Pontiac Chieftain (1958)
  • Pontiac Firebird (1967-1981)
  • Pontiac Catalina (1958-1981)
  • Pontiac Bonneville (1958-1981)
  • Pontiac Laurentian (1967-1974, 1976, 1981)

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