ARP Harmonic Balancer Bolt Kit 12pt Head Dia: 7/16-20 Socket: 5/8

SKU: 04WP2 | MPN:  134-2501
Only 83 units left

Sale price$40.05 USD Regular price$48.43 USD

Save $8.38

As the crankshaft flexes and twists, the balancer absorbs incredible amounts of kinetic energy. To ensure that the balancer is locked in position, ARP has developed these ultra strong 200,000 psi bolts that let you exert maximum clamping force. Special features include 1/4 inch thick, wide area washer and an extra tall 12-point head that accepts a deep socket and eliminates the worry of stripping the head.

Square Drive Balancer Bolts
ARP offers a special version of its rugged 200,000 psi rated balancer bolt that can accept a standard 1/2 drive ratchet or breaker bar to facilitate rotating the crank assembly.
  • 1/2 square drive forged into bolt head, enabling the rotation of an engine with any 1/2 drive tool
  • Made from heat-treated 8740 chrome moly steel with heavyduty black oxide finish


  • Harmonic Balancer Bolt Kit 12Point Head
  • Diameter: 7/16-20
  • Socket: 5/8
  • UHL: 2.47




Vehicle Fitments:

Year Make Model Submodel
1955 - 1975 Chevrolet Bel Air Base
1955 - 1956 Chevrolet Bel Air Beauville
1955 - 1957 Chevrolet Bel Air Nomad
1970 - 1973 Chevrolet Blazer Base
1992 Chevrolet Blazer Cheyenne, Nevada
1987 Chevrolet Blazer Custom Deluxe
1989 Chevrolet Blazer Scottsdale
1987 - 1992 Chevrolet Blazer Silverado
1978 - 1980 Chevrolet C10 Big Ten
1975 - 1981 Chevrolet C10 Cheyenne
1975 - 1980 Chevrolet C10 Custom Deluxe
1981 Chevrolet C10 Deluxe
1975 - 1986 Chevrolet C10 Scottsdale, Silverado, Custom
1968 - 1973 Chevrolet C10 Suburban Base
1982 - 1986 Chevrolet C10 Suburban Custom
1976 - 1980 Chevrolet C10 Suburban Custom Deluxe
1976 - 1986 Chevrolet C10 Suburban Silverado, Scottsdale
1990 - 1993 Chevrolet C1500 454 SS
1989 - 1997 Chevrolet C1500 Base
1999 Chevrolet C1500 LS
1988 - 1992 Chevrolet C1500 Scottsdale
1988 - 1998 Chevrolet C1500 Silverado, Cheyenne
1990 - 1998 Chevrolet C1500 WT
1994 - 1998 Chevrolet C1500 Suburban Base
1996 - 1998 Chevrolet C1500 Suburban LS
1996 Chevrolet C1500 Suburban LT
1994 Chevrolet C1500 Suburban Silverado
1986 Chevrolet C20 Base
1981 - 1986 Chevrolet C20 Custom
1975 - 1980 Chevrolet C20 Custom Deluxe
1981 Chevrolet C20 Deluxe
1975 - 1986 Chevrolet C20 Silverado, Cheyenne, Scottsdale
1981 Chevrolet Camaro Berlinetta, Sport
1990 Chevrolet Camaro Iroc-Z
1990 - 1992 Chevrolet Camaro RS
1981 - 1992 Chevrolet Camaro Z28
1992 Chevrolet Camaro Z28 Heritage Edition, RS Heritage Edition
1966 - 1992 Chevrolet Caprice Base
1973 - 1993 Chevrolet Caprice Classic
1986 - 1990 Chevrolet Caprice Classic Brougham
1976 - 1982 Chevrolet Caprice Classic Estate
1976 - 1981 Chevrolet Caprice Classic Landau
1993 Chevrolet Caprice Classic LS
1987 - 1990 Chevrolet Caprice Classic LS Brougham
1991 - 1993 Chevrolet Caprice Classic LTZ
1975 - 1980 Chevrolet Caprice Classic Sport
1973 - 1974 Chevrolet Caprice Estate
1975 Chevrolet Caprice Estate Wagon
1979 Chevrolet Caprice Landau
1968 Chevrolet Chevelle 300
1968 - 1969 Chevrolet Chevelle 300 Deluxe
1965 - 1973 Chevrolet Chevelle Deluxe
1969 - 1972 Chevrolet Chevelle Greenbrier, Concours Estate
1968 - 1972 Chevrolet Chevelle Nomad, Concours, Malibu
1964 - 1972 Chevrolet Chevelle SS, Base
1965 - 1966 Chevrolet Chevy II Nova SS, Base, Nova
1955 - 1991 Chevrolet Corvette Base
1990 - 1991 Chevrolet Corvette ZR-1
1959 - 1987 Chevrolet El Camino Base
1975 - 1977 Chevrolet El Camino Classic
1977 - 1985 Chevrolet El Camino Conquista
1968 - 1974 Chevrolet El Camino Custom
1979 - 1981 Chevrolet El Camino Royal Knight
1968 - 1987 Chevrolet El Camino SS
1997 - 2001 Chevrolet Express 1500 Base, LS
2001 Chevrolet Express 1500 LT
1996 - 2002 Chevrolet Express 2500 LS, Base
1996 - 2002 Chevrolet Express 3500 Base, LS
1983 Chevrolet G10 Base
1981 - 1987 Chevrolet G10 Bonaventure
1976 - 1992 Chevrolet G10 Sportvan, Beauville, Chevy Van
1995 Chevrolet G20 Base
1983 - 1984 Chevrolet G20 Bonaventure
1978 - 1981 Chevrolet G20 Nomad
1975 - 1995 Chevrolet G20 Sportvan, Chevy Van, Beauville
1970 - 1973 Chevrolet G20 Van Sportvan, Base
1983 Chevrolet G30 Bonaventure
1975 - 1996 Chevrolet G30 Chevy Van, Beauville, Hi-Cube, Sportvan
1959 - 1985 Chevrolet Impala Base
1975 - 1977 Chevrolet Impala Custom
1976 Chevrolet Impala Custom Landau, S
1981 - 1982 Chevrolet Impala Estate
1977 - 1979 Chevrolet Impala Landau
1975 - 1980 Chevrolet Impala Sport
1964 - 1967 Chevrolet Impala SS
1975 - 1981 Chevrolet K10 Cheyenne
1981 - 1986 Chevrolet K10 Custom
1975 - 1980 Chevrolet K10 Custom Deluxe
1981 Chevrolet K10 Deluxe
1975 - 1986 Chevrolet K10 Scottsdale, Silverado
1968 - 1974 Chevrolet K10 Suburban Base
1981 - 1986 Chevrolet K10 Suburban Custom
1975 - 1980 Chevrolet K10 Suburban Custom Deluxe
1981 Chevrolet K10 Suburban Deluxe
1975 - 1986 Chevrolet K10 Suburban Silverado, Scottsdale
1994 - 1997 Chevrolet K1500 Base
1988 - 1992 Chevrolet K1500 Scottsdale
1988 - 1998 Chevrolet K1500 Silverado, Cheyenne
1991 Chevrolet K1500 Sport
1990 - 1998 Chevrolet K1500 WT
1992 - 1999 Chevrolet K1500 Suburban Base
1997 - 1999 Chevrolet K1500 Suburban LT, LS
1992 - 1994 Chevrolet K1500 Suburban Silverado
1975 - 1981 Chevrolet K20 Cheyenne
1981 - 1986 Chevrolet K20 Custom
1975 - 1980 Chevrolet K20 Custom Deluxe
1981 Chevrolet K20 Deluxe
1975 - 1986 Chevrolet K20 Scottsdale, Silverado
1969 - 1974 Chevrolet K20 Suburban Base
1985 - 1986 Chevrolet K20 Suburban Custom
1976 - 1980 Chevrolet K20 Suburban Custom Deluxe
1976 - 1986 Chevrolet K20 Suburban Silverado, Scottsdale
1994 - 2000 Chevrolet K2500 Base
1999 - 2000 Chevrolet K2500 LS
1988 - 1992 Chevrolet K2500 Scottsdale
1988 - 1998 Chevrolet K2500 Silverado, Cheyenne
1994 - 1998 Chevrolet K2500 WT
1992 - 1999 Chevrolet K2500 Suburban Base
1995 - 1999 Chevrolet K2500 Suburban LS
1995 - 1997 Chevrolet K2500 Suburban LT
1992 Chevrolet K2500 Suburban Silverado
1977 - 1981 Chevrolet K30 Cheyenne
1981 - 1986 Chevrolet K30 Custom
1977 - 1980 Chevrolet K30 Custom Deluxe
1981 Chevrolet K30 Deluxe
1977 - 1986 Chevrolet K30 Scottsdale, Silverado
1994 - 2000 Chevrolet K3500 Base
1988 - 1998 Chevrolet K3500 Cheyenne, Silverado
1999 - 2000 Chevrolet K3500 LS
1988 - 1992 Chevrolet K3500 Scottsdale
1976 Chevrolet K5 Blazer Base
1981 - 1984 Chevrolet K5 Blazer Custom
1975 - 1980 Chevrolet K5 Blazer Custom Deluxe, Cheyenne
1981 Chevrolet K5 Blazer Deluxe
1984 Chevrolet K5 Blazer Scottsdale
1978 - 1984 Chevrolet K5 Blazer Silverado
1973 - 1975 Chevrolet Laguna Base
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1975 Chevrolet Laguna S3
1974 Chevrolet Laguna Type S-3
1964 - 1981 Chevrolet Malibu Base
1974 - 1982 Chevrolet Malibu Classic
1975 - 1980 Chevrolet Malibu Classic Estate
1976 - 1981 Chevrolet Malibu Classic Landau
1973 - 1980 Chevrolet Malibu Estate
1976 - 1979 Chevrolet Malibu Landau
1979 Chevrolet Malibu Police
1977 - 1980 Chevrolet Malibu Sport, Classic Sport
1970 - 1987 Chevrolet Monte Carlo Base
1973 - 1980 Chevrolet Monte Carlo Landau
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1978 - 1980 Chevrolet Monte Carlo Sport
1984 - 1987 Chevrolet Monte Carlo SS
1978 - 1979 Chevrolet Monza 2+2 Sport
1975 - 1979 Chevrolet Monza 2+2, S
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1977 Chevrolet Monza Mirage
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1969 - 1979 Chevrolet Nova Base
1976 - 1977 Chevrolet Nova Concours
1973 - 1979 Chevrolet Nova Custom
1975 Chevrolet Nova LN
1975 - 1978 Chevrolet Nova Police
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1977 Chevrolet P10 Step-Van, Base
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1980 - 1999 Chevrolet P30 Base
1980 - 1989 Chevrolet P30 Step-Van
1987 Chevrolet R10 Scottsdale, Silverado, Custom Deluxe
1987 Chevrolet R10 Suburban Silverado, Scottsdale, Custom Deluxe
1989 Chevrolet R1500 Suburban Silverado, Scottsdale
1988 Chevrolet R20 Cheyenne
1987 - 1988 Chevrolet R20 Scottsdale, Custom Deluxe, Silverado
1988 Chevrolet R20 Suburban Silverado, Scottsdale
1991 Chevrolet R2500 Suburban Scottsdale, Silverado
1988 Chevrolet R30 Cheyenne
1987 - 1988 Chevrolet R30 Silverado, Custom Deluxe, Scottsdale
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