ACDelco 8660S Crankshaft Front Oil Seal is designed as an application-specific service replacement that supports proper fit, function, and system integration. Supports dependable engine sealing, airflow, lubrication, valvetrain, or rotating-assembly operation as applicable. Verify vehicle fitment and system configuration before installation.

ACDelco 8660S Features:

• Application-specific design helps maintain correct fit and function during engine service
• Service sealing component for compatible vehicle repair
• Housing Bore: 2.296 in.
• Inside Diameter: 1.399 in.
• Shaft Diameter: 1.99 in.

ACDelco 8660S Fitment:

• 1963-1976 Plymouth Valiant
• 1964-1968 Chevy Chevy II
• 1964-1970 Chevy G10 Van
• 1964-1967 Chevy P10 Series
• 1964-1972 Chevy Chevelle
• 1964-1965 GMC 1000 Series
• 1964-1971 Pontiac Acadian
• 1964-1969 Pontiac Beaumont
• 1965-1974 Plymouth Satellite
• 1965-1967 Plymouth Belvedere II
• 1965-1987 Chevy El Camino
• 1965-1985 Chevy Impala
• 1965 Pontiac Laurentian
• 1966 GMC 1000/PB15 Series
• 1967-1971 Plymouth GTX
• 1967-1970 Chevy P10 Van & GMC G15/G1500 Van
• 1967-2002 Chevy Camaro
• 1967-1972 GMC P15/P1500 Van
• 1967 Mercury Brougham
• 1967-1974 Mercury Colony Park/Marquis
• 1968-1971 Plymouth Road Runner
• 1968-1969 Buick Skylark
• 1968 Mercury Montclair/Park Lane
• 1969-1970 Dodge Charger/Coronet/Monaco & Mercury Marauder
• 1969-1971 Plymouth Fury/Fury I/Fury II/Fury III
• 1969 Buick GS 350/GS 400
• 1969-1979 Chevy Nova
• 1970-1974 Dodge Challenger
• 1970-1972 Buick GS/GS 455 & Plymouth Cuda & Pontiac LeMans
• 1970 Chevy Monte Carlo & Plymouth Superbird & Pontiac Tempest
• 1970-1973 Pontiac GTO
• 1970-2002 Pontiac Firebird
• 1970-1987 Pontiac Grand Prix
• 1971-1972 Plymouth Scamp
• 1971-1977 Chevy Vega & GMC Sprint & Pontiac Ventura
• 1973-1981 Chrysler Newport/Town & Country & Oldsmobile Cutlass
• 1973-1976 Dodge Dart
• 1973-1975 Buick Apollo
• 1973-1988 Oldsmobile Cutlass Supreme
• 1973-1979 Oldsmobile Omega
• 1975-1976 Plymouth Duster/Scamp
• 1975-1978 Ford Granada & Mercury Monarch & Plymouth Fury
• 1975-1980 Buick Skyhawk & Chevy Monza & Oldsmobile Cutlass Salon/Starfire
• 1975-1979 Buick Skylark
• 1975 Chevy Malibu
• 1975-1977 Pontiac Astre
• 1976-1980 Dodge Aspen & Plymouth Volare & Pontiac Sunbird
• 1976-1979 Cadillac Seville
• 1976-1977 Chevy Chevelle
• 1976 Oldsmobile Cutlass Tiara
• 1977 Dodge Royal Monaco & Plymouth Gran Fury
• 1977-1984 Cadillac Commercial Chassis/DeVille & Oldsmobile 98
• 1977-1986 Cadillac Fleetwood
• 1977-1983 Pontiac Grand LeMans
• 1977-1979 Pontiac Phoenix
• 1978-1979 Dodge Challenger
• 1978-1981 Buick Century & Pontiac LeMans
• 1978-1987 Buick Regal & GMC Caballero
• 1978-1983 Chevy Malibu & Ford Fairmont & Mercury Zephyr
• 1978-1988 Chevy Monte Carlo
• 1978-1984 Oldsmobile Cutlass Calais
• 1978-1980 Pontiac Grand Am
• 1979-1981 Dodge St. Regis
• 1979-1986 Mercury Capri/Marquis
• 1980-1984 Plymouth Gran Fury
• 1980-1983 Lincoln Mark VI & Oldsmobile Cutlass Cruiser
• 1980-1986 Ford LTD
• 1980-1982 Ford Granada
• 1980 Lincoln Continental
• 1980-2011 Mercury Grand Marquis
• 1980-1988 Mercury Cougar
• 1981-1983 Chrysler Imperial & Dodge Mirada
• 1981-2010 Lincoln Town Car
• 1982 Chrysler New Yorker
• 1982-1984 Plymouth Caravelle
• 1982-1987 Buick Electra & Lincoln Continental
• 1982-1983 Buick Estate Wagon
• 1982-1990 Buick LeSabre & GMC S15
• 1982-1996 Chevy Caprice
• 1982-2004 Chevy S10
• 1982-1985 Oldsmobile Delta 88
• 1982-1986 Pontiac Bonneville/Parisienne
• 1983-1984 Chrysler Fifth Avenue
• 1983-1994 Chevy S10 Blazer
• 1983-1991 GMC S15 Jimmy
• 1983-2012 Ford Ranger
• 1984 Dodge Diplomat
• 1984-1990 Ford Bronco II
• 1984-2004 Ford Mustang
• 1984-1992 Lincoln Mark VII
• 1985-1986 Oldsmobile Cutlass
• 1985-1987 Oldsmobile Cutlass Salon
• 1986-1997 Ford Aerostar
• 1987-1992 Cadillac Brougham
• 1987-1991 Avanti II & Ford Country Squire/LTD Crown Victoria & Mercury Colony Park
• 1990-2001 Jeep Cherokee
• 1990-1992 Jeep Comanche
• 1990-1991 Jeep Grand Wagoneer
• 1990 Jeep Wagoneer
• 1990-1995 Jeep Wrangler
• 1991-2004 Ford Grand Marquis & GMC Sonoma
• 1991 GMC Syclone
• 1992-1996 Buick Roadmaster & Cadillac Commercial Chassis
• 1992-1993 GMC Typhoon
• 1992-1994 Oldsmobile Bravada
• 1992-2011 Ford Crown Victoria
• 1993-1998 Jeep Grand Cherokee
• 1993 Jeep Grand Wagoneer
• 1994-1996 Chevy Impala
• 1994 Mazda B2300
• 1994-2010 Mazda B4000
• 1995-2005 Chevy Blazer
• 1996-2000 Isuzu Hombre
• 1996-2001 Oldsmobile Bravada
• 1997-2014 Jeep Wrangler
• 1997 Mazda B2300
• 1998-2001 Mazda B2500
• 1998-2008 Mazda B3000
• 1999-2005 GMC Jimmy
• 2001-2004 Avanti II
• 2001-2010 Mazda B2300
• 2003-2004 Mercury Marauder

ACDelco 8660S Notes:

• Verify vehicle application, position, and system configuration before installation.