Autolite Single Platinum Spark Plug: Up to 60kMile Life Expectancy Fits select: 1975-1987 BUICK REGAL, 1975-1985 PONTIAC FIREBIRD

Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Platinum spark plugs provide a center wire platinum firing tip which provides reduced gap erosion, fewer misfires, better performance and increased durability. Consider upgrading to Autolite Double Platinum or Iridium XP spark plugs for increased performance.

High nickel alloy side electrode maintains precise gap Full platinum tip assures virtually no gap erosion for long life Necked-down center electrode fires quicker, cleaner with less voltage for easier starts, quicker acceleration and improved fuel economy (as compared to standard plugs) Electrode Tip Material: Platinum Reach: .460 In Resistor: Suppressor Seat Type: Tapered Thread Diameter: 14 mm Tip Configuration: Power Wrench Diameter: 5/8 In Fits Select: 1978-1987 BUICK REGAL 6 Cyl 3.8 L 1975-1978 PONTIAC FIREBIRD 8 Cyl 6.6 L 1985-1993 CHEVROLET S TRUCK 4 Cyl 2.5 L 1977-1987 OLDSMOBILE CUTLASS SUPREME 6 Cyl 3.8 L 1979-1981 PONTIAC FIREBIRD 8 Cyl 4.9 L 1984 PONTIAC FIERO 1977 FORD LTD 8 Cyl 6.6 L 1982-1990 CHEVROLET CELEBRITY 4 Cyl 2.5 L 1977 FORD THUNDERBIRD 8 Cyl 5.8 L 1978-1979 FORD LTD 8 Cyl 5 L 1978-1979 FORD THUNDERBIRD 8 Cyl 5 L 1985 OLDSMOBILE 98 6 Cyl 3.8 L 1977-1980 PONTIAC BONNEVILLE 8 Cyl 4.9 L 1986-1992 OLDSMOBILE CUTLASS CIERA 4 Cyl 2.5 L 1977-1979 FORD MUSTANG 8 Cyl 5 L 1977-1979 PONTIAC GRAND PRIX 8 Cyl 4.9 L 1980 AMERICAN MOTORS JEEP 4 Cyl 2.5 L 1985-1991 PONTIAC GRAND AM 4 Cyl 2.5 L 1976 BUICK ELECTRA 8 Cyl 7.5 L 1985-1990 GMC S TRUCK 4 Cyl 2.5 L 1985 BUICK ELECTRA 6 Cyl 3.8 L 1991-1993 GMC SONOMA 4 Cyl 2.5 L 1975-1976,1980 BUICK LESABRE 8 Cyl 5.7 L 1980-1983 JEEP JEEP 4 Cyl 2.5 L 1982-1984 BUICK CENTURY 6 Cyl 3 L and more - add your vehicle to our fit widget to check