Description
The Motorcraft Spark Plug SP501X (ASF32PX) is engineered to meet strict Ford engineering standards for performance, durability, and long service life. Designed to help maintain peak engine performance throughout its service interval, this spark plug supports efficient combustion, helps reduce misfires, improves fuel economy, and supports proper emissions performance.
Motorcraft spark plugs are matched to specific engine applications to provide dependable ignition performance across a wide range of vehicles. Built with high-quality materials, the SP501X is a reliable OEM-style replacement spark plug for maintaining long-term engine efficiency and consistent operation.
With a typical service interval of 60,000 to 100,000 miles, the SP501X is designed for durability and confidence in daily driving, work applications, and restoration use where proper fitment and dependable spark delivery are essential.
Features
- Motorcraft spark plug part number SP501X
- Plug number ASF32PX
- Meets Ford engineering standards for quality and performance
- Designed to help maintain peak engine performance over extended service intervals
- Typical service life of 60,000 to 100,000 miles
- Helps reduce misfires and support fuel efficiency
- Supports proper emissions performance
- Engine-specific design for reliable fit and function
- Built with high-quality materials for dependable long-term durability
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Brand: Motorcraft
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Dimensions: 1.00 L x 1.00 W x 3.38 H in
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Weight: 0.10 lb
Fitment
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Ford Country Sedan: 1970–1971 – 5.8L Gas, 7.0L Gas
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Ford Country Squire: 1970–1971 – 5.8L Gas, 7.0L Gas
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Ford Custom: 1970–1971 – 5.8L Gas, 7.0L Gas
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Ford Custom 500: 1970–1971 – 5.8L Gas, 7.0L Gas
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Ford E-100 Econoline: 1970 – 5.0L Gas
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Ford E-150 Econoline: 1976 – 5.8L Gas; 1986–1996 – 5.8L Gas
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Ford E-150 Econoline Club Wagon: 1976 – 5.8L Gas; 1986–1996 – 5.8L Gas
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Ford E-200 Econoline: 1970 – 5.0L Gas
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Ford E-250 Econoline: 1976 – 5.8L Gas; 1986–1996 – 5.8L Gas
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Ford E-250 Econoline Club Wagon: 1976 – 5.8L Gas; 1981 – 7.5L Gas; 1986–1991 – 5.8L Gas
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Ford E-300 Econoline: 1970 – 5.0L Gas
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Ford E-350 Econoline: 1976 – 5.8L Gas; 1981 – 7.5L Gas; 1986–1996 – 5.8L Gas
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Ford E-350 Econoline Club Wagon: 1981 – 7.5L Gas; 1986–1996 – 5.8L Gas
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Ford Econoline Super Duty: 1996 – 5.8L Gas
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Ford F-100: 1970 – 5.0L Gas
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Ford F-150: 1985–1996 – 5.0L Gas, 5.8L Gas
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Ford F-250 HD: 1997 – 5.8L Gas
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Ford F-250 Super Duty: 1985–1997 – 5.0L Gas, 5.8L Gas
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Ford Fairlane: 1970 – 7.0L Gas
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Ford Falcon: 1970 – 7.0L Gas
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Ford Galaxie 500: 1970–1971 – 5.8L Gas, 7.0L Gas
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Ford LTD: 1970–1971 – 5.8L Gas, 7.0L Gas; 1982 – 5.8L Gas
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Ford Mustang: 1970–1971 – 5.0L Gas, 5.8L Gas, 7.0L Gas
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Ford Ranch Wagon: 1970–1971 – 5.8L Gas, 7.0L Gas
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Ford Ranchero: 1970–1971 – 5.8L Gas, 7.0L Gas
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Ford Thunderbird: 1970 – 7.0L Gas
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Ford Torino: 1970–1971 – 5.8L Gas, 7.0L Gas
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Mercury Colony Park: 1970–1971 – 7.0L Gas
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Mercury Cougar: 1970–1971 – 7.0L Gas
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Mercury Cyclone: 1970–1971 – 7.0L Gas
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Mercury Marauder: 1970 – 7.0L Gas
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Mercury Marquis: 1970–1971 – 7.0L Gas
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Mercury Montego: 1970–1971 – 7.0L Gas
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Mercury Monterey: 1970–1971 – 7.0L Gas
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Buick Century: 1986 – V6 2.8L
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Buick Commercial Chassis: 1992
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Buick Roadmaster: 1992
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Buick Skyhawk: 1982 – L4 1.8L
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Buick Skylark: 1981–1985 – V6 2.8L
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Cadillac Brougham: 1990 – V8 5.7L; 1991 – V8 5.0L, 5.7L; 1992 – V8 5.7L
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Cadillac Commercial Chassis: 1992 – V8 5.7L
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Chevrolet Astro: 1985–1988 – V6 4.3L
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Chevrolet Bel Air: 1971 – V8 7.4L
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Chevrolet Biscayne: 1971 – V8 7.4L
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Chevrolet Blazer: 1987 – V8 5.0L, 5.7L; 1988 – V8 5.7L
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Chevrolet Brookwood: 1971 – V8 7.4L
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Chevrolet C10: 1985–1986 – V6 4.3L
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Chevrolet C1500: 1988 – V6 4.3L
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Chevrolet C20: 1985–1986 – V6 4.3L
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Chevrolet C2500: 1988 – V6 4.3L
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Chevrolet C3500: 1988 – V8 7.4L
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Chevrolet Camaro: 1982–1984 – V6 2.8L; 1985–1987 – V8 5.0L, 5.7L; 1989 – V6 2.8L; 1990–1992 – V6 3.1L
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Chevrolet Caprice: 1971 – V8 7.4L; 1985–1986 – V6 4.3L; 1986 – V8 5.0L; 1990–1992 – V8 5.7L; 1992 – V6 4.3L
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Chevrolet Celebrity: 1982–1984 – V6 2.8L; 1986 – V6 2.8L
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Chevrolet Chevette: 1976 – L4 1.6L; 1977 – L4 1.4L, 1.6L; 1978
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Chevrolet Citation: 1981–1983 – V6 2.8L
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Chevrolet Citation II: 1984 – V6 2.8L
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Chevrolet Commercial Chassis: 1991 – V8 5.7L; 1992 – V6 4.3L, V8 5.7L
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Chevrolet Corvette: 1971 – V8 7.4L; 1985–1986
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Chevrolet El Camino: 1970–1971 – V8 7.4L; 1985–1987 – V6 4.3L; 1986 – V8 5.0L
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Chevrolet G10: 1985–1988 – V6 4.3L
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Chevrolet G20: 1985–1988 – V6 4.3L
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Chevrolet G30: 1985–1988 – V6 4.3L; 1988 – V8 7.4L
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Chevrolet Impala: 1971 – V8 7.4L; 1985 – V6 4.3L
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Chevrolet K10: 1985–1986 – V6 4.3L
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Chevrolet K1500: 1988 – V6 4.3L
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Chevrolet K20: 1985 – V6 4.3L
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Chevrolet K2500: 1988 – V6 4.3L
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Chevrolet K3500: 1988 – V8 7.4L
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Chevrolet K5 Blazer: 1986 – V8 5.0L, 5.7L
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Chevrolet Kingswood: 1971 – V8 7.4L
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Chevrolet Monte Carlo: 1985–1986 – V6 4.3L; 1986 – V8 5.0L
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Chevrolet Monza: 1975 – L4 2.3L
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Chevrolet P20 Van: 1970 – V8 7.4L
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Chevrolet P30 Van: 1970 – V8 7.4L
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Chevrolet R10: 1987 – V6 4.3L, V8 5.0L
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Chevrolet R10 Suburban: 1987 – V8 5.0L
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Chevrolet R20: 1987 – V6 4.3L, V8 5.0L, 7.4L; 1988 – V8 7.4L
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Chevrolet R20 Suburban: 1987–1988 – V8 7.4L
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Chevrolet R2500 Suburban: 1991 – V8 7.4L
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Chevrolet R30: 1987–1988 – V8 7.4L
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Chevrolet R3500: 1991 – V8 7.4L
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Chevrolet S10: 1982–1984 – V6 2.8L; 1988 – V6 4.3L; 1993 – V6 2.8L
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Chevrolet S10 Blazer: 1983–1984 – V6 2.8L; 1988 – V6 4.3L
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Chevrolet Townsman: 1971 – V8 7.4L
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Chevrolet V10: 1987 – V6 4.3L, V8 5.0L, 5.7L
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Chevrolet V10 Suburban: 1987–1988 – V8 5.7L
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Chevrolet V20: 1987 – V8 5.7L
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Chevrolet V20 Suburban: 1987–1988 – V8 5.7L, 7.4L
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Chevrolet V30: 1987–1988 – V8 5.7L, 7.4L
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Chevrolet Vega: 1975 – L4 2.3L; 1977
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GMC C1500: 1985–1988 – V6 4.3L
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GMC C1500 Suburban: 1986 – V8 5.0L
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GMC C2500: 1985–1988 – V6 4.3L; 1986, 1988 – V8 5.0L
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GMC C2500 Suburban: 1986 – V8 5.0L
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GMC C3500: 1986 – V8 5.0L; 1988 – V8 7.4L
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GMC Caballero: 1985–1987 – V6 4.3L; 1986 – V8 5.0L
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GMC G1500: 1985–1988 – V6 4.3L
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GMC G2500: 1985–1988 – V6 4.3L
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GMC G3500: 1985–1988 – V6 4.3L; 1988 – V8 7.4L
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GMC Jimmy: 1986–1988 – V8 5.0L, 5.7L
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GMC K1500: 1985–1988 – V6 4.3L
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GMC K2500: 1985, 1988 – V6 4.3L; 1988 – V8 5.0L
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GMC K3500: 1988 – V8 7.4L
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GMC P25/P2500 Van: 1970 – V8 7.4L
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GMC P35/P3500 Van: 1970 – V8 7.4L
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GMC R1500: 1987 – V6 4.3L, V8 5.0L
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GMC R1500 Suburban: 1987 – V8 5.0L
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GMC R2500: 1987 – V6 4.3L, V8 5.0L, 7.4L; 1988 – V8 7.4L
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GMC R2500 Suburban: 1987–1988, 1991 – V8 7.4L
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GMC R3500: 1987–1988, 1991 – V8 7.4L
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GMC S15: 1982–1984 – V6 2.8L; 1988 – V6 4.3L
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GMC S15 Jimmy: 1983–1984 – V6 2.8L; 1988 – V6 4.3L
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GMC Safari: 1985–1988 – V6 4.3L
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GMC Sonoma: 1993 – V6 2.8L
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GMC Sprint: 1971 – V8 7.4L
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GMC Syclone: 1991
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GMC Typhoon: 1992–1993
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GMC V1500: 1987 – V6 4.3L, V8 5.0L, 5.7L
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GMC V1500 Suburban: 1987–1988 – V8 5.7L
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GMC V2500: 1987 – V8 5.7L
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GMC V2500 Suburban: 1987–1988 – V8 5.7L
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GMC V3500: 1987–1988 – V8 5.7L, 7.4L
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Isuzu Pickup: 1991–1994 – V6 3.1L
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Isuzu Rodeo: 1991–1992 – V6 3.1L
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Isuzu Trooper: 1989–1991 – V6 2.8L
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Jeep Cherokee: 1984–1986 – V6 2.8L
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Jeep Comanche: 1986 – V6 2.8L
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Jeep Wagoneer: 1984–1986 – V6 2.8L
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Oldsmobile Bravada: 1991–1992
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Oldsmobile Custom Cruiser: 1992 – V8 5.7L
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Oldsmobile Cutlass Ciera: 1986 – V6 2.8L
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Oldsmobile Firenza: 1982 – L4 1.8L
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Oldsmobile Omega: 1981–1984 – V6 2.8L
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Oldsmobile Silhouette: 1990–1992 – V6 3.1L where specified
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Oldsmobile Starfire: 1976–1977 – L4 2.3L
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Pontiac 6000: 1982–1986 – V6 2.8L
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Pontiac Astre: 1977 – L4 2.3L
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Pontiac Bonneville: 1986 – V6 4.3L, V8 5.0L
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Pontiac Firebird: 1982–1984 – V6 2.8L; 1985–1987 – V8 5.0L, 5.7L; 1989 – V6 2.8L; 1990–1992 – V6 3.1L
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Pontiac Grand Prix: 1986 – V6 4.3L, V8 5.0L
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Pontiac J2000: 1982 – L4 1.8L
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Pontiac Parisienne: 1985–1986 – V6 4.3L; 1986 – V8 5.0L
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Pontiac Phoenix: 1981–1984 – V6 2.8L
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Pontiac Trans Sport: 1990–1992 – V6 3.1L where specified