Product Description
Motorcraft Spark Plug SP450X (ASF42CX)
Motorcraft spark plugs are engineered to meet strict Ford standards, ensuring consistent performance, durability, and reliability across a wide range of vehicles. Designed to maintain peak engine efficiency throughout the service interval, these spark plugs typically last between 60,000 to 100,000 miles.
Built with high-quality materials, Motorcraft spark plugs help eliminate misfires, improve fuel efficiency, and support proper emissions control. Each plug is precisely matched to specific engine applications, delivering dependable ignition performance for both domestic and import vehicles.
Product Features
- Meets Ford OE engineering standards
- Helps maintain peak engine performance
- Reduces misfires and improves fuel economy
- Designed for long service life (60,000–100,000 miles)
- Supports proper emissions control
- Engineered for durability and reliability
Specifications
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Brand: Motorcraft
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Part Number: SP450X
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Alternate Part Number: ASF42CX
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Dimensions: 1.00" L x 1.00" W x 3.38" H
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Weight: 0.10 lb
Vehicle Fitment
This spark plug fits a wide range of domestic and import vehicles. Below is a structured fitment overview:
Audi
- A6 Quattro (2000 – V8 4.2L)
- A8 Quattro (2000 – V8 4.2L)
Buick
- Century (1979–1988 – V6 3.8L Turbo/Standard)
- Electra (1967–1970 – V8 7.0L / 7.5L)
- LeSabre (1970–1988 – V6 3.0L / 3.8L, V8 7.5L)
- Regal (1979–1987 – Turbo V6 3.8L)
- Riviera (1967–1985 – V6 3.8L Turbo, V8 7.0L / 7.5L)
- Skylark (1967–1988 – V6 2.8L / 3.0L, V8 6.6L / 7.5L)
- Roadmaster (1993 – V8 5.7L)
Cadillac
- DeVille (1997–1999 – V8 4.6L)
- Eldorado (1997–2002 – V8 4.6L)
- Seville (1997–1999 – V8 4.6L)
- Allante (1992 – V8 4.5L)
Chevrolet
- Camaro (1971, 1993–1996 – V6/V8)
- Corvette (1970–1998 – V8 5.7L / 7.4L)
- C/K Series Trucks (1982–1995 – V6/V8 4.3L–7.4L)
- Suburban (1971–1995 – V8 5.7L / 7.4L)
- S10 / S10 Blazer (1989–1995 – V6 2.8L / 4.3L)
- Tahoe (1995 – V8 5.7L)
- Astro / G-Series Vans / P-Series Vans (1971–1998 – V6/V8)
- Impala / Caprice / Malibu / Monte Carlo (1970–1988 – Various engines)
Ford
- F-Series (F-100, F-150, F-250, F-350) (1973–1995 – V8 5.0L–7.5L)
- E-Series Vans (E-100, E-150, E-250, E-350) (1975–1995 – V8 5.0L–7.5L)
- Bronco (1975–1995 – V8 5.0L / 5.8L / 6.6L)
- Mustang (1969–1995 – V8 4.2L / 5.0L / 5.8L)
- Thunderbird (1972–1993 – V8 4.2L / 5.0L / 7.5L)
- LTD / Crown Victoria (1970–1991 – V8 4.2L–7.5L)
- Econoline / Club Wagon / Motorhome Chassis / F-Super Duty (1975–1995)
- Fairlane, Falcon, Torino, Ranchero, Galaxie, Granada (1970s–1980s)
GMC
- C/K Series Trucks & Suburban (1982–1995 – V6/V8 4.3L–7.4L)
- G-Series Vans (1989–1996 – V6/V8)
- Jimmy, Sonoma, Safari, Yukon (1989–1995)
Lincoln
- Mark VII (1985–1992 – V8 5.0L)
Mercury
- Capri, Cougar, Marquis, Grand Marquis, Monarch, Zephyr (1975–1993 – V8 4.2L–6.6L)
Mercedes-Benz
- 190E, 260E, 300 Series (1984–1993 – L4/L6 engines)
Mazda
- B2300 (2010 – L4 2.3L)
- B3000 (2008 – V6 3.0L)
Oldsmobile
- 98, Delta 88, Cutlass, Aurora (1986–1998 – V6/V8)
Pontiac
- Firebird, Bonneville, Grand Am, Sunfire, Parisienne (1970–1998 – V6/V8)
Other
- AM General Hummer (1995–1996 – V8 5.7L)
- DeTomaso Pantera (1971–1989 – V8 5.8L)
- Dodge Trucks/Vans (1968–1981 – L6 3.7L / V8 5.2L)
- Plymouth Vans (1980 – L6 3.7L)
