Description
The Motorcraft SP459X Spark Plug (AGSF22FSMX) is a nickel-alloy spark plug engineered to deliver dependable ignition performance, corrosion resistance, and long service life across a broad range of applications. Designed with electrodes built for extended durability without platinum enhancements, this plug helps resist oxidation and arc erosion while supporting reliable combustion and consistent engine operation.
A multi-rib insulator helps protect against misfire, while the nickel-plated shell adds corrosion resistance for long-term durability in demanding operating conditions. Motorcraft spark plugs are matched to specific engine applications to help reduce misfires, support fuel efficiency, and optimize emissions performance. This spark plug is well suited for replacement service in a wide range of domestic and import cars, trucks, commercial vehicles, and small engine applications where specified.
Built with high-quality materials and tested for dependable performance, the SP459X is a reliable OEM-style replacement spark plug for maintaining engine performance, serviceability, and fitment accuracy.
Features
- Motorcraft spark plug part number SP459X
- Plug number AGSF22FSMX
- Nickel-alloy electrode design engineered for extended service life
- Resistant to oxidation and arc erosion
- Multi-rib insulator helps protect against misfire
- Nickel-plated shell for corrosion resistance
- Service interval of up to 60,000 miles
- Designed to support performance, reliability, and emissions control
- Matched to specific engine applications for dependable fit and function
- Suitable for a broad range of automotive, truck, commercial, and specialty applications
- Built from high-quality materials for reliable long-term operation
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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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DeTomaso Mangusta: 1967–1972 – V8 5.0L
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Edsel Citation: 1958 – V8 6.7L
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Edsel Corsair: 1958 – V8 6.7L; 1959 – V8 5.4L
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Edsel Pacer: 1958 – V8 5.9L
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Edsel Ranger: 1958 – V8 5.9L; 1960 – V8 4.8L
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Edsel Roundup: 1958 – V8 5.9L
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Edsel Villager: 1958 – V8 5.9L; 1960 – V8 4.8L
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Ford 300: 1963 – V8 6.4L, V8 7.0L
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Ford Bronco: 1966 – V8 4.7L; 1967 – L6 3.9L, V8 4.7L; 1968 – V8 4.7L, V8 5.0L; 1969 – V8 5.0L; 1972–1974 – V8 5.0L; 1980–1982 – L6 4.9L; 1983–1984 – GAS L6 4.9L Y; 1985–1986 – L6 4.9L Y
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Ford Club: 1958–1959 – V8 5.8L
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Ford Club Wagon: 1967 – L6 3.9L
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Ford Contour: 2000 – SVT V6 2.5L G
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Ford Country Sedan: 1958–1962 – V8 5.8L; 1962–1971 – V8 6.4L where specified; 1963–1969 – V8 4.7L/5.0L/5.8L as applicable; 1965–1970 – L6 3.9L as applicable; 1964–1972 – V8 7.0L where specified; 1972 – V8 7.5L; 1973–1974 – V8 5.8L
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Ford Country Squire: 1958–1962 – V8 5.8L; 1962–1972 – V8 6.4L/7.0L where specified; 1963–1967 – V8 4.7L; 1966–1967 – L6 3.9L; 1968–1972 – V8 5.0L/5.8L where specified; 1972 – V8 7.5L; 1973–1974 – V8 5.8L
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Ford Courier Sedan Delivery: 1958 – V8 5.8L
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Ford Custom: 1964–1972 – L6 3.9L and V8 4.7L/5.0L/5.8L/6.4L/7.0L as applicable
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Ford Custom 300: 1958–1960 – V8 5.8L
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Ford Custom 500: 1964–1974 – L6 3.9L and V8 4.7L/5.0L/5.8L/6.4L/7.0L as applicable
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Ford Del Rio Wagon: 1958 – V8 5.8L
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Ford E-100 Econoline: 1969–1974 – L6 3.9L/V8 5.0L as applicable; 1983 – GAS L6 4.9L Y
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Ford E-100 Econoline Club Wagon: 1983 – GAS L6 4.9L Y
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Ford E-150 Econoline: 1983–1986 – GAS/LPG L6 4.9L as applicable; 1997 – V8 5.4L L
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Ford E-150 Econoline Club Wagon: 1983, 1985–1986 – GAS L6 4.9L Y; 1997 – V8 5.4L L
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Ford E-200 Econoline: 1969–1974 – L6 3.9L/4.9L and V8 5.0L as applicable
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Ford E-250 Econoline: 1983–1986 – GAS/LPG L6 4.9L as applicable; 1997 – V8 5.4L L
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Ford E-250 Econoline Club Wagon: 1983, 1985–1986 – GAS/LPG L6 4.9L as applicable
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Ford E-300 Econoline: 1969–1974 – L6 3.9L/4.9L and V8 5.0L as applicable
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Ford E-350 Econoline: 1983–1986 – GAS/LPG L6 4.9L as applicable; 1997 – V8 5.4L L; V10 6.8L S
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Ford E-350 Econoline Club Wagon: 1983, 1985–1986 – GAS L6 4.9L Y; 1997 – V8 5.4L L; V10 6.8L S
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Ford Econoline: 1965–1967 – L6 3.9L
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Ford Econoline Super Duty: 1997 – V8 5.4L L; V10 6.8L S
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Ford Expedition: 1997 – V8 5.4L L
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Ford F-100: 1965–1983 – L6 3.9L/4.9L and V8 5.0L/5.8L/5.9L/6.4L as applicable
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Ford F-150: 1975–1986 – L6 4.9L and V8 5.9L/6.4L as applicable; 1997 – V8 5.4L L
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Ford F-250: 1965–1984 – L6 3.9L/4.9L and V8 5.0L/5.8L/5.9L/6.4L as applicable; 1997 – V8 5.4L L
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Ford F-350: 1965–1984 – L6 3.9L/4.9L and V8 5.8L/5.9L/6.4L as applicable
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Ford F-500: 1975 – V8 5.9L, V8 6.4L
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Ford Fairlane: 1958–1970 – V8 4.7L/5.0L/5.8L/6.4L/7.0L as applicable
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Ford Falcon: 1964–1970 – V8 4.7L/5.0L/5.8L/7.0L as applicable
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Ford Falcon Sedan Delivery: 1965 – V8 4.7L
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Ford GT40: 1966–1969 – V8 4.7L
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Ford Galaxie: 1959–1967 – L6 3.9L and V8 4.7L/5.8L/6.4L/7.0L as applicable
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Ford Galaxie 500: 1962–1974 – L6 3.9L and V8 4.7L/5.0L/5.8L/6.4L/7.0L as applicable
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Ford Gran Torino: 1972–1974 – V8 5.0L/5.8L/7.0L as applicable
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Ford LTD: 1965–1974 – V8 4.7L/5.0L/5.8L/6.4L/7.0L/7.5L as applicable
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Ford Maverick: 1971–1974 – V8 5.0L
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Ford Mustang: 1964, 1966–1967 – V8 4.7L; 1967 – V8 6.4L
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Ford P-350: 1968–1972 – L6 3.9L; 1972 – V8 5.0L
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Ford Pinto: 1971–1974 – L4 2.0L
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Ford Ranch Wagon: 1958–1974 – L6 3.9L and V8 4.7L/5.0L/5.8L/6.4L/7.0L as applicable
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Ford Ranchero: 1958–1959 – V8 5.8L; 1965–1974 – V8 4.7L/5.0L/5.8L/6.4L/7.0L as applicable
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Ford Skyliner: 1958–1959 – V8 5.8L
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Ford Starliner: 1960 – V8 5.8L
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Ford Sunliner: 1958–1960 – V8 5.8L
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Ford Thunderbird: 1958–1972 – V8 5.8L/6.4L/7.0L/7.5L as applicable
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Ford Torino: 1968–1974 – V8 5.0L/5.8L/6.4L/7.0L as applicable
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Ford Victoria: 1958–1960 – V8 5.8L
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Lincoln Capri: 1958–1959 – V8 7.0L
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Lincoln Continental: 1958–1972 – V8 7.0L/7.5L/7.6L as applicable
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Lincoln LS: 2003–2005 – V6 3.0L S
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Lincoln Lincoln Series: 1960 – V8 7.0L
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Lincoln Mark III: 1968–1971 – V8 7.5L/7.6L as applicable
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Lincoln Mark IV: 1972 – V8 7.5L
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Lincoln Premier: 1958–1960 – V8 7.0L
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Mercury Brougham: 1967 – V8 6.7L, V8 7.0L
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Mercury Caliente: 1964–1967 – V8 4.3L/4.7L/6.4L/7.0L as applicable
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Mercury Capri: 1971–1974 – L4 2.0L
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Mercury Colony Park: 1958–1973 – V8 4.8L/5.8L/6.3L/6.4L/6.7L/7.0L/7.5L as applicable
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Mercury Comet: 1963–1969, 1971–1974 – V8 4.3L/4.7L/5.0L/5.8L/6.4L/7.0L as applicable
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Mercury Commuter: 1958–1968 – V8 5.8L/6.3L/6.4L/6.7L/7.0L as applicable
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Mercury Cougar: 1967–1974 – V8 4.7L/5.0L/5.8L/6.4L/7.0L as applicable
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Mercury Country Cruiser: 1959 – V8 6.3L, V8 7.0L; 1963 – V8 3.6L
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Mercury Cyclone: 1964–1971 – V8 4.3L/4.7L/5.0L/5.8L/6.4L/7.0L as applicable
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Mercury Marauder: 1963–1966, 1969–1970 – V8 6.4L/7.0L as applicable
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Mercury Marquis: 1967–1973 – V8 5.8L/6.4L/6.7L/7.0L/7.5L as applicable
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Mercury Meteor: 1961–1963 – V8 3.6L/5.8L/6.4L as applicable
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Mercury Montclair: 1958–1959, 1964–1968 – V8 6.3L/6.4L/6.7L/7.0L as applicable
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Mercury Montego: 1968–1974 – V8 5.0L/5.8L/6.4L/7.0L as applicable
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Mercury Monterey: 1958–1973 – V8 4.8L/5.8L/6.3L/6.4L/6.7L/7.0L/7.5L as applicable
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Mercury Park Lane: 1958–1960, 1964–1968 – V8 6.3L/6.4L/6.7L/7.0L as applicable
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Mercury Villager: 1963–1967 – V8 4.3L/4.7L/6.4L/7.0L as applicable
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Mercury Voyager: 1958–1959, 1966–1967 – V8 4.7L/6.3L/6.4L/7.0L as applicable