MOTORCRAFT SP420X
MOTORCRAFT part number SP420X is a spark plug in the Ignition system. This catalog matches it to 13 year-and-engine configurations from 1958 to 1973.
Verified fitment includes 1973 Ac 428 7.0L V8 ; 1972 Ac 428 7.0L V8 ; 1971 Ac 428 7.0L V8 ; 1970 Ac 428 7.0L V8 ; 1969 Ac 428 7.0L V8 , plus 8 other configurations. See every vehicle this part fits.
Frequently Asked Questions
What is MOTORCRAFT SP420X?
MOTORCRAFT part number SP420X is a spark plug with published application data for 13 vehicle configurations from 1958 to 1973. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.
Which vehicles does MOTORCRAFT SP420X fit?
This catalog matches SP420X to 13 year-and-engine configurations from 1958 to 1973. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.
Is MOTORCRAFT SP420X OEM or aftermarket?
What matters is the published application data for this part number, not the label on the box. MOTORCRAFT SP420X is listed with its manufacturer part number so you can compare it to an OEM number or another brand that covers the same fitment.
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