MOTORCRAFT SP420X — Fitment Guide

Part number SP420X from MOTORCRAFT is matched to 13 year-and-engine configurations spanning 1958 to 1973. Fitment can still depend on position, trim or production date — read the notes before ordering. ← Back to part details

Manufacturer notes
Copper Spark PlugInsulator Height: 60.5282Spark Plug Approximate Resistor Value: 2,000 or 12,000
Gap: .035with 18mm Thread

Compatible Vehicles (13)

Showing 13 configurations of 13 configurations

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1973 Ac 428 7.0L V8 Fits: 1973 Ac 428 7.0L V8 View on
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1972 Ac 428 7.0L V8 Fits: 1972 Ac 428 7.0L V8 View on
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1971 Ac 428 7.0L V8 Fits: 1971 Ac 428 7.0L V8 View on
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1970 Ac 428 7.0L V8 Fits: 1970 Ac 428 7.0L V8 View on
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1969 Ac 428 7.0L V8 Fits: 1969 Ac 428 7.0L V8 View on
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1969 Detomaso MANGUSTA 5.0L V8 Fits: 1969 Detomaso Mangusta 5.0L V8 View on
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1968 Ac 428 7.0L V8 Fits: 1968 Ac 428 7.0L V8 View on
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1967 Ac 428 7.0L V8 Fits: 1967 Ac 428 7.0L V8 View on
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1964 Griffith 200 4.7L V8 Fits: 1964 Griffith 200 4.7L V8 View on
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1960 Edsel VILLAGER 4.8L 292cid V8 Fits: 1960 Edsel Villager 4.8L 292cid V8 View on
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1959 Edsel CORSAIR 5.4L 332cid V8 Fits: 1959 Edsel Corsair 5.4L 332cid V8 View on
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1958 Edsel CITATION 6.7L 410cid V8 Fits: 1958 Edsel Citation 6.7L 410cid V8 View on
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1958 Edsel ROUNDUP 5.9L 361cid V8 Fits: 1958 Edsel Roundup 5.9L 361cid V8 View on
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Frequently Asked Questions

How many vehicles does MOTORCRAFT SP420X fit?

13 Year-and-engine configurations from 1958 to 1973. Each row is one published application — year, make, model and engine.

If my vehicle is in this list, is SP420X guaranteed to fit?

The row means the manufacturer published fitment for that year, model and engine. Still read the notes for position, trim or production-date qualifiers before you order, and cross-reference the number against the part you are replacing.

Can I jump from this list to the parts for my vehicle?

Yes. Each model link opens the matching category page for that vehicle so you can compare other brands that cover the same fitment.

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