MOTORCRAFT SP425X
MOTORCRAFT part number SP425X is a spark plug in the Ignition system. This catalog matches it to 14 year-and-engine configurations from 1970 to 1989.
Verified fitment includes 1989 Excalibur Phaeton 5.7L 350cid V8 ; 1985 Excalibur Phaeton 5.0L 305cid V8 ; 1982 Checker Marathon 3.8L 229cid V6 ; 1982 Checker Marathon 4.4L 267cid V8 ; 1981 Checker Marathon 3.8L 229cid V6 , plus 9 other configurations. See every vehicle this part fits.
Frequently Asked Questions
What is MOTORCRAFT SP425X?
MOTORCRAFT part number SP425X is a spark plug with published application data for 14 vehicle configurations from 1970 to 1989. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.
Which vehicles does MOTORCRAFT SP425X fit?
This catalog matches SP425X to 14 year-and-engine configurations from 1970 to 1989. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.
Is MOTORCRAFT SP425X OEM or aftermarket?
What matters is the published application data for this part number, not the label on the box. MOTORCRAFT SP425X is listed with its manufacturer part number so you can compare it to an OEM number or another brand that covers the same fitment.
AutoFactsDB is reader-supported. As an Amazon Associate, we earn from qualifying purchases made through links on this page — at no extra cost to you.
Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.