Best sparkplug for a 4.2L

20

Asked by Debid2 Nov 02, 2017 at 02:59 PM about the 2004 Ford F-150 Heritage 2 Dr XL Standard Cab SB

Question type: Maintenance & Repair

I have a 2004 F150 Heritage with the 4.2L
engine. What are the best sparkplugs to use
in this motor?

6 Answers

59,755

Ist OEM choice is Standard: MOTORCRAFT SP504 {#AGSF34FM, AGSF34FMF4, AGSF34FMF6} Finewire Platinum, Gap: .044. OR 2nd choice is upgrade to: MOTORCRAFT AGSF34FM Platinum-Nickel Plated Shell, Suppressor Sprk Plug 2 Engine CODE PLATINUM FINEWIRE - NICKEL PLATED SHELL. Gap: .044.

3 people found this helpful.
159,085

I like Motorcraft also. Motorcraft parts are designed by Ford to work best in your vehicle.

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