spark plug differance

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Feb 20, 2017 | 11:50 AM

ddgts68

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Joined: Feb 2017

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spark plug differance

what is difference between motorcraft sp459 and sp479.

Feb 20, 2017 | 12:12 PM

Jbrew

98 F150 5.4L E40D/4R100

Joined: Nov 2006

Posts: 28,519

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From: MI

sp20 ?

Feb 20, 2017 | 01:04 PM

akdoggie

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Joined: Jul 2010

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From: Alaska

479 is a hotter plug than the 459. 98 and newer use the 479. earlier Fords use the 459, including the 97 Modulars in the 150's. Also the tips are supposedly different in design

Last edited by akdoggie; Feb 20, 2017 at 01:09 PM.

Feb 20, 2017 | 06:44 PM