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post #1 of 5 Old 09-07-2008, 12:04 AM Thread Starter
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1999 XJ Cherokee 
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spark plugs.

does anyone have a favorite or what not, changing mine tomorrow just seeing if i could get some input.


99 xj sport aka BLACK BETTY
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post #2 of 5 Old 09-07-2008, 06:17 AM
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don't remember the part numbers, but stick with champion truck plugs or champion double platinum plugs.

03 F-250 Super Duty Diesel
01 Cherokee Sport

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post #3 of 5 Old 09-07-2008, 06:25 AM
Got my eye on you.....
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Champion truck plugs are all you ever need to run in the 4.0

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post #4 of 5 Old 09-07-2008, 09:02 AM
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1998 XJ Cherokee 
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I use autolite plugs in mine

98 xj 4.0L 231 / aw4 /8.25/3.55
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post #5 of 5 Old 09-07-2008, 08:25 PM
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i just put in champion plugs in mine

2002 WJ 2wd DD
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