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10' Liberty 3.7Liter Spark Plug Replacement

2809 Views 3 Replies 4 Participants Last post by  ralph.jones
My Lib will be approaching the 30K mark soon, read up to use only the copper plugs and to make sure they are gapped correctly. Any suggestions as to which plug manufacturer to stick with?
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Most late model Chrysler V-6's came with NGK, Champion, or Denso.
I use Bosch or the "Mopar" brand, which can be re-labeled from any of the first three mentioned.
 
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