It looks like you're new here. If you want to get involved, click one of these buttons!
Yours will be different in that mine is distributorless, but the plug numbers are the same for the 4.0. Champion or Bosch is a matter of personal preference. I've always used the Bosch Platinums since they are generally good for 60k+ miles, but the plugs in the 4.0 are super easy to get to and changing them could be done in 15 min. You may read that "platinum plugs are bad for a Jeep". I have found absolutely ZERO credible evidence of this. To each their own.
Need help navigating? email@example.com - or send a private message by clicking on my name.
Help | About Us | Contact Us | Careers | Affiliate Program | Dealer Center | Privacy Statement | Visitor Agreement | Membership Agreement
Your Ad Choices | Site Map | Glossary | Mobile | Developers
© Edmunds.com, Inc.