# Jeep cherokee

**URL:** <https://community.cartalk.com/t/jeep-cherokee/85169>\
**Category:** General Discussion\
**Created:** [May 25, 2014, 4:46pm UTC](https://community.cartalk.com/t/jeep-cherokee/85169 "2014-05-25T16:46:39Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![spider-man](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/spider-man/32/2451_2.png) [@spider-man](https://community.cartalk.com/u/spider-man)\
**Post date:** [May 25, 2014, 4:46pm UTC](https://community.cartalk.com/t/jeep-cherokee/85169/1 "2014-05-25T16:46:39Z")

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anyone know what brand spark plugs came in 1999 jeep Cherokee. 4.0 liter. inline 6. I don’t have the owner’s manual or factory service manual.

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**Author:** ![Fender1325](https://avatars.discourse-cdn.com/v4/letter/f/96bed5/32.png) [@Fender1325](https://community.cartalk.com/u/Fender1325)\
**Post date:** [May 25, 2014, 4:49pm UTC](https://community.cartalk.com/t/jeep-cherokee/85169/2 "2014-05-25T16:49:35Z")

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You should be able to google a free owners manual online, or call jeep and ask.

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**Author:** ![Rod-Knox](https://avatars.discourse-cdn.com/v4/letter/r/a183cd/32.png) [@Rod-Knox](https://community.cartalk.com/u/Rod-Knox)\
**Post date:** [May 25, 2014, 5:36pm UTC](https://community.cartalk.com/t/jeep-cherokee/85169/3 "2014-05-25T17:36:14Z")

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Champion plug RC12ECC was the original equipment plug.

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**Author:** ![asemaster](https://avatars.discourse-cdn.com/v4/letter/a/5f9b8f/32.png) [@asemaster](https://community.cartalk.com/u/asemaster)\
**Post date:** [May 25, 2014, 6:56pm UTC](https://community.cartalk.com/t/jeep-cherokee/85169/4 "2014-05-25T18:56:09Z")

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Champion, like Rod Knox said. Stick with the same ones.

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**Author:** ![missileman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/missileman/32/1366_2.png) [@missileman](https://community.cartalk.com/u/missileman)\
**Post date:** [May 25, 2014, 8:47pm UTC](https://community.cartalk.com/t/jeep-cherokee/85169/5 "2014-05-25T20:47:46Z")

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I agree with the Champion choice.

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**Author:** ![badbearing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/badbearing/32/10683_2.png) [@badbearing](https://community.cartalk.com/u/badbearing)\
**Post date:** [May 31, 2014, 6:23pm UTC](https://community.cartalk.com/t/jeep-cherokee/85169/6 "2014-05-31T18:23:21Z")

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Im curious Why stick with OE? Ive read up on this and many have gone to Autolite

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**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\
**Post date:** [May 31, 2014, 8:53pm UTC](https://community.cartalk.com/t/jeep-cherokee/85169/7 "2014-05-31T20:53:03Z")

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Why not?

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**Author:** ![missileman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/missileman/32/1366_2.png) [@missileman](https://community.cartalk.com/u/missileman)\
**Post date:** [June 1, 2014, 3:07am UTC](https://community.cartalk.com/t/jeep-cherokee/85169/8 "2014-06-01T03:07:31Z")

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Autolite is a “good” spark plug but no better than Champion or Bosch.

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**Author:** ![Rod-Knox](https://avatars.discourse-cdn.com/v4/letter/r/a183cd/32.png) [@Rod-Knox](https://community.cartalk.com/u/Rod-Knox)\
**Post date:** [June 1, 2014, 5:17am UTC](https://community.cartalk.com/t/jeep-cherokee/85169/9 "2014-06-01T05:17:05Z")

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In the long run it is better to stick with the OE plugs. A lot of experimenting might possibly result in finding a plug that performs better but there will be a great many di$appointment$.