Ignitions and Electrical Ignition Components

Crown Automotive

Spark Plug for Numerous 81-90 Jeep Models w/ 4.2L or 2.5L (Carb) Engines Crown Automotive

$3.50

SKU: C01X 4318138

In Stock
In Stock
Ships by Jul 29
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Crown Automotive Spark Plug 4318138 is a Copper Plus spark plug designed for Jeep vehicles. It features a gasket seat, 14mm thread size, and a .750 in. reach. This resistor spark plug is constructed with nickel copper alloy for both the tip and core electrode, utilizing a projected center electrode type and a single ground strap.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandCrown Automotive
Part NumberC01X 4318138

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy