Spark Plug, (Non Resistor, Copper Core), 1978-1979 CJ5 (3.8L/4.2L), 1978-1979 CJ7 (3.8L/4.2L), 1978-1987 SJ (4.2L/5.9L/6.6L) Is your Jeep running rough? Changing the spark plugs will usually help it run better. Over time the electrode will erode causing a larger spark gap. Spark plugs are usually easy to replace. Get high quality replacement spark plugs from Omix-ADA to keep your Jeep running smooth. It may even help your gas mileage.

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Call Overly's Offroad at 865-995-9800 for installation or help.

PROP 65 INFO FOR CA RESIDENTS: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For general info. on Prop 65 see: p65warnings.ca.gov