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Autolite Copper Core Spark Plugs 3924

Spark Plug, Copper Core, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

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2 Customer Reviews for Autolite 3924 - Autolite Copper Core Spark Plugs

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exactly what I needed

Summit RacingSummit Racing Verified Purchase

Quality spark plug fit perfectly

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Reviewer: BRAD from CA

Date: July 23, 2014

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Autolite Copper core Spark Plugs 3924

Summit RacingSummit Racing Verified Purchase

Truck never ran so good! New wires, cap, plugs, and coil. I have had this truck for 170k miles and have done this same tune up many times with stock replacement parts and my check engine light kept coming on from cross fire. 225k on it and it runs amazing! My truck runs better in these plugs than the fancy price plugs.

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Reviewer: DOUG from CO

Date: March 06, 2014

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  • 1

Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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