Quick view NGK NGK Copper Spark Plug Box of 4 (DCPR8E) - 4339 Compare $16.99 NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition... Add to Cart Add to Cart