Spark Plugs

Designed for a sharper, leaner spark with tapered nickel/chrome alloy tip and copper center electrodeMade in the U.S.A.

Designed for a sharper, leaner spark with tapered nickel/chrome alloy tip and copper center electrodeMade in the U.S.A.

Designed for a sharper, leaner spark with tapered nickel/chrome alloy tip and copper center electrodeMade in the U.S.A.

Designed for a sharper, leaner spark with tapered nickel/chrome alloy tip and copper center electrodeMade in the U.S.A.

Superior construction for serious powerVersatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hotFeatures high alumina ceramics for...

Superior construction for serious powerVersatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hotFeatures high alumina ceramics for...

Six times harder than platinum, iridium withstands temperatures up to 4,000??FBecause the iridium electrodes of these plugs can be shrunk to only 0.4mm, voltage requirements decrease while firing...

Superior construction for serious powerVersatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hotFeatures high alumina ceramics for...

Superior construction for serious powerVersatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hotFeatures high alumina ceramics for...

Superior construction for serious powerVersatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hotFeatures high alumina ceramics for...

Superior construction for serious powerVersatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hotFeatures high alumina ceramics for...

Copper Plus spark plug has a copper core center electrode that allows for accurate control of heat range, optimizing performance and longevity of the spark plugPatented SAC-9 semi-conductor resistor...