Autolite 3923 Copper Spark Plug

The Autolite 3923 Copper Spark Plug is guaranteed to deliver quick starts, good fuel economy and smooth acceleration. Autolite Copper Core plugs are your industry standard. Autolite makes plugs for American, Japanese, European, and Korean cars as well as plugs for Lawn & Garden and Power Sports. As a leading supplier of spark plugs, the Autolite brand has the right ignition products for your application, regardless of make or model, import or domestic.

AUTOLITE Copper Spark Plugs: Guaranteed to deliver quick starts, good fuel economy and smooth acceleration Copper core center electrode for higher thermal conductivity Specially engineered high nickel alloy center and ground electrode for extended life High alumina ceramic for high dielectric strength Leak proof, heat fused internal seal for durability Multi-rib insulator prevents flash-over 2 year limited warranty