Drag Specialties - Performance Spark Plugs fits '57-'78 Sportster Models

Drag Specialties - Performance Spark Plugs fits '57-'78 Sportster Models

This spark plug features a copper core electrode, which prevents oxidation and corrosion, provides good electrical and heat conductivity and makes long spark plug service life. The insulator is constructed from 95% pure alumina, which has strong resistance to heat shock and outstanding insulation. The multi-layer gaskets and heat crimping process guarantee a leak-free, gas-tight seal. Overall, the plug has a one-of-a-kind look with a black ceramic body and a bold red logo/script.

Features

• Multi-rib design of the insulator eliminates flashover
• Nickel-plated housing prevents oxidation and corrosion
• Sold in pairs