DRAG SPECIALTIES Spark Plugs - '71-'85 XL E18-6658SDS 3-3/8" Programmable Electronic Speedometer Features die-cast construction

Features die-cast construction

Accept OEM or Hastings rings (order separately)

Tach adapter required for single-fire ignitions (pre-"04 models only)

110 dB signal

DRAG SPECIALTIES Spark Plugs - '71-'85 XL E18-6658SDS 3-3/8" Programmable Electronic Speedometer Features die-cast constructionPlugs have a unique look with their black ceramic body and bold red logo script Insulator is made of 95% pure alumina; features strong resistance to heat shock and superior insulation Multi rib design of insulator eliminates flashover Nickel plated housing prevents oxidation and corrosion Multilayer gaskets and heat crimping process ensure a leak free, gas tight fit Copper core electrode prevents oxidation and corrosion and has good electrical and