SMP HT Leads / Spark Plug Wires #6641 / For Checker Chevy GMC Pontiac

#6641 Specifications. HT Leads / Spark Plug Wires. CHECKER MARATHON 1980-1982. Total Number of Leads 6. Highest quality, high temperature spark plug boots. Spark Plug Wire Lead 1 28.5". Spark Plug Wire Lead 2 34.5".

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