SMP 6637 Spark Plug Ignition Wires for 1978-80 Marathon C10 K30 K20 P2500 K2500

Standard Motor Products 6637 Ignition Wire Set

Standard Motor Products 6637 Single Lead Spark Plug Wire

Spark Plug Wire Set Standard 6637 fits 78-84 Chevrolet C30 GMC C3500, K3500

Standard OE Plus Performance 6637 Professional Spark Plug Wire Set

Standard Motor Products Ignition Wire Set 6874.

Ignition Wire Set Standard Motor Products 6637

Ignition Wire Set Standard Motor Products 804W