ACDelco Spark Plug Wire - 346W Part #: 346W Line: ACD ACDelco Spark Plug Wire 1 Year Limited Warranty Length (in): 21-15/16 Inch Length (mm): 557mm Outside Diameter (mm): 7mm Conductor Material: Carbon Fiberglass Boot Color: Black Insulation Material: Silicone Rubber Spark Plug End Boot Angle (Deg): Straight Coil End Boot Angle (Deg): Straight Show More Show Less