ACDelco Spark Plug Wire - 356E Part #: 356E Line: ACD ACDelco Spark Plug Wire 1 Year Limited Warranty Length (in): 9-1/4 Inch Length (mm): 235mm Outside Diameter (mm): 7mm Conductor Material: Carbon Fiberglass Boot Color: Black Insulation Material: Silicone Rubber Spark Plug End Boot Angle (Deg): 90 Degree Coil End Boot Angle (Deg): 45 Degree Show More Show Less