Standard Products: 9952 - Spark Plug Wire Set. Item Specifics Coil Wire: 12.5" Core Construction: Metallic Core Cylinders: 8 Grease Pack: Teflon Silicone Grease Pack Insulation: Silicone Jacket: Silicone Spark Plug Wire Lead 1: 22" Spark Plug Wire Lead 2: 24" Spark Plug Wire Lead 3: 26" Spark Plug Wire Lead 4: 26" Spark Plug Wire Lead 5: 30". Primary Vehicle CHEVROLET 97-90, GMC 97-90. Description Heavy Duty Truck Wire Set. See Item Specifics section for additional specifications about this part.To confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table. Also review the notes section in the compatibility chart for additional specifications about this part.