AC PERFORMANCE high Performance 9748HH Spark Plug Wire Set Compatible with Chevrolet Cadillac GMC Hummer, 450ohms/foot

Tips: Check the spark plug wires when checking or replacing your vehicle's spark plugs. Look for any cracks or tears in the insulation and the wire connections to make sure they are secure.Terminal Installation: Step 1: Align the terminal and pull the wire from the back of the connector in order to seat the terminal. Step 2: If necessary, cut the new wire to proper length and splice with existing circuit. Step 3: If the connector is outside of the passenger compartment, apply dielectric grease to the connector. Step 4: Install the TPA, CPA and/or the secondary locks.FAQ: ▲Should I change my spark plug wires when I change my spark plugs? ▶Spark plug wires should be changed as recommended in your vehicle owner's manual. ▲Is the length of the wire or cable important for installation or performance? ▶Yes, the length of the wire or cable is important for fit and performance. You should only use the wire or cable that is designed to meet the original equipment fit, form, and function.Troubleshooting: Signs that you may be having problems with your spark plug wires or that your spark plug wires might need to be replaced are: Engine cylinder misfires. This can be due to conductor wear. Sluggish vehicle performance or reduced engine power, especially when going up hills or under a load. Rough engine idle, engine hesitation, engine surging caused by a disruption of the normal electrical current flow. Breaks or cracks in the insulation jacket or outer coating of the wires.

• Set includes 8 wires. 8mm wire, 450ohms/foot
• Wire conductor, wire length, and diameter help provide maximum spark delivery and protection
• Spark plug distributor boot shape and materials provide proper fit, installation, and water-tight seal
• Terminal design improves spark plug retention and assists installation with excellent corrosion resistance
• Insulator employs high dielectric materials
• Coil retainer prevents fretting and micro-arcing
• Strength enhancing components and thick, high temperature insulation jacket for outstanding resistance to heat, oil, and abrasion while promoting durability and protection
• Applicable Models: As shown in the second picture (Please check carefully Compatibility chart above to make sure your vehicle is listed before you purchase)
• Warranty: 2 Years / 50000 KM