SuperStock 4000 Series 8mm Spark Plug Wires

The ACCEL SuperStock 4000 series spark plug wire sets, like the 4039B, are engineered to enhance OE ignition systems, providing elevated spark delivery for street-driven vehicles. These wires utilize an 8mm diameter, blue silicone jacket that is rated for temperatures up to 450 degrees Fahrenheit. The core construction features a tightly woven copper conductor, offering exceptionally low resistance that is beneficial for points and magneto systems, or any application where minimal resistance is desired. Constructed with an EPDM (Ethylene Propylene Diene Monomer) insulation over a fiberglass braid, these wires exceed SAE specifications for durability and performance. The silicone boots provide a secure connection and are rated to meet or exceed OE temperature specifications. The 90-degree spark plug boot angle ensures compatibility with a wide range of engine configurations. ACCEL also states that these wires are compatible with both pre and post HEI vehicles, and are available for custom-fit, universal, and import applications. This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations. The product comes with a Manufacturer's Limited 1 Year Warranty.