Edelbrock Wire Separator Kit 22799 will organize spark plug wires on 4 - , 6 - and 8 - cylinder engines and includes six separators (two 2 - wire, two 3 - wire and two 4 - wire) designed to work with wire diameters up to 8.5mm. Edelbrock Separators are constructed of glass - fiber - reinforced nylon for durability that resists temperature up to 464 degrees. Each Separator features a click - lock folding design that securely hold wires in place to prevent cross - firing between cylinders. Separators have a textured black finish to blend in with any engine compartment and the Edelbrock logo lets everyone know that you've chosen the best.