The NGK spark plug wire set for Mercedes-Benz 420SEL (1986–1991) supplies OE-style ignition leads for that V8 platform. This 8-wire set with coil lead features a tinned copper core, high-temp silicone outer jacket and EPDM/silicone insulation to maintain dielectric strength. RFI suppression is integrated into NGK connectors and metallic resistor boots; spark plug boots are glued with silicone for watertight sealing and the set includes a limited lifetime warranty.
NGK Mercedes-Benz 420SEL 1991-1986 Spark Plug Wire Set