Sierra 18-8820-1 Spark Plug Wiring SetSierra replacement spark plug wire set for 8 cylinder EST Electronic ignition.Features: Ignition Type: EST Electronic; Cyl.: 8; Kevlar core for maximum durability and long life; Durable stainless steel wound conductor for maximum horsepower and engine performance; Premium silicone jacketing and boots for the ultimate in high temperature protection; Superior RFI suppression for the most sensitive electronic system; Corrosion resistant stainless steel spark plug and distributor terminals for maximum conductivity; Lead Lengths: 2 Spark Wires 27"; 1 Spark Wire 32"; 2 Spark Wires 38"; 3 Spark Wires 42"; 1 Coil Wire 14"; Interchangeable With: Mallory; 9-28029; OMC Stern Drive; 503754;