Sierra 18-8807-1 Spark Plug Wiring SetSierra replacement spark plug wiring set for OMC Stern Drives. Includes five wires, including a coil wire. Fits OMC 2.3L 4 Cyl. Engines (1987-90)Features: 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.; Specifications: Cyl. : 4; Ignition Type: Conventional; 1 Spark Wire 23"; 3 Spark Wire 29"; 1 Coil Wire 13"; Interchangeable with: Mallory; 9-28035; OMC Stern Drive; 503747;