CDI 414-8672 Mercury/Mariner Wiring Harness 4 CylinderCDI replacement wiring harness for 4 cylinder Mercury Outboards. CDI Electronics provides superior ignition and diagnostic solutions to the marine industry. CDI delivers superior product quality and reliability, making them a cost-effective alternative to OEM-supplied components.Fits: 1989-1997 (30 & 40 JET HP) 30 JET HP 1989-1997; 40 JET HP 1989-1997; Replaces: 414-8672; 84-18672A 2; 84-18672A 4; 84-18672A 6; 84-18672A 8;