CDI 414-6277 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: 1980-1989 (45 & 50 HP)Replaces: Mercury Marine; 84-96277A 2; 84-96277A 4;