CDI 173-1130 Johnson Evinrude Replacement Driver Coil (Coil Only)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. For manual start engines; replacement driver coil only; Fits: 18 HP 1973-1976 ; 20 HP 1973-1976; 25 HP 1973-1976; Replaces: 763809; 581130; 18-5163; 173-1130; Frame Not Included