CDI 931-9215 Spark Plug Wire 24 Inch Single Booted Screw TerminalCDI 931-9215 is a replacement spark plug wire for Johnson/Evinrude and Mercury engines. For 1967-1972 Johnson/Evinrude Outboards and 1966-1977 Mercury Marine engines. Spark Plug Wire; Length 24"; Single Booted With Screw Terminal; Replacement High Tension Wire; Interchangeable with the following part numbers: 18-5229-9-1; 84-813415A1; 84-813715A1; 84-99215A25; 84-99215AA29; 931-9215;