CDI Mercury Copper Core Spark Plug Wire Replacement spark plug wire for CDM Modules. Replaces: 84-821945A61, 934-7124 Part Number CDI-934-7124

CDI High Performance Spark Plug Wires 1994-2006 (85 JET, 90 & 115HP) 60 Degree Engines. Qty. 4 Replaces: 18-8839-1, 931-4922 Part Number CDI-931-4922

CDI Inline Neon Spark Tester - 511-9764 Ideal for personal watercraft. Sealed design is an added safety factor that further reduces the possibility of ignitiing gas fumes, especially in the hull...

Enclosed 8 Cyl., adjustable spark gap tester. Has heavy-duty wire for mounting in any position. Helps reduce the possibility of igniting gas fumes (Wires sold separately) Part...

CDI Spark Tester 1-8 Cylinder - 519-S48 Spark Tester with external leads for those hard to reach locations. Capable of checking 1-8 cylinders. Tester can divide in two section for testing...