3.0L & 2.5L Delco EST marine electronic Distributor kit. For 1967-2011 3.0L & 2.5L Engines. Includes: 3.0L Electronic Distributor, Coil, Spark Plug Wires (color may vary black/blue), Timing shunt, Pig-tail plug, and Coil-to-Distributor wire. Replaces Sierra 18-5512.

4.3L 262cid V-6 Engines 1985-Currrent Electronic EST Distributor kit. Includes: Coil, Spark Plug Wires, Timing shunt, Pig-tail plug, Coil-to-distributor wire. Replaces Sierra 18-5513.

5.7L - 7.4L Delco style Voyager EST marine electronic distributor kit. For 1967-2011 5.7L-7.4L Engines. Includes: Coil, Spark Plug Wires, Timing shunt, Pig-tail plug, and Coil-to-distributor wire. Replaces Sierra 18-5514.