EZGO 4-Cycle Engines Spark Plug Wire Set Used on 1993-2006 e-z-go gas txt, medalist, 4/6-passenger shuttle, marathon (4-cycle), pc4/pc4gx/pc4gxi, Used on st 350, st sport, st sport 2+2, st express, clays car, shuttle 950, workhorse 800/1200, refresher and 1992-current vehicles with a 4-cycle, 295cc & 350cc (premci-mci) engine xi300/xi500/xi804, 804, 875, Responsible for bringing the electrical spark to the spark plug in order for the fuel inside the engine cylinders to be ignited Includes 2 spark plug wires, black wireswith silicon bootsand 90 terminal ends