NGK spark plug. NGK #BP4ES.
For E-Z-GO gas (4 cycle) 1991-up.
For Yamaha gas G16, G20, G21 & G22
Cross Reference Part #''s SPK ML BP4ES ;BP4ES CP;PRT-2822 EC;25523G1 EZ;25523-G1 EZ;25523G2 EZ;25523-G2 EZ;7-293 FP;25523-G2 IMC;LVBP4ES LV;NGK-BPR4ESO YA