This is a brand replacement / aftermarket PRIMER PUMP ASSEMBLY for YAMAHA OUTBOARD 6, 8, 9.9, 15, 25, 30, 40, 48, 50, 55, 60, 70, 75, 80, 85, 90 (2 Stroke) engines. For YAMAHA OUTBOARDpart number: 6Y1-24360-51 / -52 (Check OEM Part Number before purchase, very IMPT!!!!) For YAMAHA OUTBOARD Model: 15EL series, 15ES series, 15L series, 15ML series, 15MS series, 15S series 9.9EL series, 9.9ES series, 9.9L series, 9.9ML series, 9.9MS series, 9.9S series 25EL series, 25ES series, 25L series, 25ML series, 25MS series, 25S series 30EL series, 30ES series, 30L series, 30ML series, 30MS series, 30S series, C30EL series, F30TL series 40EL series, 40ES series, 40L series, 40ML series, 40MS series, 40S series, 40TL series C40EL series, C40MS series, C40TL series, F40E series, F40M series, F40TL series E48ML series 50EJ, 50ES, 50EL, 50ET, 50TL, C50TL, F50TL, P50TL, PR50L, PRO50L, T50TL series C55, CV55 series 60TL, E60, F60T, P60T, T60TL series 70ET, 70TL, 70TR, C70TL series E75M series C85T, CV85E series 90ET, 90TJ, 90TL, C90TL series If you have any concerns regarding the suitability of the item please ask before purchase. If the part looks the same like yours is not always the right one for your outboards so please double check.