Notes: 171353-01580 CASE ASSY, GEAR is original YANMAR product. 171353-01580 CASE ASSY, GEAR5 is commonly used in transmissions/axles/engines 3TNE82A-ECB, 3TNE82A-EPM, 4TNE84-EMAX, 4TNE84-EWA, 4TNE88-EPZ, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849