Notes: 714970-22721 PISTON ASSY, S is original YANMAR product. 714970-22721 PISTON ASSY, S5 is commonly used in transmissions/axles/engines L100AEDET, L100AEDEGTMTM, L100AE-DYC, L100AESYC, L100AE-DEYC, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849