Notes: 183984-74380 SCREW is original YANMAR product. 183984-74380 SCREW5 is commonly used in transmissions/axles/engines 6600TE5EBN1, 5500E-5EBG1, 100AEDEGYT5B, 5500E-5BG, 100AE-DEGY5B, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849