Notes: 121254-77530 SCREW, POLE CORE is original YANMAR product. 121254-77530 SCREW, POLE CORE5 is commonly used in transmissions/axles/engines 4TNE88-EMS, 4TNE88-MS, 4TNE84-EMSA, 4TNE84-EMS, 4TNE84-DS, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849