Notes: 22351-040012 PIN, SPRING 4.0X12 is original YANMAR product. 22351-040012 PIN, SPRING 4.0X122 is commonly used in transmissions/axles/engines 4TNV88-BPCKS, 4TNV88-BPCKS, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849