Notes: 129407-21230 BUSH is original YANMAR product. 129407-21230 BUSH4 is commonly used in transmissions/axles/engines 4TNV88-BNFB, 4TNV88-BPCKS, 4TNV88-BPCKS, 4TNV88-BNFB, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849