Notes: 129C21-12500 AIR CLEANER ASSY is original YANMAR product. 129C21-12500 AIR CLEANER ASSY2 is commonly used in transmissions/axles/engines 4TNV88C-PTB, 4TNV88C-PTB1, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849