Notes: 129C20-16220 CASE, DOC is original YANMAR product. 129C20-16220 CASE, DOC4 is commonly used in transmissions/axles/engines 4TNV88C-DCP, 4TNV88C-DHKS, 4TNV88C-DHKS, 4TNV88C-DCP, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849