Notes: 129001-13100 MANIFOLD, EXHAUST is original YANMAR product. 129001-13100 MANIFOLD, EXHAUST5 is commonly used in transmissions/axles/engines YEG16SL, YEG22SL, YEG22TL, YEG12SL, YEG12TL, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849