Notes: 129C00-13901 VALVE, EGR is original YANMAR product. 129C00-13901 VALVE, EGR5 is commonly used in transmissions/axles/engines 4TNV88C-PYBU, 4TNV88C-PYB, 4TNV88C-PTB1, 4TNV88C-PTB, 4TNV86CT-PTB1, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849