Notes: 129150-02931 BEARING, THRUST is original YANMAR product. 129150-02931 BEARING, THRUST5 is commonly used in transmissions/axles/engines 4TNV88-ZSTB1, 4TNV88-ZSTB, 4TNV88C-PYBU, 4TNV88C-PTB1, 4TNV88C-PTB, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849