Notes: 158552-52400 O-RING, 4E S42 is original YANMAR product. 158552-52400 O-RING, 4E S425 is commonly used in transmissions/axles/engines 4TNV94L-XHYB, 4TNV94L-PLK2, 4TNV94L-PLK, 4TNV94L-PIKA, 4TNV94L-PIK, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849