Notes: 123912-13531 SILENCER is original YANMAR product. 123912-13531 SILENCER5 is commonly used in transmissions/axles/engines 4TNE106T-NS, 4TNE106T-G1A, 4TNE106T-SA, 4TNE106-G1A, 4TNE106-SA, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849