Notes: 129979-55810 SENSOR ASSY, LEVEL is original YANMAR product. 129979-55810 SENSOR ASSY, LEVEL2 is commonly used in transmissions/axles/engines 4TNV86CT-DGWL, 4TNV86CT-DGWL, . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849