Compatible with the Yanmar 3TN66C
800 801 811 820 821 840 841 850 851 860 861 871 881
with 72" Capillary
The sending unit needs to have a additional ground wire that grounds sending unit to engine ground and gauge bottom center lug
screw in type
Replacement Tachometer will fit John Deere Tractor 1020 1520 2020 2120 AL30803 Compatible with the Yanmar 3TN66CNew replacement counter clockwise Tachometer, will fit John Deere models: 820, 830, 1020, 1520, 1530, 2010, 2020, 2030, 2040, 2240, 2440 (s n 340999 earlier), 2630, 2640 (s n 340999 earlier) All with 8 Speed Transmission. 19 MPH. Industrial Construction models: 300, 300B, 301, 301A, 302, 302A, 400, 401, 401A, 401B, 401C, 401D, All with 8 Speed Transmission. 19 MPH. All with 8 Speed Transmission. 19 MPH Some models listed may not require this