O ( 1936 - 1946 Early )
JDMMAL30803
The sending unit needs to have a additional ground wire that grounds sending unit to engine ground and gauge bottom center lug
Cable is steel sheathed
800 801 811 820 821 840 841 850 851 860 861 871 881
Replacement Tachometer will fit John Deere Tractor 1020 1520 2020 2120 AL30803 O ( 1936 - 1946New 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