John Deere 850


John Deere 850 tractor photo
1978 - 1989
50 Compact Series
Compact Utility tractor
Yanmar built
Series:750850950
870
Production
Distributor:John Deere
Manufacturer:Yanmar
Type:Compact Utility tractor
Factory:Japan
Original price:$11,000 (1989 )
John Deere 850 Power
Engine (gross):25 hp
18.6 kW
Drawbar (claimed):19 hp
14.2 kW
PTO (claimed):22 hp
16.4 kW
Drawbar (tested):17.77 hp
13.3 kW
PTO (tested):22.27 hp
16.6 kW
power test details ...
Mechanical
Chassis:4x2 2WD
 4x4 MFWD 4WD
Steering:manual
 power*Optional
Brakes:differential mechanical expanding shoe
Cab:Two-post ROPS.
Transmission:8-speed gear
Transmission details ...
Capacity
Fuel:8.5 gal
32.2 L
Hydraulic system:4.75 gal
18.0 L
 5.25 gal
19.9 L *After 1984
Hydraulics
Type:open center
Capacity:4.75 gal
18.0 L
 5.25 gal
19.9 L *After 1984
Tractor hitch
Rear Type:I
Power Take-off (PTO)
Rear PTO:transmission*Early models, through the 1983 model year.
 live two-stage clutch*Introduced in 1984, tractor serial number 16001.
Rear RPM:540 (1.375)
Engine RPM:540@2258
Dimensions & Tires
Wheelbase:64 inches
162 cm
Weight:2400 lbs
1088 kg
Front tire:5.00-15
Rear tire:9.5-24
Full dimensions and tires ...
John Deere 850 attachments
72" mid-mount mower deck
blade
front-end loader
backhoe
Attachment details ...
850 Serial Numbers
Location:Serial number plate on the rear of the John Deere 850, below the PTO shaft.
1978:1000
1979:3859
1980:7389
1981:11338
1982:12481
1983:14183
1984:16006
1985:18001
1986:22001
1987:25501
1988:28337
Final:30852

how to read serial numbers...

Electrical
Ground:negative
Battery volts:12
Page information
Last update:February 28, 2019
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