John Deere 840 VS Allis Chalmers HD16A specs comparison

John Deere 840
General InfosMake | John Deere |
Model | 840 |
Country | United states |
Production | From 1976 Until 1986 |
Price | - |
Tractor type | Utility tractor |
Fuel | diesel |
Service repair manual | John Deere 840 Manual |
Dimensions, sizes and tires
AG front tires | 6.50-16 |
AG rear tires | 12.4-32 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 5004 lbs or 2269 kg |
Length | 138 inches [350 cm] |
Width | 65.4 inches [166 cm] |
Height | 94.1 inches [239 cm] |
Wheelbase | 74.4 inches [188 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | 53.5 to 73.2 inches |
Front tread size | 49.6 to 79.5 inches |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 179 ci or 2.9 L |
Cylinders | 3 cylinders |
Engine power | 37.5 hp or 28.0 kW |
Engine RPM | 2400 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | direct injection |
Fuel tank size | 20.6 gal or 78.0 L |
Oil capacity | 7.4 qts or 7.0 L |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | John Deere 840 Parts |
Batteries number | 2 |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | - |
Ground force | negative |
Charging system | alternator |
Charging Volts | - |
Charging Amps | 33 amps |
Trans system | - |
Trans type | two-speed power shift |
Trans gears | 16 forward and 8 reverse |
Clutch system | dry disc |
Wheel drive | 4x2 2WD |
Final drive | planetary |
Steering | manual |
Braking system | hydraulic wet disc |
Cabin type | Four-post ROPS |
Differentiel lock | - |
System | closed center |
Valves | - |
Pump flow | 6.1 gpm or 23.1 lpm |
SVC flow | - |
Steering flow | - |
Tank capacity | 10.8 gal or 40.9 L |
Hydraulic pressure | - |
Max flow | - |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | - |
Fuel consumption | - |
Pulling power | - |
Claimed power | 33.5 hp or 25.0 kW |
Real power | - |
Engine @RPM | 1000@2070 (rpm) |
PTO Clutch | dry disc |
Rear PTO | live |
Rear PTO RPM | 540 (rpm) |
Front PTO | optional |
Front PTO RPM | 1000 (rpm) |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | - |
Hitch system | - |
Rear hitch | II/I |
Rear hitch lift | 4878 lbs or 2212 kg |
Front hitch | - |
Front hitch lift | - |

Allis Chalmers HD16A
General InfosMake | Allis Chalmers |
Model | HD16A |
Country | United states |
Production | From 1955 Until 1970 |
Price | - |
Tractor type | - |
Fuel | - |
Service repair manual | Allis Chalmers HD16A Manual |
Dimensions, sizes and tires
AG front tires | - |
AG rear tires | - |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 31500 lbs 14288 kg |
Length | 181.1 inches 459 cm |
Width | 96 inches 243 cm |
Height | 90.5 inches 229 cm |
Wheelbase | - |
Ground clearance | 14.4 inches 36 cm |
Turning radius | - |
Rear tread size | - |
Front tread size | - |
Turning radius | - |
Horsepower and engin specs
Engine capacity | - |
Cylinders | 6 cylinders |
Engine power | 148 hp 110.4 kW |
Engine RPM | 1600 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | - |
Fuel injection | - |
Fuel tank size | 100 gal 378.5 L |
Oil capacity | - |
Oil change | - |
Starter motor | - |
Starter volts | 24 V |
Parts And Accessories | Allis Chalmers HD16A Parts |
Batteries number | 2 |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | - |
Ground force | - |
Charging system | - |
Charging Volts | - |
Charging Amps | - |
Trans system | - |
Trans type | gear |
Trans gears | 6 forward and 3 reverse |
Clutch system | - |
Wheel drive | crawler |
Final drive | - |
Steering | hydraulic clutches |
Braking system | contracting band |
Cabin type | Open operator station |
Differentiel lock | - |
System | - |
Valves | - |
Pump flow | - |
SVC flow | - |
Steering flow | - |
Tank capacity | - |
Hydraulic pressure | - |
Max flow | - |
Drawbar type | - |
Claimed power | 125 hp 93.2 kW |
Drawbar horsepower | - |
Fuel consumption | - |
Pulling power | - |
Claimed power | - |
Real power | - |
Engine @RPM | - |
PTO Clutch | - |
Rear PTO | - |
Rear PTO RPM | - |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | - |
Hitch system | - |
Rear hitch | - |
Rear hitch lift | - |
Front hitch | - |
Front hitch lift | - |
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Useful links and guides ....
- John Deere provided us with the latest version of its 840 service repair manual
- Find All mechanical and electrical parts and accessories of John Deere 840 farm-tractor here
- Get your Allis Chalmers HD16A manual book version
- Cabine, electrical And mechanical parts for Allis Chalmers HD16A farm-tractor here