Compare/John Deere 2840 vs John Deere 2940

John Deere 2840 vs John Deere 2940

Verdict: John Deere 2840 vs John Deere 2940

The John Deere 2840 and the John Deere 2940 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 81 hp. John Deere 2840 is the lighter machine (3,946 kg vs 4,279 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere 2940 is the newer design (1980 vs 1977). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.

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Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

John Deere

Fit score

Best match

Clear

John Deere

Fit score

Best match

Clear

Rated power

81 hp

Confidence

98%

Guide price

—

Overview

Manufacturer

John DeereReference

With 18.4-34 rear tires.Reference

Final drives

planetaryReference

Differential lock

mechanical rearReference

Steering

power assistReference

—

Variants

3130

similar John Deere modelReference

—

Engine

Drawbar (tested)

48.4 kWReference

47.9 kWReference

Displacement

5.4 LReference

5.9 LReference

Bore/Stroke

102 x 110 mmReference

106 x 110 mmReference

Air cleaner

paper elementsReference

—

Compression

17.0:1Reference

16.8:1Reference

Rated RPM

2500Reference

Starter volts

12Reference

Coolant capacity

4.7 LReference

18.9 LReference

Power at rated engine speed

60.1 kWReference

60.5 kWReference

Max power

48.4 kWReference

47.9 kWReference

Drawbar (claimed)

—

50.7 kWReference

Idle RPM

—

800-2660Reference

Operating RPM

—

1500-2500Reference

Torque

—

318.7 NmReference

Torque RPM

—

1400Reference

Firing order

—

1-5-3-6-2-4Reference

Intake valve clearance

—

0.356 mmReference

Exhaust valve clearance

—

0.457 mmReference

Oil capacity

—

60.0 LReference

Oil change

—

100 hReference

Transmission

sliding gearReference

John Deere TSS High-LowReference

Gears

6 forward and 3 reverseReference

16 forward and 8 reverseReference

PTO & Hydraulics

PTO (tested)

60.1 kWReference

60.5 kWReference

Hydraulic system

48.8 LReference

59.8 LReference

Type

two-speed power shiftReference

partial power shiftReference

Capacity

48.8 LReference

59.8 LReference

Valves

2Reference

Pump flow

87.1 lpmReference

Rear Type

IIReference

Control

draft sensingReference

position control and lower-link draft sensingReference

Rear PTO

independentReference

Clutch

dry discReference

—

Rear PTO Type

540/1000Reference

Power at rated PTO speed

56.9 kWReference

60.7 kWReference

PTO (claimed)

—

61.1 kWReference

Pressure

—

155.1 barReference

Rear lift (at 24"/610mm)

—

1088 kgReference

Capacities

Fuel

106.0 LReference

125.9 LReference

Dimensions

Wheelbase

246 cmReference

258 cmReference

Weight

3946 kgReference

4279 kgReference

Front tire

7.50-18Reference

10.00-16Reference

Rear tire

18.4-34Reference

—

Ag front

7.50-18Reference

—

Ag rear

16.9-38Reference

—

Length

406 cmReference

418 cmReference

Width

228 cmReference

229 cmReference

Height (steering wheel)

187 cmReference

—

Operating weight

3946 kgReference

—

Ballasted weight

4762 kgReference

—

Clearance (front axle)

53 cmReference

65 cmReference

Front tread

175 to 238 cmReference

160 to 238 cmReference

Rear tread

154 to 228 cmReference

175 to 231 cmReference

2WD Rear tire

—

18.4-34Reference

2WD Standard tires (ag)

—

Front: 10.00-16. Rear: 18.4-34Reference

4WD Standard tires (ag)

—

Front: 12.4-28. Rear: 16.9-38Reference

4WD Optional tires (ag)

—

Front: 13.6-24. Rear: 18.4-34Reference

Height (hood)

—

170 cmReference

Height (exhaust)

—

287 cmReference

Operating

—

4279 kgReference

Ballasted

—

4830 kgReference

Max Drawbar

—

997 kgReference

John Deere 2840 attachments

2840 Serial Number Location

2840 Serial Numbers

1977

214909Reference

—

1978

264711Reference

—

1979

304654Reference

—

Electrical

Ground

negativeReference

Charging system

alternatorReference

Batteries

2Reference

Battery volts

12Reference

Charging amps

—

33Reference

Battery AH

—

88Reference

Test results

Fuel use

19.7 l/hourReference

18.9 l/hourReference

Max pull

3803 kgReference

3447 kgReference

Speeds

2940 Serial Numbers

1980

—

350000Reference

1981

—

390496Reference

1982

—

418953Reference

Location:

—

Serial number plate on the front-right of the Deere 2940 frame, above the front axle.Reference

Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.