Compare/John Deere 4640 vs John Deere 7185J

John Deere 4640 vs John Deere 7185J

Verdict: John Deere 4640 vs John Deere 7185J

The John Deere 4640 and the John Deere 7185J are both tractors — here is how they stack up on the figures that matter. John Deere 7185J leads on rated power with 157 hp against 156 hp. John Deere 7185J is the lighter machine (8,101 kg vs 14,350 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere 7185J is the newer design (2010 vs 1978). In short: choose the John Deere 7185J for outright pulling power, or the John Deere 4640 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

Tune the fit score

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

156 hp

157 hp

Confidence

98%

Guide price

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Overview

Manufacturer

John DeereReference

Clutchless shift-on-the-move power shift between all eight forward and four reverse gears. Inching pedal provided for hooking up implements and other precision work.Reference

Four gears (1-4) in four ranges (A-D) with left-hand power shuttle. Push-button power shifting between gears, synchronized range shifting using the clutch.Reference

Original price

$53,123 (1982 Power Shift Cab 2WD )Reference

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Drive

4x4 HFWD 4WDReference

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Differential lock

pedal-actuated hydraulicReference

electro-hydraulicReference

Steering

hydrostatic powerReference

Trailer brakes

—

air brake optionalReference

Engine

Drawbar (tested)

98.8 kWReference

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Displacement

7.6 LReference

6.8 LReference

Bore/Stroke

116 x 121 mmReference

106 x 127 mmReference

Pre-heating

etherReference

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Compression

15.5:1Reference

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Rated RPM

2200Reference

2100Reference

Idle RPM

800-2400Reference

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Operating RPM

1500-2200Reference

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Firing order

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

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Starter volts

12Reference

Oil capacity

18.9 LReference

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Coolant capacity

36.0 LReference

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Power at rated engine speed

116.3 kWReference

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Max power

98.8 kWReference

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Fuel Type

DieselReference

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No of Cylinders

6-cylinderReference

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Rated engine speed

2,200 | 1,500-2,200 RPMReference

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Bore and stroke

4.5,625x4.75 inchesReference

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Compression ratio

15.5:1Reference

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Cooling system

liquid-cooled | 38 qtsReference

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Fuel tank

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391.7 LReference

Engine

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138.0 kWReference

Power

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138.0 kWReference

Fuel system

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mechanical injection pump with electronic governorReference

Torque

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826.1 NmReference

Torque RPM

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1400Reference

Transmission

John Deere PowerShiftReference

John Deere AutoQuadReference

Gears

8 forward and 4 reverseReference

16 forward and reverseReference

forward and reverse options

16 forward and 6 reverse | 8 forward and 4 reverseReference

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PTO & Hydraulics

PTO (claimed)

115.6 kWReference

117.1 kWReference

PTO (tested)

116.6 kWReference

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Hydraulic system

62.5 LReference

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Type

full power shiftReference

partial power shiftReference

Capacity

62.5 LReference

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Valves

2 or 3Reference

2 to 4Reference

Pump flow

87.1 lpmReference

174.1 lpmReference

Rear Type

III/IIINReference

3/3NReference

Rear lift

3323 kgReference

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Rear PTO

independentReference

Rear PTO Type

1000 (1.75)Reference

540/1000Reference

Power at rated PTO speed

117.1 kWReference

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Pressure

—

210.0 barReference

SCV flow

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169.9 lpmReference

Control

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electronic lower-link sensingReference

Rear lift (at ends)

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10441 kgReference

Rear lift (at 24"/610mm)

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6350 kgReference

Clutch

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hydraulic wet discReference

Engine RPM

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1000@1950Reference

Capacities

Fuel

314.2 LReference

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Dimensions

Wheelbase

300 cmReference

286 cmReference

Weight

14350 to 15700 poundsReference

8101 kgReference

Front tire

11.00-16Reference

16.9-30Reference

Rear tire

18.4-38Reference

20.8-42Reference

Ag front

9.50-20Reference

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Ag rear

18.4-42Reference

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Length

434 cmReference

610 cmReference

Width

299 cmReference

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Height (cab)

297 cmReference

314 cmReference

Ground clearance

37 cmReference

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Clearance (front axle)

66 cmReference

53 cmReference

Clearance (rear axle)

71 cmReference

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Rack-and-pinion rear axle

99 by 2997 mmReference

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Front tread

147 to 254 cmReference

152 to 213 cmReference

Rear tread

152 to 334 cmReference

158 to 321 cmReference

Shipping

6509 kgReference

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Operating

7121 kgReference

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Ballasted

8430 kgReference

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Standard tires (ag)

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Front: 16.9-30. Rear: 20.8-42Reference

Optional tires (ag)

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Front: 480/70R28. Rear: 800/65R32Reference

Ballasted weight

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9902 kgReference

Rear axle

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99 by 2806 mmReference

John Deere 4640 attachments

4640 Serial Number Location

4640 Serial Numbers

1978

1000Reference

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1979

7422Reference

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1980

13860Reference

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1981

19459Reference

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1982

25729Reference

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Electrical

Ground

negativeReference

Charging system

alternatorReference

Batteries

2Reference

Battery volts

6Reference

12Reference

Battery options

2 | 2Reference

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Charging amps

—

90Reference

Battery AH

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100Reference

Test results

Fuel use

37.5 l/hourReference

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Max pull

7252 kgReference

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General

Make & Model

John DeereReference

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PTO

Rear PTO Power

AvailableReference

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Hydraulics

Hydraulics Type

closed centerReference

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Remote Valves

2 or 3Reference

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Rear Hitch category (SAE designation)

Category III/IIINReference

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Dimensions & weight

Height Over Cab

297.2 cmReference

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Overall Height

297.2 cmReference

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Overall Length

434.3 cmReference

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Overall Width

243.8 cmReference

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Front axle clearance

66 cmReference

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Wheels & tyres

Rear wheel tread range

18.4-38, 24.5-32, 30.5-32, 20.8-38, 18.4-42 inchReference

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Front Wheel tread range

11.00-16, 10.00-16, 14L-16.1, 16.5L-16.1, 9.50-20Reference

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Steering & brakes

Steering type

hydrostatic powerReference

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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.