Head to head · Row Crop

John Deere 4840 vs John Deere 8120

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John DeereModel A

John Deere 4840

Row Crop

power
200 hp
displacement
466 ci
Cylinders
6
Forward gears
8
Full 4840 specs
Image not recorded
John DeereModel B

John Deere 8120

Row Crop

power
200 hp
displacement
496 ci
Cylinders
6
Forward gears
16
Full 8120 specs
John DeereJohn Deere 4840
vs
John DeereJohn Deere 8120

How they compare

Headline specs vs. the whole Row Crop

n = 279–1,417

Engine Power

= Effectively tied
4840200 hp
8120200 hp
Median Row Crop Tractor138 hp

4840 is in the 77th percentile; 8120 is in the 77th · 1,206 models

Engine Displacement

▲ 8120 higher · +30 ci (+6%)
4840466 ci
8120496 ci
Median Row Crop Tractor391 ci

4840 is in the 82nd percentile; 8120 is in the 85th · 1,409 models

Cylinders

= Effectively tied
48406
81206
Median Row Crop Tractor6

4840 is in the 50th percentile; 8120 is in the 50th · 1,417 models

Forward Gears

▲ 8120 higher · +8 (+100%)
48408
812016
Median Row Crop Tractor16

4840 is in the 16th percentile; 8120 is in the 50th · 1,200 models

4840 (A)8120 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecJohn Deere 4840John Deere 8120Difference
ManufacturerJohn DeereJohn DeereSame
Model48408120—
CategoryRow CropRow CropSame

Engine

SpecJohn Deere 4840John Deere 8120Difference
ManufacturerJohn DeereJohn DeereSame
Power Output200hp200hpSame
Rated RPM2,200RPM2,200RPMSame
Cylinders66Same
Displacement466ci496ci▲ 8120+30 ci · +6%
Bore4.6in4.6inSame
Stroke4.8in5.1in▲ 8120+0.3 in · +6%

Transmission

SpecJohn Deere 4840John Deere 8120Difference
TypeFull power shiftFull power shiftSame

Dimensions & Weight

SpecJohn Deere 4840John Deere 8120Difference
Length177in210in▲ 8120+33 in · +19%
Width96inNot recorded—
Height117in120in▲ 8120+3 in · +3%
Operating Weight18,000lb19,105lb▲ 8120+1,105 lb · +6%

Hydraulics

SpecJohn Deere 4840John Deere 8120Difference
System TypeClosed centerClosed center pressure-flow compensated (PFC)—
Steering TypePowerHydrostatic power—

Power Take-off (PTO)

SpecJohn Deere 4840John Deere 8120Difference
TypeIndependentIndependentSame
Speed 11,000rpm540rpm▲ 4840+460 rpm · +85%
Speed 2Not recorded1,000rpm—

Hitch & Towing

SpecJohn Deere 4840John Deere 8120Difference
Hitch TypeThree-Point HitchIII/IIIN—
Hitch CategoryIIIIIIN—
Hitch PositionRearRearSame
Hitch Capacity8,290lb12,353lb▲ 8120+4,063 lb · +49%

Chassis & Drive

SpecJohn Deere 4840John Deere 8120Difference
Chassis Type4x2 2WDNot recorded—
Drive Type2WD4x2 (2WD)—
Steering TypePowerHydrostatic power—
Brake TypeDifferential hydraulic wet discHydraulic wet disc—

Electrical

SpecJohn Deere 4840John Deere 8120Difference
Starter TypeElectricElectricSame

Capacities

SpecJohn Deere 4840John Deere 8120Difference
Coolant10gal9gal▲ 4840+1 gal · +11%

Operator Station

SpecJohn Deere 4840John Deere 8120Difference
TypeSound-Gard CabCab (standard)—

Category context

Both models against the field

Engine Power

median 138 hp
A · 77th percentile (200 hp)B · 77th percentile (200 hp)

Engine Displacement

median 391 ci
A · 82nd percentile (466 ci)B · 85th percentile (496 ci)

Cylinders

median 6
A · 50th percentile (6)B · 50th percentile (6)

Forward Gears

median 16
A · 16th percentile (8)B · 50th percentile (16)

Operating Weight

median 12,307 lb
A · 78th percentile (18,000 lb)B · 81st percentile (19,105 lb)
A · 4840B · 8120Median Row Crop Tractor
Full spec pageJohn Deere 4840Full spec pageJohn Deere 8120