Head to head · Row Crop

John Deere 7R 270 vs John Deere 8420

John Deere 7R 270 Tractor
John DeereModel A

John Deere 7R 270

Row Crop

power
270 hp
displacement
414 ci
Cylinders
6
Forward gears
23
Full 7R 270 specs
John Deere 8420 Tractor
John DeereModel B

John Deere 8420

Row Crop

power
270 hp
displacement
496 ci
Cylinders
6
Forward gears
16
Full 8420 specs
John DeereJohn Deere 7R 270
vs
John DeereJohn Deere 8420

How they compare

Headline specs vs. the whole Row Crop

n = 1,157–1,417

Engine Power

= Effectively tied
7R 270270 hp
8420270 hp
Median Row Crop Tractor138 hp

7R 270 is in the 90th percentile; 8420 is in the 90th · 1,206 models

Engine Displacement

▲ 8420 higher · +82 ci (+20%)
7R 270414 ci
8420496 ci
Median Row Crop Tractor391 ci

7R 270 is in the 66th percentile; 8420 is in the 85th · 1,409 models

Cylinders

= Effectively tied
7R 2706
84206
Median Row Crop Tractor6

7R 270 is in the 50th percentile; 8420 is in the 50th · 1,417 models

Forward Gears

▲ 7R 270 higher · +7 (+44%)
7R 27023
842016
Median Row Crop Tractor16

7R 270 is in the 74th percentile; 8420 is in the 50th · 1,200 models

7R 270 (A)8420 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecJohn Deere 7R 270John Deere 8420Difference
ManufacturerJohn DeereJohn DeereSame
Model7R 2708420—
CategoryRow CropRow CropSame

Engine

SpecJohn Deere 7R 270John Deere 8420Difference
ManufacturerJohn DeereJohn DeereSame
Power Output270hp270hpSame
Rated RPMNot recorded2,200RPM—
Cylinders66Same
Displacement414ci496ci▲ 8420+82 ci · +20%
Bore4.2in4.6in▲ 8420+0.4 in · +10%
Stroke5in5.1in▲ 8420+0.1 in · +2%

Transmission

SpecJohn Deere 7R 270John Deere 8420Difference
TypeSelective gear fixed ratio with a range of power shift (Electronically limited)Full power shift—

Dimensions & Weight

SpecJohn Deere 7R 270John Deere 8420Difference
Length218in212in▲ 7R 270+6 in · +3%
HeightNot recorded122in—
Operating Weight24,265lb23,955lb▲ 7R 270+310 lb · +1%

Hydraulics

SpecJohn Deere 7R 270John Deere 8420Difference
System TypeClosed-center pressure flow compensatedClosed center pressure-flow compensated (PFC)—
Steering TypePowerHydrostatic power—

Power Take-off (PTO)

SpecJohn Deere 7R 270John Deere 8420Difference
TypeNot recordedIndependent with hydraulic wet discs clutch—
Speed 1Not recorded1,000rpm—
Speed 2Not recorded540rpm—
Speed 3Not recorded1,000rpm—

Tires

SpecJohn Deere 7R 270John Deere 8420Difference
Front Tire Size420/90R30Not recorded—
Rear Tire Size480/80R46480/80R46Same

Hitch & Towing

SpecJohn Deere 7R 270John Deere 8420Difference
Hitch TypeNot recordedIII/IIIN—
Hitch CategoryIII/IIINCategory 3—
Hitch PositionNot recordedRear—
Hitch CapacityNot recorded17,897lb—

Chassis & Drive

SpecJohn Deere 7R 270John Deere 8420Difference
Chassis Type4x4 MFWD 4WD4x4 MFWD 4WDSame
Drive Type4WD4WDSame
Steering TypePowerHydrostatic power—
Brake TypeNot recordedHydraulic wet disc—

Electrical

SpecJohn Deere 7R 270John Deere 8420Difference
Starter TypeElectricElectricSame

Capacities

SpecJohn Deere 7R 270John Deere 8420Difference
CoolantNot recorded9gal—

Operator Station

SpecJohn Deere 7R 270John Deere 8420Difference
TypeNot recordedCab (standard)—

Category context

Both models against the field

Engine Power

median 138 hp
A · 90th percentile (270 hp)B · 90th percentile (270 hp)

Engine Displacement

median 391 ci
A · 66th percentile (414 ci)B · 85th percentile (496 ci)

Cylinders

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

Forward Gears

median 16
A · 74th percentile (23)B · 50th percentile (16)

Operating Weight

median 12,307 lb
A · 94th percentile (24,265 lb)B · 93rd percentile (23,955 lb)
A · 7R 270B · 8420Median Row Crop Tractor
Full spec pageJohn Deere 7R 270Full spec pageJohn Deere 8420