Head to head · Row Crop

John Deere 8270R vs John Deere 8420

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John DeereModel A

John Deere 8270R

Row Crop

power
257 hp
displacement
548 ci
Cylinders
6
Forward gears
16
Full 8270R 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 8270R
vs
John DeereJohn Deere 8420

How they compare

Headline specs vs. the whole Row Crop

n = 1,140–1,417

Engine Power

▲ 8420 higher · +13 hp (+5%)
8270R257 hp
8420270 hp
Median Row Crop Tractor138 hp

8270R is in the 88th percentile; 8420 is in the 90th · 1,206 models

Engine Displacement

▲ 8270R higher · +52 ci (+10%)
8270R548 ci
8420496 ci
Median Row Crop Tractor391 ci

8270R is in the 96th percentile; 8420 is in the 85th · 1,409 models

Cylinders

= Effectively tied
8270R6
84206
Median Row Crop Tractor6

8270R is in the 50th percentile; 8420 is in the 50th · 1,417 models

Forward Gears

= Effectively tied
8270R16
842016
Median Row Crop Tractor16

8270R is in the 50th percentile; 8420 is in the 50th · 1,200 models

8270R (A)8420 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecJohn Deere 8270RJohn Deere 8420Difference
ManufacturerJohn DeereJohn DeereSame
Model8270R8420—
CategoryRow CropRow CropSame

Engine

SpecJohn Deere 8270RJohn Deere 8420Difference
ManufacturerJohn DeereJohn DeereSame
ModelPowerTech PSSNot recorded—
Power Output257hp270hp▲ 8420+13 hp · +5%
Rated RPM1,749RPM2,200RPM▲ 8420+451 RPM · +26%
Cylinders66Same
Displacement548ci496ci▲ 8270R+52 ci · +10%
Bore4.7in4.6in▲ 8270R+0.1 in · +2%
Stroke5.4in5.1in▲ 8270R+0.3 in · +6%

Transmission

SpecJohn Deere 8270RJohn Deere 8420Difference
TypeSelective gear fixed ratio, full power shiftFull power shift—

Dimensions & Weight

SpecJohn Deere 8270RJohn Deere 8420Difference
Length245in212in▲ 8270R+33 in · +16%
Width137inNot recorded—
Height129in122in▲ 8270R+7 in · +6%
Wheelbase119inNot recorded—
Operating Weight23,670lb23,955lb▲ 8420+285 lb · +1%

Hydraulics

SpecJohn Deere 8270RJohn Deere 8420Difference
System TypeClosed center, pressure-flow compensatedClosed center pressure-flow compensated (PFC)—
Pump Flow Capacity62.9gpmNot recorded—
Pressure2,521psiNot recorded—
Steering TypeHydrostatic powerHydrostatic powerSame

Power Take-off (PTO)

SpecJohn Deere 8270RJohn Deere 8420Difference
Type1000 (1-3/4)Independent with hydraulic wet discs clutch—
Speed 11,000rpm1,000rpmSame
Speed 22,004rpm540rpm▲ 8270R+1,464 rpm · +271%
Speed 3Not recorded1,000rpm—

Tires

SpecJohn Deere 8270RJohn Deere 8420Difference
Front Tire Size420/90R30Not recorded—
Rear Tire Size480/80R46480/80R46Same

Hitch & Towing

SpecJohn Deere 8270RJohn Deere 8420Difference
Hitch TypeThree-Point HitchIII/IIIN—
Hitch CategoryCategory 3Category 3Same
Hitch PositionRearRearSame
Hitch CapacityNot recorded17,897lb—

Chassis & Drive

SpecJohn Deere 8270RJohn Deere 8420Difference
Chassis Type4x4 MFWD 4WD4x4 MFWD 4WDSame
Drive TypeMFWD 4WD4WD—
Steering TypeHydrostatic powerHydrostatic powerSame
Brake TypeWet multiple disc, hydraulically operatedHydraulic wet disc—

Electrical

SpecJohn Deere 8270RJohn Deere 8420Difference
Starter TypeElectric StarterElectric—

Emissions

SpecJohn Deere 8270RJohn Deere 8420Difference
Control SystemDOC, SCR, Regenerative DPFNot recorded—

Capacities

SpecJohn Deere 8270RJohn Deere 8420Difference
Coolant10.6gal9gal▲ 8270R+1.6 gal · +18%

Operator Station

SpecJohn Deere 8270RJohn Deere 8420Difference
TypeNot recordedCab (standard)—

Category context

Both models against the field

Engine Power

median 138 hp
A · 88th percentile (257 hp)B · 90th percentile (270 hp)

Engine Displacement

median 391 ci
A · 96th percentile (548 ci)B · 85th percentile (496 ci)

Cylinders

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

Forward Gears

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

Operating Weight

median 12,307 lb
A · 92nd percentile (23,670 lb)B · 93rd percentile (23,955 lb)
A · 8270RB · 8420Median Row Crop Tractor
Full spec pageJohn Deere 8270RFull spec pageJohn Deere 8420