Head to head · Row Crop

John Deere 8235R vs John Deere 8420

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John DeereModel A

John Deere 8235R

Row Crop

power
235 hp
displacement
548 ci
Cylinders
6
Forward gears
16
Full 8235R 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 8235R
vs
John DeereJohn Deere 8420

How they compare

Headline specs vs. the whole Row Crop

n = 279–1,417

Engine Power

▲ 8420 higher · +35 hp (+15%)
8235R235 hp
8420270 hp
Median Row Crop Tractor138 hp

8235R is in the 85th percentile; 8420 is in the 90th · 1,206 models

Engine Displacement

▲ 8235R higher · +52 ci (+10%)
8235R548 ci
8420496 ci
Median Row Crop Tractor391 ci

8235R is in the 96th percentile; 8420 is in the 85th · 1,409 models

Cylinders

= Effectively tied
8235R6
84206
Median Row Crop Tractor6

8235R is in the 50th percentile; 8420 is in the 50th · 1,417 models

Forward Gears

= Effectively tied
8235R16
842016
Median Row Crop Tractor16

8235R is in the 50th percentile; 8420 is in the 50th · 1,200 models

8235R (A)8420 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecJohn Deere 8235RJohn Deere 8420Difference
ManufacturerJohn DeereJohn DeereSame
Model8235R8420—
CategoryRow CropRow CropSame

Engine

SpecJohn Deere 8235RJohn Deere 8420Difference
ManufacturerJohn DeereJohn DeereSame
ModelPowerTech PSXNot recorded—
Power Output235hp270hp▲ 8420+35 hp · +15%
Rated RPM2,100RPM2,200RPM▲ 8420+100 RPM · +5%
Cylinders66Same
Displacement548ci496ci▲ 8235R+52 ci · +10%
Bore4.7in4.6in▲ 8235R+0.1 in · +2%
Stroke5.4in5.1in▲ 8235R+0.3 in · +6%

Transmission

SpecJohn Deere 8235RJohn Deere 8420Difference
TypeSelective gear fixed ratio with full range operator controlled power shiftFull power shift—

Dimensions & Weight

SpecJohn Deere 8235RJohn Deere 8420Difference
Length244in212in▲ 8235R+32 in · +15%
Width95.7inNot recorded—
Height139in122in▲ 8235R+17 in · +14%
Operating Weight25,570lb23,955lb▲ 8235R+1,615 lb · +7%

Hydraulics

SpecJohn Deere 8235RJohn Deere 8420Difference
System TypeHydraulic control system direct engine driveClosed center pressure-flow compensated (PFC)—
Steering Typehydrostatic powerHydrostatic powerSame

Power Take-off (PTO)

SpecJohn Deere 8235RJohn Deere 8420Difference
TypeIndependentIndependent with hydraulic wet discs clutch—
Speed 11,000rpm1,000rpmSame
Speed 2Not recorded540rpm—
Speed 3Not recorded1,000rpm—

Tires

SpecJohn Deere 8235RJohn Deere 8420Difference
Front Tire Size420/85R34Not recorded—
Rear Tire Size480/80R50480/80R46—

Hitch & Towing

SpecJohn Deere 8235RJohn Deere 8420Difference
Hitch TypeCategory III and IVIII/IIIN—
Hitch CategoryCategory 3/3NCategory 3—
Hitch PositionRearRearSame
Hitch Capacity18,326lb17,897lb▲ 8235R+429 lb · +2%

Chassis & Drive

SpecJohn Deere 8235RJohn Deere 8420Difference
Chassis Type4x4 FWA with duals4x4 MFWD 4WD—
Drive TypeNot recorded4WD—
Steering Typehydrostatic powerHydrostatic powerSame
Brake TypeWet multiple disc hydraulically operated by two foot pedals that can be locked togetherHydraulic wet disc—

Electrical

SpecJohn Deere 8235RJohn Deere 8420Difference
Starter TypeElectricElectricSame

Capacities

SpecJohn Deere 8235RJohn Deere 8420Difference
Coolant10.8gal9gal▲ 8235R+1.8 gal · +20%

Operator Station

SpecJohn Deere 8235RJohn Deere 8420Difference
TypeCommandView II cab standardCab (standard)—

Category context

Both models against the field

Engine Power

median 138 hp
A · 85th percentile (235 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 · 95th percentile (25,570 lb)B · 93rd percentile (23,955 lb)
A · 8235RB · 8420Median Row Crop Tractor
Full spec pageJohn Deere 8235RFull spec pageJohn Deere 8420