Head to head · Row Crop

Allis Chalmers D21 Series II vs John Deere 4250

John Deere 4250 Tractor
John DeereModel B

John Deere 4250

Row Crop

power
123 hp
displacement
466 ci
Cylinders
6
Forward gears
16
Full 4250 specs
Allis ChalmersAllis Chalmers D21 Series II
vs
John DeereJohn Deere 4250

How they compare

Headline specs vs. the whole Row Crop

n = 806–1,417

Engine Power

▲ 4250 higher · +2 hp (+2%)
D21 Series II121 hp
4250123 hp
Median Row Crop Tractor138 hp

D21 Series II is in the 40th percentile; 4250 is in the 41st · 1,206 models

Engine Displacement

▲ 4250 higher · +40 ci (+9%)
D21 Series II426 ci
4250466 ci
Median Row Crop Tractor391 ci

D21 Series II is in the 72nd percentile; 4250 is in the 82nd · 1,409 models

Cylinders

= Effectively tied
D21 Series II6
42506
Median Row Crop Tractor6

D21 Series II is in the 50th percentile; 4250 is in the 50th · 1,417 models

Forward Gears

▲ 4250 higher · +8 (+100%)
D21 Series II8
425016
Median Row Crop Tractor16

D21 Series II is in the 16th percentile; 4250 is in the 50th · 1,200 models

D21 Series II (A)4250 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers D21 Series IIJohn Deere 4250Difference
ManufacturerAllis ChalmersJohn Deere—
ModelD21 Series II4250—
CategoryRow CropRow CropSame

Engine

SpecAllis Chalmers D21 Series IIJohn Deere 4250Difference
ManufacturerAllis ChalmersJohn Deere—
Model3500Not recorded—
Power Output121hp123hp▲ 4250+2 hp · +2%
Rated RPM2,200RPM2,200RPMSame
Cylinders66Same
Displacement426ci466ci▲ 4250+40 ci · +9%
Bore4.3in4.6in▲ 4250+0.3 in · +7%
Stroke5in4.8in▲ D21 Series II+0.2 in · +4%

Transmission

SpecAllis Chalmers D21 Series IIJohn Deere 4250Difference
TypeSliding gear with dry disc clutchPartial power shift (Quad-Range)—

Dimensions & Weight

SpecAllis Chalmers D21 Series IIJohn Deere 4250Difference
Length160inNot recorded—
Width91.3in95.7in▲ 4250+4.4 in · +5%
Height106in116in▲ 4250+10 in · +9%
Operating Weight9,502lb13,855lb▲ 4250+4,353 lb · +46%

Hydraulics

SpecAllis Chalmers D21 Series IIJohn Deere 4250Difference
System TypeNot recordedClosed center—
Pump Flow CapacityNot recorded22gpm—
PressureNot recorded2,350psi—
Steering TypePowerPowerSame

Power Take-off (PTO)

SpecAllis Chalmers D21 Series IIJohn Deere 4250Difference
TypeIndependentIndependentSame
Speed 11,000rpm540rpm▲ D21 Series II+460 rpm · +85%
Speed 2Not recorded1,000rpm—
Power RatingNot recorded123hp—

Hitch & Towing

SpecAllis Chalmers D21 Series IIJohn Deere 4250Difference
Hitch TypeThree-Point HitchNot recorded—
Hitch CategoryIII/IIIIIN/II—
Hitch PositionRearRearSame

Chassis & Drive

SpecAllis Chalmers D21 Series IIJohn Deere 4250Difference
Chassis Type4x2 2WDNot recorded—
Drive Type2WDNot recorded—
Steering TypePowerPowerSame
Brake TypeBand actuated discDifferential hydraulic wet disc—

Electrical

SpecAllis Chalmers D21 Series IIJohn Deere 4250Difference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers D21 Series IIJohn Deere 4250Difference
Coolant7.8galNot recorded—

Operator Station

SpecAllis Chalmers D21 Series IIJohn Deere 4250Difference
TypeOpenSound-Gard cab or four-post Roll-Gard ROPS (optional)—

Category context

Both models against the field

Engine Power

median 138 hp
A · 40th percentile (121 hp)B · 41st percentile (123 hp)

Engine Displacement

median 391 ci
A · 72nd percentile (426 ci)B · 82nd percentile (466 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 · 28th percentile (9,502 lb)B · 61st percentile (13,855 lb)
A · D21 Series IIB · 4250Median Row Crop Tractor
Full spec pageAllis Chalmers D21 Series IIFull spec pageJohn Deere 4250