Head to head · Row Crop

Allis Chalmers D21 Series II vs International Harvester 1255

International Harvester 1255 Tractor
International HarvesterModel B

International Harvester 1255

Utility

power
125 hp
displacement
358 ci
Cylinders
6
Forward gears
20
Full 1255 specs
Allis ChalmersAllis Chalmers D21 Series II
vs
International HarvesterInternational Harvester 1255

How they compare

Headline specs vs. the whole Row Crop

n = 1,140–1,417

Engine Power

▲ 1255 higher · +4 hp (+3%)
D21 Series II121 hp
1255125 hp
Median Row Crop Tractor138 hp

D21 Series II is in the 40th percentile; 1255 is in the 42nd · 1,206 models

Engine Displacement

▲ D21 Series II higher · +68 ci (+19%)
D21 Series II426 ci
1255358 ci
Median Row Crop Tractor391 ci

D21 Series II is in the 72nd percentile; 1255 is in the 40th · 1,409 models

Cylinders

= Effectively tied
D21 Series II6
12556
Median Row Crop Tractor6

D21 Series II is in the 50th percentile; 1255 is in the 50th · 1,417 models

Forward Gears

▲ 1255 higher · +12 (+150%)
D21 Series II8
125520
Median Row Crop Tractor16

D21 Series II is in the 16th percentile; 1255 is in the 70th · 1,200 models

D21 Series II (A)1255 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers D21 Series IIInternational Harvester 1255Difference
ManufacturerAllis ChalmersInternational Harvester—
ModelD21 Series II1255—
CategoryRow CropUtility—

Engine

SpecAllis Chalmers D21 Series IIInternational Harvester 1255Difference
ManufacturerAllis ChalmersInternational Harvester—
Model3500Not recorded—
Power Output121hp125hp▲ 1255+4 hp · +3%
Rated RPM2,200RPM2,200RPMSame
Cylinders66Same
Displacement426ci358ci▲ D21 Series II+68 ci · +19%
Bore4.3in3.9in▲ D21 Series II+0.4 in · +10%
Stroke5in5.1in▲ 1255+0.1 in · +2%

Transmission

SpecAllis Chalmers D21 Series IIInternational Harvester 1255Difference
TypeSliding gear with dry disc clutchNot recorded—

Dimensions & Weight

SpecAllis Chalmers D21 Series IIInternational Harvester 1255Difference
Length160in187in▲ 1255+27 in · +17%
Width91.3inNot recorded—
Height106in116in▲ 1255+10 in · +9%
Operating Weight9,502lb12,215lb▲ 1255+2,713 lb · +29%

Hydraulics

SpecAllis Chalmers D21 Series IIInternational Harvester 1255Difference
Steering TypePowerNot recorded—

Power Take-off (PTO)

SpecAllis Chalmers D21 Series IIInternational Harvester 1255Difference
TypeIndependentNot recorded—
Speed 11,000rpmNot recorded—

Hitch & Towing

SpecAllis Chalmers D21 Series IIInternational Harvester 1255Difference
Hitch TypeThree-Point HitchNot recorded—
Hitch CategoryIII/IINot recorded—
Hitch PositionRearNot recorded—

Chassis & Drive

SpecAllis Chalmers D21 Series IIInternational Harvester 1255Difference
Chassis Type4x2 2WD4x4 MFWD 4WD—
Drive Type2WD4WD—
Steering TypePowerNot recorded—
Brake TypeBand actuated discNot recorded—

Electrical

SpecAllis Chalmers D21 Series IIInternational Harvester 1255Difference
Starter TypeElectricNot recorded—

Capacities

SpecAllis Chalmers D21 Series IIInternational Harvester 1255Difference
Coolant7.8galNot recorded—

Operator Station

SpecAllis Chalmers D21 Series IIInternational Harvester 1255Difference
TypeOpenNot recorded—

Category context

Both models against the field

Engine Power

median 138 hp
A · 40th percentile (121 hp)B · 42nd percentile (125 hp)

Engine Displacement

median 391 ci
A · 72nd percentile (426 ci)B · 40th percentile (358 ci)

Cylinders

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

Forward Gears

median 16
A · 16th percentile (8)B · 70th percentile (20)

Operating Weight

median 12,307 lb
A · 28th percentile (9,502 lb)B · 50th percentile (12,215 lb)
A · D21 Series IIB · 1255Median Row Crop Tractor
Full spec pageAllis Chalmers D21 Series IIFull spec pageInternational Harvester 1255