Head to head · Row Crop

Allis Chalmers D17 vs International Harvester 656

Allis Chalmers D17 Tractor
Allis ChalmersModel A

Allis Chalmers D17

Row Crop

power
63 hp
displacement
226 ci
Cylinders
4
Forward gears
8
Full D17 specs
Image not recorded
International HarvesterModel B

International Harvester 656

Utility

power
63 hp
displacement
263 ci
Cylinders
6
Forward gears
10
Full 656 specs
Allis ChalmersAllis Chalmers D17
vs
International HarvesterInternational Harvester 656

How they compare

Headline specs vs. the whole Row Crop

n = 806–1,417

Engine Power

= Effectively tied
D1763 hp
65663 hp
Median Row Crop Tractor138 hp

D17 is in the 9th percentile; 656 is in the 9th · 1,206 models

Engine Displacement

▲ 656 higher · +37 ci (+16%)
D17226 ci
656263 ci
Median Row Crop Tractor391 ci

D17 is in the 11th percentile; 656 is in the 19th · 1,409 models

Cylinders

▲ 656 higher · +2 (+50%)
D174
6566
Median Row Crop Tractor6

D17 is in the 17th percentile; 656 is in the 50th · 1,417 models

Forward Gears

▲ 656 higher · +2 (+25%)
D178
65610
Median Row Crop Tractor16

D17 is in the 16th percentile; 656 is in the 22nd · 1,200 models

D17 (A)656 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers D17International Harvester 656Difference
ManufacturerAllis ChalmersInternational Harvester—
ModelD17656—
CategoryRow CropUtility—

Engine

SpecAllis Chalmers D17International Harvester 656Difference
ManufacturerAllis ChalmersInternational Harvester—
ModelAllis-Chalmers 3.7L 4-cyl gasolineC-263—
Power Output63hp63hpSame
Rated RPM1,650RPM1,800RPM▲ 656+150 RPM · +9%
Cylinders46▲ 656+2 · +50%
Displacement226ci263ci▲ 656+37 ci · +16%
Bore4in3.5in▲ D17+0.5 in · +14%
Stroke4.5in4.4in▲ D17+0.1 in · +2%

Transmission

SpecAllis Chalmers D17International Harvester 656Difference
TypePartial Power ShiftSliding gear—

Dimensions & Weight

SpecAllis Chalmers D17International Harvester 656Difference
Length140in152in▲ 656+12 in · +9%
Width76.4in74in▲ D17+2.4 in · +3%
Height80.7in62in▲ D17+18.7 in · +30%
Operating Weight4,675lb6,100lb▲ 656+1,425 lb · +30%

Hydraulics

SpecAllis Chalmers D17International Harvester 656Difference
System TypeOpen CenterOpen centerSame
Steering TypeManualNot recorded—

Power Take-off (PTO)

SpecAllis Chalmers D17International Harvester 656Difference
TypeLiveIndependent—
Speed 1540rpm540rpmSame
Speed 2Not recorded1,000rpm—

Hitch & Towing

SpecAllis Chalmers D17International Harvester 656Difference
Hitch TypeSnap-CouplerThree-Point Hitch—
Hitch CategoryIIIISame
Hitch PositionRearRearSame

Chassis & Drive

SpecAllis Chalmers D17International Harvester 656Difference
Chassis Type4x2 2WD4x2 2WDSame
Drive Type2WD2WDSame
Steering TypeManualNot recorded—

Electrical

SpecAllis Chalmers D17International Harvester 656Difference
Starter TypeElectricElectricSame

Capacities

SpecAllis Chalmers D17International Harvester 656Difference
Coolant3.6gal5.1gal▲ 656+1.5 gal · +42%

Operator Station

SpecAllis Chalmers D17International Harvester 656Difference
TypeOpen operator stationOpen—

Category context

Both models against the field

Engine Power

median 138 hp
A · 9th percentile (63 hp)B · 9th percentile (63 hp)

Engine Displacement

median 391 ci
A · 11th percentile (226 ci)B · 19th percentile (263 ci)

Cylinders

median 6
A · 17th percentile (4)B · 50th percentile (6)

Forward Gears

median 16
A · 16th percentile (8)B · 22nd percentile (10)

Operating Weight

median 12,307 lb
A · 7th percentile (4,675 lb)B · 12th percentile (6,100 lb)
A · D17B · 656Median Row Crop Tractor
Full spec pageAllis Chalmers D17Full spec pageInternational Harvester 656