Head to head · Row Crop

Allis Chalmers D17 vs International Harvester 634

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 634

Utility

power
66 hp
displacement
281 ci
Cylinders
4
Forward gears
8
Full 634 specs
Allis ChalmersAllis Chalmers D17
vs
International HarvesterInternational Harvester 634

How they compare

Headline specs vs. the whole Row Crop

n = 806–1,417

Engine Power

▲ 634 higher · +3 hp (+5%)
D1763 hp
63466 hp
Median Row Crop Tractor138 hp

D17 is in the 9th percentile; 634 is in the 10th · 1,206 models

Engine Displacement

▲ 634 higher · +55 ci (+24%)
D17226 ci
634281 ci
Median Row Crop Tractor391 ci

D17 is in the 11th percentile; 634 is in the 28th · 1,409 models

Cylinders

= Effectively tied
D174
6344
Median Row Crop Tractor6

D17 is in the 17th percentile; 634 is in the 17th · 1,417 models

Forward Gears

= Effectively tied
D178
6348
Median Row Crop Tractor16

D17 is in the 16th percentile; 634 is in the 16th · 1,200 models

D17 (A)634 (B)Median Row Crop Tractor

Full comparison

Every spec, side by side

General Information

SpecAllis Chalmers D17International Harvester 634Difference
ManufacturerAllis ChalmersInternational Harvester—
ModelD17634—
CategoryRow CropUtility—

Engine

SpecAllis Chalmers D17International Harvester 634Difference
ManufacturerAllis ChalmersInternational Harvester—
ModelAllis-Chalmers 3.7L 4-cyl gasolineBD-281—
Power Output63hp66hp▲ 634+3 hp · +5%
Rated RPM1,650RPM1,600RPM▲ D17+50 RPM · +3%
Cylinders44Same
Displacement226ci281ci▲ 634+55 ci · +24%
Bore4in4.1in▲ 634+0.1 in · +2%
Stroke4.5in5.3in▲ 634+0.8 in · +18%

Transmission

SpecAllis Chalmers D17International Harvester 634Difference
TypePartial Power ShiftManual—

Dimensions & Weight

SpecAllis Chalmers D17International Harvester 634Difference
Length140in139in▲ D17+1 in · <1%
Width76.4in65.5in▲ D17+10.9 in · +17%
Height80.7in96in▲ 634+15.3 in · +19%
Operating Weight4,675lb7,694lb▲ 634+3,019 lb · +65%

Hydraulics

SpecAllis Chalmers D17International Harvester 634Difference
System TypeOpen CenterNot recorded—
Steering TypeManualPower—

Power Take-off (PTO)

SpecAllis Chalmers D17International Harvester 634Difference
TypeLiveNot recorded—
Speed 1540rpmNot recorded—

Hitch & Towing

SpecAllis Chalmers D17International Harvester 634Difference
Hitch TypeSnap-CouplerThree-Point Hitch—
Hitch CategoryIICategory 3—
Hitch PositionRearRearSame

Chassis & Drive

SpecAllis Chalmers D17International Harvester 634Difference
Chassis Type4x2 2WDNot recorded—
Drive Type2WD4WD—
Steering TypeManualPower—

Electrical

SpecAllis Chalmers D17International Harvester 634Difference
Battery VoltageNot recorded12V—
Starter TypeElectricElectric Starter—

Capacities

SpecAllis Chalmers D17International Harvester 634Difference
Coolant3.6galNot recorded—

Operator Station

SpecAllis Chalmers D17International Harvester 634Difference
TypeOpen operator stationNot recorded—

Category context

Both models against the field

Engine Power

median 138 hp
A · 9th percentile (63 hp)B · 10th percentile (66 hp)

Engine Displacement

median 391 ci
A · 11th percentile (226 ci)B · 28th percentile (281 ci)

Cylinders

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

Forward Gears

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

Operating Weight

median 12,307 lb
A · 7th percentile (4,675 lb)B · 18th percentile (7,694 lb)
A · D17B · 634Median Row Crop Tractor
Full spec pageAllis Chalmers D17Full spec pageInternational Harvester 634