Tractor · 1922Unverified
Allis Chalmers 20-35
Allis Chalmers 20-35 — Standard-tread tractor · 20 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
20 hp
Max power
19.0 kW
Weight
3011 kg
Hover a source tag to verify
Overview
ManufacturerAllis ChalmersReference
Standard-tread tractorReference
Built in West Allis, Wisconsin, USAReference
When the Allis-Chalmers E 18-30 was re-tested in 1921 at 930 RPM, it produced a rated 38 belt horsepower. The tractor was re-named the 20-35.Reference
Two-wheel driveReference
Manual steeringReference
Open operator station.Reference
Engine
Allis Chalmers 7.6L 4-cyl gasolineReference
Fuel tank94.6 LReference
Aux. fuel29.3 LReference
Drawbar (claimed)14.9 kWReference
Belt (claimed)26.1 kWReference
Plows4Reference
Drawbar (tested)24.8 kWReference
Belt (tested)33.0 kWReference
Allis ChalmersReference
gasolineReference
4-cylinderReference
liquid-cooled vertical valve-in-headReference
Displacement7.6 LReference
Bore/Stroke121 x 165 mmReference
Fuel systemKingston L 1.5" carburetorReference
Air cleaneroil bathReference
Rated RPM930Reference
Coolant capacity37.9 LReference
Belt power (max)32.6 kWReference
Max power19.0 kWReference
Belt power (max)33.0 kWReference
Max power24.8 kWReference
Transmission
2-speed unsynchronized gearReference
Typeunsynchronized gearReference
Gears2 forward and 1 reverseReference
Clutchhand-operated expanding shoeReference
Dimensions
Weight3011 kgReference
Front tire36x6Reference
Rear tire50x12Reference
Ag front36x6 steelReference
Ag rear50x12 steelReference
Length342 cmReference
Width167 cmReference
Height172 cmReference
20-35 Serial Numbers
Location:Serial number on a plate in front of the steering wheel until 1927. After, the serial number is front of shifter on transmission case.Reference
19236161Reference
19246397Reference
19256755Reference
19267369Reference
19278070Reference
19289870Reference
192916762Reference
193023252Reference
Final24185Reference
FAQ: How to read a serial number table.Reference
Capacities
Diameter33 cmReference
Width21 cmReference
RPM930Reference
Test results
NTTL 83: gasoline 2-speed 2WDReference
NTTL 151: gasoline 2-speed 2WDReference
Gasoline 2-speed 2WDSeptember 15 - 24, 1921Link: Nebraska Tractor Test 83 fileReference
Belt fuel use (max)17.8 l/hourReference
Drawbar performanceReference
Max pull1394 kgReference
Gasoline 2-speed 2WDJune 19 - 26, 1928Link: Nebraska Tractor Test 151 fileReference
Belt fuel use (max)18.9 l/hourReference
Max pull1995 kgReference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.