Tractor · 1918Unverified
Allis Chalmers 18-30
Allis Chalmers 18-30 — Standard-tread tractor · 18 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
18 hp
Max power
15.3 kW
Weight
2789 kg
Hover a source tag to verify
Overview
ManufacturerAllis ChalmersReference
Standard-tread tractorReference
Built in West Allis, Wisconsin, USAReference
Total built1160Reference
Original price was $1,785 in 1919Reference
Originally named the Allis-Chalmers 15-30, the tractor was renamed 18-30 after the first Nebraska test.Reference
Two-wheel driveReference
Open operator station.Reference
Engine
Allis Chalmers 7.6L 4-cyl gasolineReference
Fuel tank94.6 LReference
Aux. fuel29.3 LReference
Drawbar (claimed)13.4 kWReference
Belt (claimed)22.4 kWReference
Plows3Reference
Drawbar (tested)15.3 kWReference
Belt (tested)24.9 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 RPM830Reference
Coolant capacity37.9 LReference
Belt power (max)24.9 kWReference
Max power15.3 kWReference
Transmission
2-speed unsynchronized gearReference
Typeunsynchronized gearReference
Gears2 forward and 1 reverseReference
Clutchhand-operated expanding shoeReference
Dimensions
Weight2789 kgReference
Front tire36x6Reference
Rear tire50x12Reference
Ag front36x6 steelReference
Ag rear50x12 steelReference
Length342 cmReference
Width167 cmReference
Height172 cmReference
18-30 Serial Numbers
Location:front of shifter on transmission caseReference
19195000Reference
19195006Reference
19205161Reference
19216015Reference
1922????Reference
FAQ: How to read a serial number table.Reference
Capacities
Diameter33 cmReference
Width21 cmReference
RPM930Reference
Test results
Gasoline 2-speed 2WDAugust 23 - September 6, 1920Link: Nebraska Tractor Test 55 fileReference
Belt fuel use (max)17.4 l/hourReference
Drawbar performanceReference
Fuel use13.2 l/hourReference
Max pull1587 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.