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Tractor · 1918Unverified

Gray Tractor 18-36

Name: Gray Tractor 18-36
Brand: Gray Tractor

Gray Tractor 18-36 — Standard-tread tractor · 18 hp. Reference specifications; pending source verification.

The Gray Tractor 18-36 is a tractor rated at 18 hp — making it one of the more compact options in its class. The 18-36 was manufactured from 1918 to 1921. Power comes from a 4-cylinder petrol liquid-cooled engine, driving through two-wheel drive with a 2-speed gearbox. Listed weight is 2812 kg, and it is aimed at jobs of around up to 200 ac. The available specification table below shows both UK and US units.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

18 hp

Max power

14.6 kW

Weight

2812 kg

Catalogue coverage

Variants represented

Richest spec table

41 rows

Recorded power

18 hp

Recorded weight

2812 kg

Transmissions

2-speed gear

Production years

1918-1921

Verified variants

No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.

Hover a source tag to verify

Overview

ManufacturerGray TractorReference

Standard-tread tractorReference

Built in Minneapolis, Minnesota, USAReference

Drive3x1 drum driveReference

Manual steeringReference

Open operator station.Reference

Engine

Waukesha 7.8L 4-cyl gasolineReference

Drawbar (claimed)13.4 kWReference

Belt (claimed)26.8 kWReference

Plows4Reference

Drawbar (tested)14.6 kWReference

Belt (tested)24.0 kWReference

Waukesha PReference

gasolineReference

4-cylinderReference

liquid-cooled inlineReference

Displacement7.8 LReference

Bore/Stroke121 x 171 mmReference

Fuel systemcarburetorReference

Rated RPM900Reference

Starter typehand-crankReference

Belt power (max)24.0 kWReference

Max power14.6 kWReference

Transmission

2-speed gearReference

TypegearReference

Gears2 forward and 1 reverseReference

Dimensions

Wheelbase265 cmReference

Weight2812 kgReference

Front tire40x8Reference

Rear tire54x54Reference

Ag front40x8 steelReference

Ag rear54x54 steelReference

Length441 cmReference

Width183 cmReference

Height182 cmReference

18-36 Serial Number Location

Serial number plate on the left side of the tractor, on top of the transmission case.Reference

Capacities

Diameter27 cmReference

Width20 cmReference

Test results

Gasoline 2-speed 2WDJune 11 - July 3, 1920Link: Nebraska Tractor Test 22 fileReference

Drawbar performanceReference

Max pull1537 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.

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