Embed

Paste on your site — shows live UK/US specs and links back here. Free to use.

<iframe src="https://farmfleetspecs.com/embed/gibson-i" width="100%" height="430" loading="lazy" style="border:1px solid #e6e8e4;border-radius:14px;max-width:560px" title="Gibson I specs — FarmFleetSpecs"></iframe>

Tractor · 1948Unverified

Gibson I

Name: Gibson I
Brand: Gibson

Gibson I — Row-Crop tractor · 37 hp. Reference specifications; pending source verification.

The Gibson I tractor model is a relatively lightweight model, rated at approximately 37 hp. It was produced between 1948 and 1952, and features a 6-cylinder petrol liquid-cooled engine paired with two-wheel drive and a 4-speed gearbox. The model has an operating weight of 4000 to 4512 pounds, and is suitable for operations covering up to 200 acres.

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

Rated power

37 hp

Max power

21.7 kW

Weight

4000 to 4512 pounds

Catalogue coverage

Variants represented

Richest spec table

65 rows

Recorded power

37 hp

Transmissions

4-speed gear

Production years

1948-1952

Verified variants

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

Hover a source tag to verify

Overview

ManufacturerGibsonReference

Row-Crop tractorReference

Built in Longmont, Colorado, USAReference

Two-wheel driveReference

Final drivesbull gearReference

Manual steeringReference

Mechanical band brakesReference

Open operator station.Reference

Variants

Itricycle-frontReference

IFAadjustable wide-frontReference

IFSstandard frontReference

Engine

Hercules 3.9L 6-cyl gasolineReference

Fuel tank75.7 LReference

Plows2-3Reference

Drawbar (tested)21.7 kWReference

Belt (tested)30.6 kWReference

Hercules ZXDReference

gasolineReference

6-cylinderReference

liquid-cooledReference

Displacement3.9 LReference

Bore/Stroke87 x 105 mmReference

Air cleaneroil bathReference

Compression6.71:1Reference

Rated RPM1800Reference

Starter volts6Reference

Coolant capacity16.1 LReference

Belt power (max)30.6 kWReference

Power at rated engine speed27.5 kWReference

Max power21.7 kWReference

Transmission

4-speed gearReference

TypegearReference

Gears4 forward and 1 reverseReference

Clutch254mm dry discReference

PTO & Hydraulics

PTO (tested)27.5 kWReference

Rear PTOliveReference

Rear PTO Type540 (1.375)Reference

Dimensions

Wheelbase238 cmReference

Weight4000 to 4512 poundsReference

Front tire5.50-16Reference

Rear tire10-38Reference

Ag front5.50-16Reference

Ag rear10-38Reference

Ag rear11-38Reference

Ag rear12-38Reference

Length323 cmReference

Height170 cmReference

Ground clearance63 cmReference

Rear tread124 to 228 cmReference

Shipping1814 kgReference

Operating2046 kgReference

Ballasted3399 kgReference

Capacities

Diameter23 cmReference

Width19 cmReference

RPM1487Reference

Speed1078.69 meters/minReference

Test results

Gasoline 4-speed 2WDMay 8 - 12, 1949Link: Nebraska Tractor Test 408 fileReference

Belt fuel use (max)15.9 l/hourReference

PTO performanceReference

Fuel use13.6 l/hourReference

Drawbar performanceReference

Fuel use12.1 l/hourReference

Gear 3 used for power test.Reference

Max pull2121 kgReference

Gear 2 used for pull test.Reference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

Partner tool · Free

Working out if you can afford this tractor?

YourIncomeCalculator.com — free, HMRC-aligned take-home pay, self-employment & VAT calculators. No sign-up.

Calculate your take-home pay

Recommended kit

Handy kit for owners

Popular tractor and farm accessories owners pick up for machines like this.

Disclosure: some links on this page are affiliate links. If you buy through them we may earn a small commission — at no extra cost to you. Learn more.