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Tractor · 1934Unverified

Caterpillar R5

Name: Caterpillar R5
Brand: Caterpillar

Caterpillar R5 — Agricultural Crawler tractor · 50 hp. Reference specifications; pending source verification.

The Caterpillar R5 is a tractor rated at 50 hp — making it one of the more compact options in its class. The R5 was manufactured from 1934 to 1940. Power comes from a 4-cylinder petrol liquid-cooled engine, driving through a tracked undercarriage with a 4-speed gearbox. Listed weight is 6202 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

50 hp

Max power

36.9 kW

Weight

6202 kg

Catalogue coverage

Variants represented

Richest spec table

55 rows

Recorded power

50 hp

Recorded weight

6202 kg

Transmissions

4-speed gear

Production years

1934-1940

Verified variants

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

Hover a source tag to verify

Overview

ManufacturerCaterpillarReference

Agricultural Crawler tractorReference

Built in Peoria, Illinois, USAReference

The Caterpillar R5 was originally a special-order machine for the US Government. It was first based on the Thirty-Five, then the Forty. Later models were the gas counterpart to the RD6.Reference

DrivecrawlerReference

Open operator station.Reference

Engine

Caterpillar 10.1L 4-cyl gasolineReference

Fuel tank189.2 LReference

Drawbar (claimed)37.3 kWReference

Belt (claimed)43.3 kWReference

Drawbar (tested)36.9 kWReference

Belt (tested)43.9 kWReference

CaterpillarReference

gasolineReference

4-cylinderReference

liquid-cooledReference

Displacement10.1 LReference

Bore/Stroke140 x 165 mmReference

Rated RPM950Reference

Oil capacity13.2 LReference

Coolant capacity35.0 LReference

Belt power (max)43.9 kWReference

Max power36.9 kWReference

Transmission

4-speed gearReference

TypegearReference

Gears4 forward and 1 reverseReference

Clutchdry discReference

Oil capacity18.9 LReference

Dimensions

Weight6202 kgReference

16-inch tracksReference

Length354 cmReference

Width184 cmReference

Height176 cmReference

Ground clearance24 cmReference

Gauge142 cmReference

R5 Serial Numbers

19345E3001Reference

19355E3086Reference

19365E3421Reference

19364H501Reference

19384H936Reference

19364H1132Reference

19404H1320Reference

19403R1Reference

FAQ: How to read a serial number table.Reference

Capacities

Diameter30 cmReference

Width21 cmReference

RPM950Reference

Caterpillar R5 Tracks

Width40 cmReference

Length on ground181 cmReference

Area on ground1.5 m²Reference

Test results

Gasoline 4-speed crawlerJuly 12 - 20, 1934Link: Nebraska Tractor Test 224 fileReference

Drawbar performanceReference

Gear 2 used for power test.Reference

Max pull4914 kgReference

Gear 1 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.

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