Search/Tractor/David Brown/4600 Selectamatic

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Tractor · 1968Unverified

David Brown 4600 Selectamatic

Name: David Brown 4600 Selectamatic
Brand: David Brown

David Brown 4600 Selectamatic — Utility tractor · 46 hp. Reference specifications; pending source verification.

The David Brown 4600 Selectamatic is a tractor with a rated power of 46 hp, positioning it at the lighter end of its class. It was manufactured from 1968 to 1971. The tractor features a 3-cylinder petrol liquid-cooled engine, coupled with two-wheel drive and a 6-speed gearbox. Its listed operating weight is 1950 kg, 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

46 hp

Max power

28.6 kW

Weight

1950 kg

Catalogue coverage

Variants represented

Richest spec table

84 rows

Recorded power

46 hp

Recorded weight

1950 kg

Transmissions

6-speed gear

Production years

1968-1971

Verified variants

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

Hover a source tag to verify

Overview

ManufacturerDavid BrownReference

Utility tractorReference

Built in Meltham Mills, Huddersfield, EnglandReference

Original price$4,600 (1971)Reference

Two-wheel driveReference

Final drivesspur gearReference

Differential lockrear diff lock standardReference

SteeringmanualReference

Steeringpower-assist optionalReference

Expanding shoe brakesReference

Open operator station.Reference

Engine

David Brown 2.7L 3-cyl gasolineReference

Drawbar (tested)28.6 kWReference

David BrownReference

gasolineReference

3-cylinderReference

liquid-cooledReference

Displacement2.7 LReference

Bore/Stroke100 x 114 mmReference

Air cleaneroil bathReference

Compression7.5:1Reference

Rated RPM2200Reference

Operating RPM700-2200Reference

Torque189.8 NmReference

Torque RPM1400Reference

Starter volts12Reference

Oil capacity6.4 LReference

Coolant capacity10.4 LReference

Power at rated engine speed34.3 kWReference

Max power28.6 kWReference

Transmission

6-speed gearReference

12-speed gearReference

TypegearReference

Gears6 forward and 2 reverseReference

Clutchdry discReference

Oil capacity22.7 LReference

Gears12 forward and 4 reverseReference

PTO & Hydraulics

PTO (claimed)34.3 kWReference

PTO (tested)34.3 kWReference

Hydraulic system22.7 LReference

TypeSelectamaticReference

Capacity22.7 LReference

Pressure137.9 barReference

Valves0 to 2Reference

Pump flow27.6 lpmReference

Rear TypeII/IReference

Controlposition and draft controlReference

Rear lift (at ends)816 kgReference

Rear lift (at ends)1134 kgReference

Rear PTOliveReference

Rear PTO Type540/1000Reference

Engine RPM540@1823Reference

Engine RPM1000@2000Reference

Power at rated PTO speed32.2 kWReference

Capacities

Fuel52.0 LReference

Dimensions

Wheelbase202 cmReference

Weight1950 kgReference

Front tire6.00-16Reference

Rear tire14.9/13-28Reference

Ag front6.00-16Reference

Ag rear14.9/13-28Reference

Ag front7.50-16Reference

Length308 cmReference

Width173 cmReference

Height (hood)137 cmReference

Operating weight1950 kgReference

Ballasted weight3061 kgReference

Clearance (front axle)50 cmReference

Clearance (drawbar)36 cmReference

Front tread132 to 182 cmReference

Rear tread132 to 203 cmReference

Rear tread152 to 203 cmReference

4600 Serial Numbers

1969900001Reference

1970900312Reference

1971900422Reference

FAQ: How to read a serial number table.Reference

Test results

Gasoline 6-speed 2WDSeptember 2 - 11, 1969Link: Nebraska Tractor Test 1019 fileReference

PTO performanceReference

Fuel use15.1 l/hourReference

Fuel use14.0 l/hourReference

Drawbar performanceReference

Gear 3 used for power test.Reference

Max pull2458 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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