David Brown 1200 Selectamatic

The David Brown 1200 Selectamatic is a tractor produced by David Brown. It is equipped with a 219.4 ci 3.6 L engine. The listed engine power is Diesel (gross): 72 hp / 53.7 kW. Transmission: 12 forward and 4 reverse. Drive type: 4x2 2WD. Operating weight: 6230 to 6690 pounds.

Engine Power

Diesel (gross): 72 hp / 53.7 kW

Drive & Traction

4x2 2WD

Fuel & Capacities

21.7 gal 82.1 L

Transmission

12 forward and 4 reverse

Operating Weight

6230 to 6690 pounds

Overview

	1967 - 1971

Production
Manufacturer	David Brown
Built in Meltham Mills, Huddersfield, England
Original price was $6,700 in 1971

David Brown 1200 Engine
David Brown 3.6L 4-cyl diesel
Fuel tank	21.7 gal 82.1 L
Engine details ...

David Brown 1200 Power
Engine (gross)	72 hp 53.7 kW
PTO (claimed)	64.6 hp 48.2 kW
Drawbar (tested)	54.76 hp 40.8 kW
PTO (tested)	65.23 hp 48.6 kW
Performance test details ...

Mechanical
Drive	4x2 2WD
	4x4 MFWD 4WD *Four-wheel drive became an option in 1970.
Open operator station.

Hydraulics
Type	Selectamatic
Pump flow	6.86 gpm 26.0 lpm

Tractor hitch
Rear Type	II
Rear lift	2200 lbs (working) 997 kg
	3450 lbs (rated) 1564 kg

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	540
	540/1000

Dimensions & Tires
2WD Wheelbase	89 inches 226 cm
4WD Wheelbase	87 inches 220 cm
Weight	6230 to 6690 pounds
Front tire	7.50-16
Rear tire	13.6-38 (2WD)
Full dimensions and tires ...

References

1200 Selectamatic published in 1967, by David Brown
1200 Selectamatic published in 1969, by David Brown

Engine

Engine Detail — 219.4 ci / 3.6 L Diesel

Manufacturer	David Brown
Fuel Type	Diesel
Configuration	4-cylinder, liquid-cooled
Displacement	219.4 ci 3.6 L
Bore/Stroke	3.94x4.50 inches 100 x 114 mm
Power (gross)	72 hp 53.7 kW
Rated RPM	2300
Operating RPM	700-2300
Starter volts	12
Oil capacity	7.8 qts 7.4 L
Coolant capacity	14.4 qts 13.6 L

Transmission

Transmission options
6-speed gear
12-speed

Transmission — 6 forward and 2 reverse gear

Type	gear
Gears	6 forward and 2 reverse
Clutch	dry disc
Oil capacity	43.3 qts 41.0 L

Transmission — 12 forward and 4 reverse

Gears	12 forward and 4 reverse
Clutch	dry disc
Oil capacity	43.3 qts 41.0 L

Dimensions

David Brown 1200 Tires
Standard tires (ag)	Front: 7.50-16. Rear: 13.6-38 (2WD)
	Front: 10-24. Rear: 13.6-36 (4WD)

Dimensions
2WD Wheelbase	89 inches 226 cm
4WD Wheelbase	87 inches 220 cm
Length	143 inches 363 cm
2WD Width	70 inches 177 cm
4WD Width	74 inches 187 cm
2WD Weight	6230 lbs 2825 kg
4WD Weight	6690 lbs 3034 kg
2WD Clearance (front axle)	21.4 inches 54 cm
4WD Clearance (front axle)	14.2 inches 36 cm
2WD Clearance (drawbar)	16.5 inches 41 cm
4WD Clearance (drawbar)	15.9 inches 40 cm
2WD Front tread	52 to 72 inches 132 to 182 cm
Rear tread	56 to 80 inches 142 to 203 cm

David Brown 1200 Height
2WD Steering wheel	68 inches 172 cm
4WD Steering wheel	71 inches 180 cm
Cab	100 inches 254 cm
2WD Exhaust	90 inches 228 cm
4WD Exhaust	93 inches 236 cm

Tests

Nebraska Tractor Test 976
Diesel 6 speed 2WD May 22 - June 1, 1968 Link: Nebraska Tractor Test 976 file
PTO performance
Power at rated engine speed	65.23 hp 48.6 kW
Fuel use	4.1 gal/hour 15.5 l/hour
Power at rated PTO speed	60.66 hp 45.2 kW
Fuel use	3.7 gal/hour 14.0 l/hour
Drawbar performance
Max power	54.76 hp 40.8 kW
Fuel use	4.1 gal/hour 15.5 l/hour
Gear 1H used for power test.
Max pull	8385 lbs 3803 kg
Gear 1L used for pull test.

Photos

1970 David Brown 1200, restored by Guy Bolmer.

Recommended Implements & Sizing Guide

Engineering recommendations for David Brown 1200 Selectamatic based on its 72 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	3 to 4 Bottom (16")3 - 4 铧 (40 cm)	Heavy Duty	Suitable for medium loam and stubble turnover.
Rotary Cutter / MowerMowing & Clearing	7 to 8 ft (84-96 in)2.1 - 2.4 m	Heavy Duty	Heavy-duty twin spindle cutter for overgrown acreage.
Rotary TillerSeedbed Prep	78 to 84 in200 - 215 cm	Heavy Duty	Heavy commercial tiller with multi-speed gearbox.
Disc HarrowSecondary Tillage	7 to 8 ft Tandem Disc2.1 - 2.4 m 对开双排耙	Medium Duty	Field leveling and clod breaking behind plows.
Hay BalerHay & Forage	4x4 to 4x5 Round Baler1.2x1.5 m 紧凑圆捆机	Heavy Duty	Silage and dry hay; 540 RPM PTO with slip-clutch.

Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for David Brown 1200 Selectamatic.

Estimated Continuous Field Runtime: 5.8 hrs

Approximately 5.8 hours of continuous field operation at ~75% rated power on a full tank (21.7 gal / 82.1 L).

Estimated 75% Load Fuel Burn~3.7 gal/hr (14.2 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)

Standard Spec: API CK-4 / CJ-4 Heavy Duty

Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)

Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)

Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix

Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze

Service Interval: 2 Years / 1500 Hours