David Brown 990: Everything You Need to Know

david brown 990

David Brown 990: Everything You Need to Know

Header
Brand:
David Brown
Model:
David Brown 990
Engine:
David Brown
Engine Type:
David Brown diesel 4-cylinder liquid-cooled
Transmission & Oil Capacity:
27.0 L (7.1 US. gal, 5.9 Imp. gal.)
Year:
1361- 1980
Fuel Type:
Diesel
Cylinders:
4

The David Brown 990 tractor gained widespread popularity among farmers and agricultural workers for its reliable performance. Manufactured from 1961 to 1980 in Meltham Mills, Huddersfield, England, it was available in two distinct models: the Implematic and the upgraded Selectamatic.

The initial variant, the David Brown 990 Implematic, was produced between 1961 and 1965, powered by a robust 3.0L 4-cylinder diesel engine. This versatile workhorse featured a 6-speed gearbox that provided ample power and torque. Its three-point linkage system facilitated easy attachment and detachment of implements, catering to a diverse range of farming tasks.

Transitioning to the next iteration, the David Brown 990 Selectamatic, the model spanned 1965 to 1971. It retained the same reliable 3.2L 4-cylinder diesel engine while introducing an enhanced hydraulic system. The Selectamatic boasted a 12-speed gearbox, elevating its power and versatility beyond the Implematic. A more advanced three-point linkage system further streamlined the process of attaching and detaching implements.

Continuing its legacy, the final variant, the David Brown 990 Selectamatic, was in production from 1971 to 1980. This iteration still harnessed the dependable 3.2L 4-cylinder diesel engine, now supported by an upgraded hydraulic system. The Selectamatic excelled with its 12 forward and 4 reverse speeds, catering to a broad spectrum of agricultural tasks.

Throughout its production lifespan, which started with the 990 Implematic in 1961, over 67,000 tractors were manufactured. These tractors earned a reputation for their durability and capability, solidifying their place as a staple in the farming community.

David Brown 990 Overview

David Brown 990 Overview
Image Source: youtube.com/@lambfarms7894

The David Brown 990 is a popular tractor model that was manufactured by David Brown Ltd. The tractor was produced in two variants, the Selectamatic and the Implematic. Both variants were widely used in the agricultural industry and were known for their reliability and efficiency.

Manufacturer Details

David Brown Ltd was a British engineering company that was founded in 1860. The company was known for producing high-quality tractors and other agricultural machinery. The David Brown 990 was one of the most popular tractor models produced by the company. It was manufactured from 1961 to 1971 and was sold worldwide.

Engine Specifications

The David Brown 990 was equipped with a four-cylinder diesel engine. The engine had a displacement of 3.2 liters in the Selectamatic variant and 3.0 liters in the Implematic variant.

The Selectamatic had a maximum power output of 58.0 horsepower, while the Implematic had a maximum power output of 52 horsepower. The fuel tank capacity of the Selectamatic was 16.1 gallons, while the Implematic had a fuel tank capacity of 13.74 gallons.

Transmission Details

The David Brown 990 was equipped with a four-speed manual transmission with a high and low range. The tractor had a maximum speed of 19.5 miles per hour. The Selectamatic variant had a hydraulic power shift system that allowed for easy shifting between gears, while the Implematic variant had a mechanical transmission.

Attachments

The David Brown 990 was compatible with a wide range of attachments, including plows, cultivators, and mowers. The tractor had a three-point hitch system that allowed for easy attachment and detachment of implements. The hydraulic system had a maximum flow rate of 9.5 gallons per minute, which allowed for efficient operation of hydraulic attachments.

Other General Features

The David Brown 990 had a comfortable operator’s seat and a spacious cab. The tractor was equipped with a power steering system that made it easy to maneuver in tight spaces. The tractor had a weight of approximately 5760 to 6700 pounds, which made it stable and easy to operate on uneven terrain.

In conclusion, the David Brown 990 was a reliable and efficient tractor model that was widely used in the agricultural industry. The tractor was known for its powerful engine, efficient transmission, and compatibility with a wide range of attachments.

990 Selectamatic Serial Numbers

1961:440001
1962:441323
1963:450376
1964:460376
1965:472273
1966:483768
1967:496283
1968:504690
1969:808150
1970:818301
1971:826009
1972:850600
1973:854403
1974:859367
1975:863900
1976:11070001
1977:11080236
1978:11089141
1979:11096828
1980:11104577

Pros and Cons of David Brown 990

The David Brown 990 Selectamatic is a tractor that has been around for decades and has proven to be a reliable workhorse for many farmers. However, like any machine, it has its pros and cons.

Pros

  • Sturdy design: The David Brown 990 is built to last, with a robust frame and a durable engine that can handle tough jobs.
  • Fuel efficiency: The 990 is known for its fuel efficiency, which can save farmers money in the long run.
  • Easy to maintain: The tractor is relatively easy to maintain, with many parts readily available from dealers.
  • Versatile: The 990 can handle a variety of tasks, from plowing fields to hauling heavy loads.

Cons

  • Lack of modern features: The 990 lacks many modern features that farmers have come to expect, such as power steering and air conditioning.
  • Limited horsepower: With a horsepower rating of around 50, the 990 may not be powerful enough for some tasks.
  • Poor hydraulics: The hydraulics on the 990 are known to be poor and can be prone to issues that require a knowledgeable mechanic.
  • Parts availability: While many parts are readily available, some parts for the 990 can be hard to find due to its age.

Pricing Information

The David Brown 990 tractor was first introduced in the 1960s and was produced until the late 1970s. The price of a David Brown 990 tractor varies depending on several factors, including the year of manufacture, the condition of the tractor, and the location of the seller.

According to TractorData.com, the original price of a David Brown 990 Selectamatic in 1976 was $9,000. However, the current market value of a David Brown 990 tractor can vary widely. TractorData.com also provides a graph of used David Brown 990 tractor sales prices in the United States. The sales prices range from excellent to poor condition, and the prices may not be indicative of dealer asking prices.

When purchasing a David Brown 990 tractor, it is important to consider the condition of the tractor, any additional features or attachments included, and the location of the seller. Some sellers may offer financing options or warranties, which can affect the final price of the tractor.

Potential buyers should also research the market value of similar tractors to ensure they are getting a fair price. Auction sites, such as TractorHouse.com, offer a range of David Brown 990 tractors for sale. The prices of these tractors can vary depending on factors such as the year of manufacture, the condition of the tractor, and any additional features or attachments included.

Overall, the price of a David Brown 990 tractor can vary widely depending on several factors. Potential buyers should research the market value of similar tractors and consider the condition of the tractor, any additional features or attachments included, and the location of the seller before making a purchase.

Conclusion

The David Brown 990 is a classic tractor that has stood the test of time. It was ahead of its time in terms of technology and design, and it remains a popular choice for farmers and enthusiasts alike. Its sturdy design, power steering, flow control on the linkage, suspension seats, synchro gear shifting, and four-range transmission are just a few of the features that make it a reliable and efficient tractor.

The David Brown Company was one of the largest tractor manufacturers in the United Kingdom, and the 990 was one of its most successful models. It was produced from 1961 to 1971, and it was available in several different versions, including the Implematic, the Selectamatic, and the 990A.

Today, the David Brown 990 is considered a collector’s item, and many enthusiasts are willing to pay top dollar for a well-maintained example. It is a testament to the quality and durability of the tractor that so many are still in use today, more than 50 years after they were first produced.

Overall, the David Brown 990 is a classic tractor that deserves its place in agricultural history. It was a game-changer in its time, and it continues to be a reliable and efficient workhorse for farmers and enthusiasts alike.

Technical Specifications

Engine Details
Engine Model: David Brown
Bore and stroke: 3.939x4.00 inches 100 x 102 mm
Engine type: David Brown diesel 4-cylinder liquid-cooled
Compression ratio: 17.0:1
Cylinders: 4
Horsepower: 58.9 PS (43.3 kW; 58.0 HP) at 2,200 rpm
Fuel type: Diesel
Starter: Electric
Fuel Capacity: 67.8 liters (17.9 US gal.; 14.9 Imp. gal)
Coolant Capacity: 14.8 qts 14.0 L
Rated RPM: 2200
Displacement: 195 ci 3.2 L
Intake valve clearance: NA
Torque RPM: NA
Exhaust valve clearance: NA
Power Details
Drawbar (Claimed):​ 45.2 hp 33.7 kW
Drawbar (Tested): 45.68 hp 34.1 kW
PTO (Claimed): 52.9 hp 39.4 kW
PTO (Tested): 53.77 hp 40.1 kW
Belt (Claimed): NA
Belt (Tested): NA
Plows: NA
Transmission and Chassis​
Chassis: 4x2 2WD 4x4 MFWD 4WD
Transmission type: 12-speed partially synchronized
Steering type: Power
Gears: 12 forward and 4 reverse
Brakes: Hydraulic Drum
Speed: NA
Transmission model: NA
Transmission oil capacity: 27.0 L (7.1 US. gal, 5.9 Imp. gal.)
Dimensions and Tires​
Wheelbase: 82 inches 208 cm
Front tire: Front: 6.00-19, Front: 9.5-24.
Weight: 5760 to 6700 pounds
Rear tire: 12.4-36 (2WD), Rear: 12.4-36 (4WD)
Height: NA
Height (Exhaust): NA
Hitch And Attachments​
Mower deck type: NA
Mower deck size: NA
Mid mower deck: NA
Mid mower deck size: NA
Blade type: NA
Blade Width: NA
Hitch type: NA
Attachment list: NA

Quick Overview:

Header
Brand:
David Brown
Model:
David Brown 990
Engine:
David Brown
Engine Type:
David Brown diesel 4-cylinder liquid-cooled
Transmission & Oil Capacity:
27.0 L (7.1 US. gal, 5.9 Imp. gal.)
Year:
1361- 1980
Fuel Type:
Diesel
Cylinders:
4

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