UtilityPerformance profile
David Brown 990 Implematic
The David Brown 990 Implematic is a utility tractor made from 1961 to 1965. It's a 2WD tractor with a manual steering system and a gear transmission that has 6 forward speeds and 2 reverse speeds. This tractor is good for various farm tasks. The 990 Implematic has a 4-cylinder diesel engine made by David Brown. The engine is liquid-cooled and naturally aspirated, with an average displacement of 185.8 ci. It produces 52 hp at 2200 rpm, which is about average for tractors of its time. The tractor weighs 4272 lb and has standard agricultural tires. It's 117.7 inches long, 66.9 inches wide, and 55.9 inches tall. The tractor has a rear hitch and both 540 and 1000 rpm PTO speeds. It also has an open operator station and electric starter.
ManufacturerDavid BrownPower52 hpEngine4-cylTransGear / Partially Synchronized
Image not recorded
Quick specs
- Category
- Utility
- Engine Power Output
- 52hp
- Operating Weight
- 4,272 lb
- Transmission
- Gear / Partially Synchronized
At a glance
How the 990 Implematic compares
vs. Utility medianDistribution
Engine Power (hp)
Across all Utility tractors
52 hp · 47th
This model
9
Median 55 hp
177
This modelUtility tractorsMediann = 5,383
The 990 Implematic ranks at the 47th percentile for engine power among recorded utility tractors.
Overview
About the David Brown 990 Implematic
The David Brown 990 Implematic is a utility tractor made from 1961 to 1965. It's a 2WD tractor with a manual steering system and a gear transmission that has 6 forward speeds and 2 reverse speeds. This tractor is good for various farm tasks. The 990 Implematic has a 4-cylinder diesel engine made by David Brown. The engine is liquid-cooled and naturally aspirated, with an average displacement of 185.8 ci. It produces 52 hp at 2200 rpm, which is about average for tractors of its time. The tractor weighs 4272 lb and has standard agricultural tires. It's 117.7 inches long, 66.9 inches wide, and 55.9 inches tall. The tractor has a rear hitch and both 540 and 1000 rpm PTO speeds. It also has an open operator station and electric starter.
Full specifications
Every recorded spec
General
| Manufacturer | David Brown |
|---|---|
| Model | 990 Implematic |
| Category | Utility tractor |
| Type | 4x2 2WD |
| Years built | 1961–1965 |
| Operating weight | 4,272lb |
Engine
| Make | David Brown |
|---|---|
| Power | 52hp |
| Cylinders | 4 |
| Displacement | 185.8ci |
| Bore | 3.62in |
| Stroke | 4.49in |
Transmission
| Type | Gear / Partially Synchronized |
|---|---|
| Forward gears | 6 |
| Reverse gears | 2 |
Chassis & drive
| Chassis | 4x2 2WD |
|---|---|
| Drive | 2WD |
| Steering | Manual |
| Brakes | Differential Mechanical Expanding Shoe |
| Cab | Open Operator Station |
Hydraulics
| Type | Open Center |
|---|
Power take-off
| Rear PTO | Transmission |
|---|---|
| PTO speed | 540rpm |
Dimensions
| Length | 117.7in |
|---|---|
| Width | 66.9in |
| Height | 55.9in |
| Operating weight | 4,272lb |
Capacities
| Cooling system | 3.6gal |
|---|
Head to head
990 Implematic vs. Utility median
How the David Brown 990 Implematic compares to other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 52 hp | 55 hp | -5% | 47th |
| Engine Displacement | 186 ci | 183 ci | +1% | 50th |
| Cylinders | 4 | 4 | at median | 50th |
| Forward Gears | 6 | 12 | -50% | 11th |
| Operating Weight | 4,272 lb | 5,303 lb | -19% | 41st |
| Length | 118 in | 137 in | -14% | 24th |
| Width | 66.9 in | 66 in | +1% | 52nd |
| Height | 55.9 in | 94.1 in | -41% | 6th |
Medians and percentiles are computed from the utility tractors in our database with a recorded value for each spec (sample sizes 3,933–5,720 models).
Compare to tractors with similar specs
Commonly compared David Brown tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| David Brown 50D | 50 hp | 6,130 lb | 1953–1958 | Compare → |
| David Brown 990 Selectamatic | 55 hp | 5,104 lb | 1965–1970 | Compare → |
| David Brown 780 | 46 hp | 3,470 lb | 1967–1971 | Compare → |
| David Brown 880 Selectamatic | 46 hp | 3,970 lb | 1965–1971 | Compare → |
| David Brown 990 Selectamatic (1971-1980) | 58 hp | 5,754 lb | 1971–1980 | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| AGCO GT45 | 52 hp | 4,806 lb | — | Compare → |
| Agco GT45A | 52 hp | 5,820.3 lb | — | Compare → |
| Barreiros 50.55 | 52 hp | 5,100 lb | — | Compare → |
| Barreiros R-500 | 52 hp | — | — | Compare → |
| Agco ST52a | 52.1 hp | 3,494.4 lb | — | Compare → |
Explore
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FAQ
Common questions
What years was the David Brown 990 Implematic manufactured?
Production of the David Brown 990 Implematic ran from 1961 through 1965.
What hydraulics does the David Brown 990 Implematic have?
The David Brown 990 Implematic uses an Open Center hydraulic system.
What three-point hitch category does the David Brown 990 Implematic use?
The David Brown 990 Implematic has a Category II/I three-point hitch.
How powerful is the David Brown 990 Implematic?
The David Brown 990 Implematic has an engine power output of 52 hp. It is powered by a 4-cylinder engine displacing 185.8 ci.
What is the working weight of the David Brown 990 Implematic?
The operating weight of the David Brown 990 Implematic is approximately 4,272 lb.
What type of transmission does the David Brown 990 Implematic have?
The David Brown 990 Implematic uses a Gear / Partially Synchronized transmission offering 6 forward gears.
What routine service does the David Brown 990 Implematic need?
Regular maintenance for the David Brown 990 Implematic includes checking and changing engine oil, hydraulic fluid, and filters, plus routine inspections as recommended in the owner's manual. Always follow the manufacturer's maintenance schedule for specific intervals and procedures.