UtilityPerformance profile
UTB/Universal 643
The UTB/Universal 643 is a utility tractor built for farm work. It has a strong diesel engine made by UTB with 4 cylinders. The engine can produce 64 horsepower, which is above average for tractors like this. It has a direct injection system that helps it use fuel well. This tractor has a versatile transmission with 12 forward gears and 3 reverse gears. This gives the driver many options for different tasks. The 643 has both a 540 and 1000 PTO, which lets it work with many types of farm equipment. It has a Category II hitch at the back for attaching tools. The tractor weighs 6,192 pounds, making it sturdy enough for tough jobs. It has an open operator station, so drivers should be ready for outdoor conditions. The UTB/Universal 643 is 149.2 inches long and 100.4 inches tall. It has agricultural tires on both the front and back. The hydraulic system is an open center type, which is common for tractors of this size. With its mix of power and features, this tractor is a good choice for farmers who need a reliable machine for various farm tasks.
ManufacturerUTB/UniversalPower64 hpEngine4-cylTransMultiple (constant mesh, creeper, shuttle)
Image not recorded
Quick specs
- Category
- Utility
- Engine Power Output
- 64hp
- Operating Weight
- 6,192 lb
- Transmission
- Multiple (constant mesh, creeper, shuttle)
At a glance
How the 643 compares
vs. Utility medianDistribution
Engine Power (hp)
Across all Utility tractors
64 hp · 57th
This model
9
Median 55 hp
177
This modelUtility tractorsMediann = 5,383
The 643 ranks at the 57th percentile for engine power among recorded utility tractors.
Overview
About the UTB/Universal 643
The UTB/Universal 643 is a utility tractor built for farm work. It has a strong diesel engine made by UTB with 4 cylinders. The engine can produce 64 horsepower, which is above average for tractors like this. It has a direct injection system that helps it use fuel well. This tractor has a versatile transmission with 12 forward gears and 3 reverse gears. This gives the driver many options for different tasks. The 643 has both a 540 and 1000 PTO, which lets it work with many types of farm equipment. It has a Category II hitch at the back for attaching tools. The tractor weighs 6,192 pounds, making it sturdy enough for tough jobs. It has an open operator station, so drivers should be ready for outdoor conditions. The UTB/Universal 643 is 149.2 inches long and 100.4 inches tall. It has agricultural tires on both the front and back. The hydraulic system is an open center type, which is common for tractors of this size. With its mix of power and features, this tractor is a good choice for farmers who need a reliable machine for various farm tasks.
Full specifications
Every recorded spec
General
| Manufacturer | UTB/Universal |
|---|---|
| Model | 643 |
| Category | Utility tractor |
| Operating weight | 6,192lb |
Engine
| Make | UTB |
|---|---|
| Power | 64hp |
| Cylinders | 4 |
| Displacement | 219.4ci |
| Bore | 4.02in |
| Stroke | 4.33in |
Transmission
| Type | Multiple (constant mesh, creeper, shuttle) |
|---|---|
| Forward gears | 12 |
| Reverse gears | 3 |
Chassis & drive
| Cab | Open |
|---|
Hydraulics
| Type | Open center |
|---|
Power take-off
| Rear PTO | 540/1000 |
|---|
Dimensions
| Length | 149.2in |
|---|---|
| Height | 100.4in |
| Operating weight | 6,192lb |
Capacities
| Cooling system | 3.7gal |
|---|
Head to head
643 vs. Utility median
How the UTB/Universal 643 compares to other Utility tractors
| Spec | This model | Utility median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 64 hp | 55 hp | +16% | 57th |
| Engine Displacement | 219 ci | 183 ci | +20% | 60th |
| Cylinders | 4 | 4 | at median | 50th |
| Forward Gears | 12 | 12 | at median | 50th |
| Operating Weight | 6,192 lb | 5,303 lb | +17% | 58th |
| Length | 149 in | 137 in | +9% | 65th |
| Height | 100 in | 94.1 in | +7% | 66th |
Medians and percentiles are computed from the utility tractors in our database with a recorded value for each spec (sample sizes 4,321–5,720 models).
Compare to tractors with similar specs
Commonly compared UTB/Universal tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| UTB/Universal 640 | 65 hp | 4,400 lb | — | Compare → |
| UTB/Universal 650 | 65 hp | 8,818 lb | — | Compare → |
| UTB/Universal 683 | 68 hp | — | — | Compare → |
| UTB/Universal 684 | 68 hp | — | — | Compare → |
| UTB/Universal C6862 | 68 hp | — | — | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Barreiros 70.7 | 64 hp | 5,450 lb | — | Compare → |
| Allis Chalmers 6060 | 63.21 hp | 6,465 lb | 1980–1984 | Compare → |
| Allis Chalmers D17 | 63 hp | 4,675 lb | 1957–1967 | Compare → |
| Belarus 500 | 65 hp | 6,100 lb | — | Compare → |
| Barreiros 5500 | 67 hp | — | — | Compare → |
Explore
UTB/Universal siblings
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FAQ
Common questions
How much horsepower does the UTB/Universal 643 have?
The UTB/Universal 643 produces 64 hp from its 4-cylinder engine. Engine displacement is 219.4 ci.
What transmission is in the UTB/Universal 643?
Transmission on the UTB/Universal 643 is Multiple (constant mesh, creeper, shuttle), with 12 forward speeds.
What type of hydraulic system does the UTB/Universal 643 use?
Hydraulics on the UTB/Universal 643 are Open center.
What hitch category is the UTB/Universal 643?
The UTB/Universal 643 uses a Category 3 hitch.
How much does the UTB/Universal 643 weigh?
The UTB/Universal 643 weighs about 6,192 lb in operating condition.
What maintenance does the UTB/Universal 643 require?
Like any tractor, the UTB/Universal 643 needs periodic engine oil and filter changes, hydraulic fluid checks, and regular greasing and inspection. The owner's manual lists the manufacturer's recommended service intervals.