Yanmar YM173 Compact Utility Tractor – Specifications & Overview
Overview
The Yanmar YM173 is a classic compact utility tractor produced between 1969 and 1974. Designed for light agricultural work, orchard use, and small farms, the YM173 is known for its simple mechanical design, excellent fuel efficiency, and long-term durability.
As one of the early models in the YM Series, it helped establish Yanmar as a trusted manufacturer of compact diesel tractors worldwide.
This model remains popular in overseas markets due to its ease of maintenance and robust diesel engine, even decades after production ended.
Engine
The YM173 is powered by a small but reliable single-cylinder diesel engine, optimized for efficiency and longevity.
| Item | Specification |
|---|---|
| Engine manufacturer | Yanmar |
| Engine type | Diesel |
| Displacement | 0.8 L |
| Cylinders | 1 |
| Rated power | 12.8 hp (9.5 kW) |
| Cooling system | Water-cooled |
| Fuel system | Mechanical injection |
Engine highlights
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Extremely low fuel consumption
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Simple structure for easy servicing
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Proven durability in agricultural environments
Transmission
A straightforward gear transmission allows stable operation and easy control, especially for first-time tractor users.
| Item | Specification |
|---|---|
| Transmission type | Gear |
| Number of speeds | 6 forward |
| Drive system | 2WD |
| Steering | Manual |
Power Take-Off (PTO)
The rear PTO supports basic implements commonly used on compact tractors.
| Item | Specification |
|---|---|
| PTO position | Rear |
| PTO speed | 540 rpm |
| PTO shaft size | 1.375 in |
Dimensions & Tires
Compact dimensions make the YM173 ideal for narrow fields, small plots, and storage with limited space.
| Item | Specification |
|---|---|
| Wheelbase | 49.2 in (124 cm) |
| Operating weight | 1,345 lbs (610 kg) |
| Front tires | 4.00-10 |
| Rear tires | 7-16 |
Electrical System
The electrical system is simple and reliable, suitable for basic lighting and starting requirements.
| Item | Specification |
|---|---|
| Ground | Negative |
| Battery voltage | 12 V |
| Battery capacity | 70 Ah |
Operator Station
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Open operator station
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No cab or canopy (depending on market configuration)
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Minimal controls for intuitive operation
Photos
At present, official catalog photos of the Yanmar YM173 are limited due to its age.
If you own a YM173 and would like to share photos, they are highly valuable for historical reference and global buyers.
Why the Yanmar YM173 Is Still Valued Today
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Proven Japanese diesel engine technology
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Compact size with strong reliability
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Ideal for small farms and light agricultural work
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Easy to maintain with basic mechanical knowledge
EVERY FARM TRACTOR has been exporting Japanese used tractors since 2006, supporting customers in over 100 countries with reliable machines like the YM173.
If you are looking for YANMAR TRACTOR, please check our stock lists.
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