Yanmar YM240
Power
24 hp
Production
1977-1981
Engine
Diesel, 2-cylinder
Transmission
Gear
Weight
1698 lbs [770 kg]
Drive
2WD/4WD
Introduction
Yanmar YM240 Compact Utility Tractor
The Yanmar YM240 is a compact utility tractor produced in Japan between 1977 and 1981. Designed for versatility in agricultural and landscaping environments, it features a robust liquid-cooled engine and a mechanical transmission system.
Engine and Performance
The tractor is powered by a 2-cylinder diesel engine with a displacement of 69.87 cubic inches (1.1 liters). It generates 24 horsepower at a rated engine speed of 2400 RPM. The unit features a compression ratio of 20:1 and produces a torque of 46.9 lb-ft at 1800 RPM, providing consistent power for light-duty field work.
Transmission and Drivetrain
The transmission uses a gear-driven system providing 8 forward and 2 reverse speeds, organized into two ranges. Shifting requires the tractor to be stationary and the operator to engage the dry disc clutch. The YM240 is available in both two-wheel drive and four-wheel drive configurations, utilizing mechanical steering and internal expansion brakes.
Hydraulics and PTO
The hydraulic system utilizes an open-center design operating at a pressure of 2204 psi (152.0 bar). The rear power take-off (PTO) provides two speeds, 540 and 1000 RPM, selectable at 2200 engine RPM, and includes an overrunning clutch. An optional front PTO is available for specific implement requirements.
Dimensions and Handling
With a wheelbase of 58.7 inches for the 2WD model and 61.6 inches for the 4WD version, the tractor offers a compact footprint suited for confined spaces. The machine weight ranges from 1698 lbs to 1931 lbs depending on the drive configuration. It is equipped with a Category I rear hitch for implement attachment.
Conclusion
The Yanmar YM240 is a utilitarian machine suitable for small-scale farming, gardening, and property maintenance. Its compact dimensions and manual control systems provide a straightforward platform for operators requiring a reliable, entry-level diesel tractor.
Production Information of Yanmar, YM240
- Original price was $6,000 in 1981
- Compact Utility tractor
- Built in Japan
| Manufacturer | Yanmar |
|---|
Dimension and Tires Information of Yanmar, YM240
| Front tread | 33.1 inches [84 cm] |
|---|---|
| 2WD Wheelbase | 58.7 inches [149 cm] |
| 2WD Weight | 1698 lbs [770 kg] |
| Width | 48.8 inches [123 cm] |
| 4WD Wheelbase | 61.6 inches [156 cm] |
| Rear tread | 39.4 inches [100 cm] |
| 4WD Weight | 1931 lbs [875 kg] |
| Length | 111.2 inches [282 cm] |
| Lawn/turf front | 20x8.00-10 (2WD) |
|---|---|
| Ag front | 4.00-15 (2WD) |
| Ag front | 5.00-15 |
| Ag front(optional) | 11.2-24 (4WD) |
| Ag front(optional) | 6.00-14 (4WD) |
| Ag front(optional) | 27/8.50-15 (4WD) |
| Ag rear | 11.2-24 |
| Ag rear | 9.5-24 (2WD) |
| Ag rear(optional) | 11.2-24 (4WD) |
| Lawn/turf rear | 13.6-16 (2WD) |
Engine Specifications of Yanmar, YM240
- Liquid-cooled
- Diesel
- 2-cylinder
| Torque RPM | 1800 |
|---|---|
| Displacement | 69.87 ci [1.1 L] |
| Compression | 20:1 |
| Bore/Stroke | 3.543x3.543 inches [90 x 90 mm] |
| Starter volts | 12 |
| Torque | 46.9 lb-ft [63.6 Nm] |
| Rated RPM | 2400 |
| Power | 24 hp [17.9 kW] |
Transmission Information of Yanmar, YM240
Transmission variants 1
- Four gears, plus reverse, in two ranges. Tractor must be stopped, and clutch used, to shift gears or range.
| Type | Gear |
|---|---|
| Gears | 8 forward and 2 reverse |
| Clutch | Dry disc |
Mechanical Specs of Yanmar, YM240
- Two- or four-wheel drive
- Open operator station.
- Manual steering
- Mechanical internal expansion brakes
Power Information of Yanmar, YM240
| Rear PTO | Transmission |
|---|---|
| Rear PTO(optional) | 1000@2200 |
| Engine RPM | 540@2200 |
| Clutch | Overrunning |
| Front PTO | Optional |
| Rear PTO Type | 540/1000 |
Hydraulics Specifications of Yanmar, YM240
| Type | Open center |
|---|---|
| Pressure | 2204 psi [152.0 bar] |
Three-Point Hitch of Yanmar, YM240
| Rear Type | I |
|---|
Electrical System of Yanmar, YM240
| Ground | Negative |
|---|---|
| Charging system | Generator |
| Battery volts | 12 |
Where it sits
With 24 HP, the Yanmar YM240 sits between YM2402 (23 HP) and AF-26 (25 HP) in Yanmar's range. Its power puts it in the 13th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the Yanmar YM240 have?
The Yanmar YM240 delivers 24 HP.
What years was the Yanmar YM240 produced?
The Yanmar YM240 was produced in 1977-1981.
What engine does the Yanmar YM240 have?
The Yanmar YM240 is powered by a Diesel, 2-cylinder engine.
What transmission does the Yanmar YM240 use?
The Yanmar YM240 uses a Gear transmission.
How much does the Yanmar YM240 weigh?
The Yanmar YM240 weighs 1698 lbs [770 kg].
Is the Yanmar YM240 4WD?
The Yanmar YM240 is available in 2WD/4WD.