The Yanmar YM155 is a 2WD or 4WD (YM155D) sub-compact utility tractor manufactured by Yanmar from 1976 to 1979. The Yanmar YM155 is equipped with a 0.7 L (40.4 cu·in) two-cylinder diesel engine and a gear type transmission with 6 forward and 2 reverse gears.
The Yanmar YM155 sub-compact utility tractor used the Yanmar 2TR13A engine. It is a 0.7 L, 662 cm2, (40.4 cu·in) two-cylinder natural aspirated diesel engine with 75.0 mm (2.95 in) of the cylinder bore and 75.0 mm (2.95 in) of the piston stroke. The compression ratio rating is 23.0:1. This engine produced 15.2 PS (11.2 kW; 15.0 HP) at 2,700 rpm of output power and 39.2 N·m (4 kg·m, 28.9 ft·lb) at 2,200 rpm of torque.
Yanmar YM155 Specifications
| General Specifications | |
| Model | Yanmar YM155 |
| Length | – |
| Width | – |
| Height | – |
| Wheel base | – |
| Ground clearance | – |
| Weight | 544 kg (1,200 lbs) |
| Fuel tank capacity | – |
| Battery | – |
| Cabin type | Open operator station |
| Engine | |
| Engine model | Yanmar 2TR13A |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 2 |
| Fuel type | Diesel |
| Displacement | 0.7 L, 662 cm2, (40.4 cu·in) |
| Bore and stroke | 75.0 mm X 75.0 mm (2.95 in X 2.95 in) |
| Compression ratio | 23.0:1 |
| Horsepower | 15.2 PS (11.2 kW; 15.0 HP) at 2,700 rpm |
| Torque | 39.2 N·m (4 kg·m, 28.9 ft·lb) at 2,200 rpm |
| Starter | Electric |
| Transmission and chassis | |
| Chassis | 4×2 2WD or 4×4 MFWD 4WD |
| Steering type | – |
| Brakes | – |
| Transmission model | – |
| Transmission type | Gear type |
| Gears | 6 forward and 2 reverse |
| Tires | |
| Front tires | Ag: – |
| Rear tires | Ag: 8-16 |
| Three-Point Hitch | |
| Category | I |
| Control type | – |
| Lift capacity (at ends) | – |
| PTO (Power take-off shaft) | |
| Rear PTO type | – |
| Rear PTO speed | 540 rpm |