| Engine Model | YTO-45 |
| Type | 4 stroke,In-line |
| Intake Method | Turbocharged, air-to-air cooler |
| Bore | 110 mm |
| Stroke | 135 mm |
| No. of Cylinder | 4 |
| Displacement | 5.13L |
| Compression Ration | 10.5:1 |
| Flywheel Teeth Number | 159 |
| Flywheel Housing/Flywheel Size | SAE 3/11.5# |
| Crankshaft Rotation Direction (facing flywheel) | anticlockwise |
| Rotational Part of the Moment of Inertia | 0.25 kg.m2 |
| Maximum allowable bending moment at the rear end of the cylinder | 1356 N.m |
| Engine weight | 220 kg |
| Rated Power(NG) | 45kw |
| Rated Speed | 1500 r/min |
| Steady Speed Fluctuation Rate | ±0.25% |
| Idle Speed | 850～1000 r/min |
| Piston Speed | 6 m/s |
| Friction Power | 6.4 kW |
| 50%Rated Power | 16.4 m3/h |
| 100%Rated Power | 28 m3/h |
| Air Intake Flow | 310 m3/h |
| Turbocharger outlet pressure | 180 kPa |
| turbocharger outlet temperature | 124℃ |
| Exhaust Temperature (after turbine) | ≤610℃ |
| Coolant Flow | 2.0 L/s |
| Fan Power Consumption | 49 kW |
| Valve Clearance | |
| Intake Valve Clearance | 0.3 mm |
| Exhaust Valve Clearance | 0.61 mm |
| Maximum Intake Resistance | |
| Air filter with dirty filter core | 6 kPa |
| Standard clean filter | 4 kPa |
| Maximum intake manifold temperature (ambient temperature 25℃) | 50℃ |
| Maximum intake pressure drop (from turbocharger to throttle) | 8.5 kPa |
| Maximum allowable exhaust back pressure | 10 kPa |
| Cooling System | Water cooling |
| Engine coolant capacity | 30 L |
| Maximum allowable cooling cycle resistance outside the engine | 28 kPa |
| Maximum static pressure of cooling water above the center-line of engine crankshaft | 14 m |
| Regulating range of standard thermostat | 82～95℃ |
| Minimum pressure allowed by the pressure cap | 69 kPa |
| Maximum coolant temperature | 100℃ |
| Low idle | 207 kPa |
| Rated idle | 345 kPa |
| Maximum allowable engine oil temperature | 121℃ |
| Lubrication capacity | 50 |
| Maximum inclination angle of oil pan | lean forward 40/ backward 40/ roll 40 |
| Mix type | Premixing before turbocharger |
| Air-fuel ratio control | Wide oxygen closed loop control lean burn |
| Gas type | Natural gas |
| Allowed minimum gas low calorific value | 32.44 MJ/m3 |
| Allowed gas pressure (before mixer) | Front mixer 3-5kpa,Pressure fluctuation≤1kpa/min |
| Motor Starter | 24 V |
| Battery charging system (negative ground) | 40 A |
| Maximum allowable starting resistance | 0.002Ω |
| Recommended minimum battery capacity | 2×90 Ah |
| Ignition order | 1-5-3-6-2-4 |
| Battery voltage low/high alarm value | 18/28 V |
| Water temperature alarm/stop value | 98/100℃ |
| Oil pressure alarm/stop value | 1.4/1.0 bar |
