The YaMZ-651 engine is a 6-cylinder 4-stroke diesel engine with an in-line arrangement of cylinders, a liquid cooling system, turbocharging and charge air cooling in an air-to-air heat exchanger installed on a vehicle (without an EGR system).
In terms of emissions of harmful substances, it corresponds to environmental class 4 for road machinery – UN Regulation No. 49-05C (level B1 with EOBD system), No. 24-03 – euro-4.
To achieve the ecological level euro-5, the SCR system installed on the vehicle and the PM-CAT catalytic converter were used. The battery-type fuel system (ECRS) by R. Bosch.
Specifications
| Cylinder bore, mm | 123 |
| Piston stroke, mm | 156 |
| Displacement, cc | 11,12 |
| Power output, kW (hp) | 303 (412) |
| Max torque output, Nm (kgf·m) | 1911 (195) at 1200-1400 rpm |
| Compression ratio | 16,4 |
| Firing order | 1 – 5 – 3 – 6 – 2 – 4 |
| Specific fuel consumption | 193 gramme/kW·hour (142 gramme/HP·hour) |
| Engine lifespan, thousand km | 1000 |
| Dimensions, mm (LxWxH) | 1286 / 935 / 1126 |
| Weight, kg | 1030 |
| Euro standards (UN rules) | № 49-05C (B1, EOBD) – euro-4 |
Layout of YMZ-651 nodes
| Left side | Front view | Right side |
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