They comply with the Tier standards which have been made technically possible through the incorpo- ration of pre-combustions chambe injection instead of common rail / unit injection. This eliminates the need for vulnerable electronic devices for control of fuel volumes and improves the operational reliability. This design allowed the engines to pass and obtain the US Coast Guard approval for use as lifeboat engines.
Further to these features, the BUKH BETA series demonstrates outstanding qualities when it comes to the relationship between weight and power.
| Max continuous rating (ISO3046) at | 48 HP (35.3 kW) | |
| at RPM | 2800 | |
| Reverse-reduction gear ratio (standard) | 2.82:1 | |
| Reverse-reduction gear ratio (optional) | 2.09:1 or 1.53 :1 | |
| Engine rotation (looking forward) | Anti-clockwise | |
| Propeller rotation (looking forward) | Clockwise | |
| Number of cylinders | 4 | |
| Bore and stroke | 87.0 x 92.4 mm (3.43 x 3.64 in) | |
| Swept volume | 2197 cm3 (134.07 cu in) | |
| Cycle | 4-stroke | |
| Cooling system (standard) | Keel-cooling | |
| Inclination, max. fore | 30o | |
| Heel, max, continuous | 25o | |
| Fuel consumption, full load | 8.6 l/h (1.90 galls/h) | |
| Air consumption | 2676 l/min | |
| Exhaust temperature | 520oC | |
| Electric starter motor | 12V (1.4 kW) | |
| Charging alternator | 14V, 50 Amp, 700W | |
| Net weight, incl. gearbox | 250 kg (551 lbs) | |
| Installation drawing No. | 009M8501 |