Start from the driven machine
Give the absorbed power at its working speed and the heaviest condition it sees, not its nameplate rating.
Product line · buyer page
Compare single-cylinder and V-twin air-cooled diesel engines by rated output, governed speed and power take-off.
Category directory
Models in this category
Open a model; final configuration is confirmed in the quotation.


Published specifications
Published values only; “Per quotation” is confirmed from the model datasheet and nameplate for your order.
| Specification | 173F – 195FC | 2V88F – 2V95FF |
|---|---|---|
| Rated output at 3000 rpm | 3.6 – 8.5 kW | 13.8 – 18 kW |
| Rated output at 3600 rpm | 4 – 9 kW | 14.8 – 19 kW |
| Starting system | Recoil or electric start | Electric start |
| Engine oil grade | SAE 10W-30 | SAE 10W-30, CD grade or above |
| Engine speed | 3000 / 3600 rpm | 3000 / 3600 rpm |
| Engine type | Single-cylinder, vertical, 4-stroke, air-cooled diesel engine | V-twin, 4-stroke, air-cooled diesel engine |
Choose and verify
Give the absorbed power at its working speed and the heaviest condition it sees, not its nameplate rating.
Every model is rated at both 3000 and 3600 rpm; 50 Hz and 60 Hz equipment do not use the same column.
Crankshaft take-off turns at engine speed; camshaft take-off turns at half engine speed.
| Decision field | Compare | Confirm before order |
|---|---|---|
| Rated output | Rated output at 3000 rpm and at 3600 rpm | Catalogue column and nameplate of the offered engine |
| Layout and displacement | Single-cylinder or V-twin, bore, stroke and displacement | Exact model column in the BEAR catalogue |
| Power take-off | Crankshaft or camshaft take-off and the shaft speed it gives | Shaft end and mounting interface for your machine |
| Starting system | Recoil or electric start and the battery arrangement | Standard equipment named in the quotation |
| Fuel and lubrication | Diesel grade, fuel consumption rate, oil grade and oil volume | Catalogue values for the selected model and your duty |
Visual range review
Compare visible construction and service access. Exact specifications follow the linked model record.
Size from the absorbed power of the driven machine at its working speed and leave headroom for its heaviest condition. The catalogue range runs from 3.6 kW rated at 3000 rpm on the smallest single cylinder to 18 kW on the largest V-twin, so most drivelines fall inside it. Send the machine and its duty and we confirm the column.
The catalogue rates each engine at 3000 rpm and at 3600 rpm. 3000 rpm suits 50 Hz equipment and gives longer running per tank; 3600 rpm suits 60 Hz equipment and yields more output. State the speed you will run and the quotation fixes one column.
Above roughly 12 kW rated. The single-cylinder models stop at 12 kW rated at 3000 rpm, while the V-twin models start at 13.8 kW and run to 18 kW at 912 to 1247 cc. Below that a single cylinder is lighter, simpler and cheaper to maintain.
Inside BEAR
A quick view of the product range, assembly work and prepared packaging.


