The Lugger L731 is a 1.13 L 3-cylinder natural engine rated at 1800 rpm. It powers generator sets from Northern Lights, including the M773LW. It holds 4 L (1.1 gal) of oil.
| Oil capacity | 4.0 L |
|---|---|
| Displacement | 1.13 L |
| Cylinders | 3 |
| Aspiration | natural |
| Rated speed | 1800 rpm |