| Engine | Displacement | Bore & Stroke | Power output (max.) | Net Torque |
| Two cylinders | ||||
| LEK752C | 706 cc (43.1 cu.in.) | 75.0 x 80.0 mm (2.95 x 3.15 in.) | 13.0 HP at 2,600 rpm | 36.2 Nm at 2,000 rpm |
| LEK752C2 | 706 cc (43.1 cu.in.) | 75.0 x 80.0 mm (2.95 x 3.15 in.) | 13.0 HP at 2,600 rpm | – |
| LEK802D | 804 cc (49.1 cu.in.) | 80.0 x 80.0 mm (3.15 x 3.15 in.) | 16.0 HP at 2,700 rpm | – |
| LET862C | 1,134 cc (69.2 cu.in.) | 85.0 x 100.0 mm (3.35 x 3.94 in.) | 19.8 HP at 2,500 rpm | – |
| LE892 | 1,272 cc (77.7 cu.in.) | 90.0 x 100.0 mm (3.54 x 3.94 in.) | 25.0 HP at 2,500 rpm | – |
| Three cylinders | ||||
| S723 | 879 cc (53.6 cu.in.) | 72.0 x 72.0 mm (2.83 x 2.83 in.) | 14.0 HP at 2,500 rpm 16.0 HP at 2,700 rpm | 48.8 Nm at 1,800 rpm |
| K773 | 1,117 cc (68.2 cu.in.) | 77.0 x 80.0 mm (3.03 x 3.15 in.) | 22.0 HP at 2,800 rpm | 58.3 Nm at 1,600 rpm |
| H843 | 1,396 cc (85.2 cu.in.) | 84.0 x 84.0 mm (3.31 x 3.31 in.) | 26.0 HP at 2,700 rpm | 75.5 Nm at 1,500 rpm |
| LEM853 | 1,429 cc (87.2 cu.in.) | 85.0 x 84.0 mm (3.35 x 3.31 in.) | 30.0 HP at 2,800 rpm | – |
| T853A | 1,702 cc (103.8 cu.in.) | 85.0 x 100.0 mm (3.35 x 3.94 in.) | 32.0 HP at 2,500 rpm | 96.1 Nm at 2,000 rpm |
| Four cylinders | ||||
| T854B | 2,268 cc (138.4 cu.in.) | 85.0 x 100.0 mm (3.35 x 3.94 in.) | 38.0 HP at 2,500 rpm | 121.4 Nm at 2,000 rpm |
