The Kohler K330 is a 552 cc (33.6 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine from K-series, manufactured by Kohler Co.
The Kohler K330 engine has an aluminum cylinder head, cast-iron liners, and horizontal PTO-shaft. The engine used a carburetor fuel system, magneto ignition system and lubrication system with gear type oil pump. A 92.075 mm (3.63 in) cylinder bore and 82.5 mm (3.25 in) piston stroke give the motor a total of 552 cc (33.6 cu·in) of displacement.
This engine produced 12.6 PS (9.3 kW; 12.5 HP) at 3,200 rpm of horsepower and 27.5 Nm (2.81 kg·m; 20.3 ft·lb) at 3,200 rpm of torque.
The breakdown of the engine code is as follows:
- K – K-series
- 33 – Approximate daisplacement (cu·in)
- Suffix (engine is available with the following options):
P – Direct mounted;
S – Electric starter and generator;
C – Clutch model;
General information
| Engine Specifications | |
| Model | K330 |
| Type | 4-stroke, L-head, single cylinder |
| Displacement | 551 cm 3 (33.6 cu-in) |
| Max. horsepower | 12.6 PS (9.3 kW; 12.5 HP) at 3,200 rpm |
| Max. torque (crank PTO) | 27.5 Nm (2.81 kg·m; 20.3 ft·lb) at 3,200 rpm |
| Fuel system | Carburetor |
| Cooling system | Forced-air |
| Ignition system | Magneto ignition system |
| Lubricating system | Gear-type oil pump |
| Starting system | Recoil or electric starter |
| Fuel used | Unleaded gasoline (octane number 86 or higher) |
| Fuel tank capacity | – |
Cylinder Block and Head
| Cylinder block | ||
| Compression ratio: | – | |
| Bore x Stroke | 92.075 x 82.5 mm (3.63 x 3.25 in) | |
| Number of piston rings (compression / oil): | 2 / 1 | |
| Cylinder Head | ||
| Valve Arrangement: | L-head (sidevalve) | |
| Valves: | 2 | |
Service Information
| Engine | |
| Max speed | 3,600 rpm |
| Oil system | |
| Oil type | API SF or SG |
| Recommended oil | Summer: SAE 30W Winter: SAE 5W-20, 5W-30 |
| Oil capacity | 3 qts. |
Author:
What is the air gap for the magneto on a 12.5 hp K series engine
What size is the flywheel retaining nut on k330c? An information would be greatly appreciated, trying to find a replacement for unit and it’s not been easy as the threads on the original are non existent.