Kohler K330

Kohler K330The 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.
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3 Comments

  1. 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.

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