Kohler K341 (16.0 HP, 588 cc) Engine: Specs & Review

Kohler K341 Engine Specs

The Kohler K341 is a 35.88 cu·in, 588 cc single-cylinder air-cooled four-stroke internal combustion gasoline engine from K-series, made by Kohler Co.

The Kohler K341 engine has a horizontal PTO shaft and L-head (side valve) design. This Kohler K341 engine can be fitted with Kohler or Walbro carburetor, magneto, battery, or breakerless ignition systems. The Kohler K341 engine used a paper air cleaner (an oiled foam pre-cleaner was available).

The cylinder bore is 3.75 in (95.3 mm), and the piston stroke is 3.25 in (82.6 mm). This engine delivered 16.2 PS (11.9 kW; 16.0 HP) at 3,600 rpm horsepower.

The breakdown of the engine code is as follows:

  • K – K-series
  • 34 – Approximate displacement (cu·in)
  • 1 – Single cylinder
  • Suffix (engine is available with the following options):
  • S – Electric starter;
  • T – Retractable starter;
  • ST – Electric and retractable starter;
  • EP – Electric plant;
  • A – Special oil pan;
  • C – Clutch model;
  • G – Generator applications;
  • P – Pump model;
  • Q – Quled model;
  • R – Reduction gear;

Kohler K341 Engine Specs

Engine Specifications

Type4-stroke, L-head, single cylinder
Displacement588 cm 3 (35.88 cu-in)
Max. horsepower16.2 PS (11.9 kW; 16.0 HP) at 3,600 rpm
Max. torque (crank PTO)
Fuel systemCarburetor (Kohler or Walbro, fixed main jet or adjustable main jet)
Cooling systemForced-air
Ignition systemMagneto or battery or breakerless ignition system
Lubricating systemSplash type
Starting systemRecoil or electric starter
Fuel usedUnleaded gasoline (octane number 86 or higher)
Fuel tank capacity

Cylinder Head

Valve Arrangement:L-head (sidevalve)
Valve head diameter:INTAKE34.798-35.052 mm (1.370-1.380 in)
EXHAUST34.798-35.052 mm (1.370-1.380 in)
Stem outer diameter (standard):INTAKE7.887-7.899 mm (0.3105-0.3110 in)
EXHAUST7.833-7.851 mm (0.3084-0.3091 in)

Cylinder block

Compression ratio:
Bore x Stroke95.3 X 82.6 mm (3.75 x 3.25 in)
Sleeve internal diameter95.2627-95.2373 mm (3.7505-3.7495 in)
Piston skirt outer diameter95.0595-95.0214 mm (3.7425-3.741 in)
Number of piston rings (compression / oil):2 / 1
Ring end gapTop0.177-0.432 mm (0.007-0.017 in)
Second0.177-0.432 mm (0.007-0.017 in)
Connecting rod small end ID22.2428-22.2504 mm (0.8757-0.876 in)
Piston pin outer diameter22.2300-22.2352 mm (0.8752-0.8754 in)

Tightening torque specs

Cylinder head bolt34-41 Nm; 3.5-4.2 kg·m; 25-30 ft·lb
FlywheelNut: 68-81 Nm; 6.98.2 kg·m; 50-60 ft·lb
Screw: 30-35 Nm; 3.0-3.5 kg·m; 22-27 ft·lb
Spark plug25-30 Nm; 2.55-3.06 kg·m; 18-22 ft·lb

Service Information

Max speed3,600 rpm
Valve clearance
Intake valve clearance0.20-0.25 mm (0.0079-0.0098 in)
Exhaust valve clearance0.43-0.48 mm (0.0169-0.0189 in)
Oil system
Oil typeAPI SF or SG
Recommended oilSummer: SAE 30W
Winter: SAE 5W-20, 5W-30
Oil capacityK321: 1.9 L (2.01 US. qt, 1.67 Imp. qt.)
K321A: 1.2 L (1.27 US. qt, 1.06 Imp. qt.)
Ignition system
Spark plugChampion: RH10
Spark plug gap0.65 mm (0.0256 in)

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Final Words

This concludes our discussion of the Kohler K341 engine specs and review; however, if you have any questions regarding this article, please submit them in the comment section below. We will do our best to respond to you as soon as possible.

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