Kohler TH575

Kohler TH575The Kohler TH575 is a 574 cc (35.0 cu·in) V-twin air-cooled four-stroke internal combustion gasoline engine from the Triad series, manufactured by Kohler Co.

The Kohler TH575 engine has an OHC (overhead camshaft) design, an aluminum block with cast iron cylinder liners, a horizontal PTO-shaft, fuul-pressurized lubrication system, replaceable high-density paper air cleaner. This engine is equipped with a carburetor with a fixed main jet, electronic ignition system (CDI).

A 75.0 mm (2.95 in) cylinder bore and 65.0 mm (2.56 in) piston stroke give the TH575 engine a total of 574 cc of displacement. The compression ratio rating is 8.4:1.

This engine produced 18.2 PS (13.4 KW; 18.0 HP) at 3,600 rpm of horsepower and 40.0 Nm (4.1 kg·m; 29.5 ft·lb) at 2,500 rpm of torque.

The breakdown of the engine code is as follows:

  • T – Triad series
  • H – Horizontal PTO shaft
  • 575 – Displacement 575 cc

General information

Engine Specifications
Type4-stroke, OHV, V-twin
Displacement574 cm 3 (35.0 cu-in)
Max. horsepower18.2 PS (13.4 KW; 18.0 HP) at 3,600 rpm
Max. torque40.0 Nm (4.1 kg·m; 29.5 ft·lb) at 2,500 rpm
Fuel systemCarburetor with a fixed main jet
Cooling systemForced-air
Ignition systemElectronic ignition (CDI)
Lubricating systemFull-pressure lubrication
Starting systemRecoil or electic starter
Fuel usedUnleaded gasoline (octane number 86 or higher)
Dimensions (L x W X H)328 x 400 x 449 mm (12.9 x 15.7 x 17.7 in)
Dry weight43.0 kg (90.0 lbs)

Cylinder Block and Head

Cylinder block
Compression ratio:8.4:1
Bore x Stroke75.0 mm X 65.0 mm (2.95 x 2.56 in)
Sleeve internal diameter75.025-75.050 mm (2.9537-2.9547 in)
Number of piston rings (compression / oil):2 / 1
Thrust face outer diameter74.966-74.984 mm (2.9514-2.9521 in)
Piston pin outer diameter16.996-17.000 mm (0.6691-0.6693 in)
Ring-to-groove side clearance:Top0.040-0.085 mm (0.0016-0.0033 in)
Second0.030-0.076 mm (0.0012-0.0030 in)
Oil (min)0.070 mm (0.0028 in)
Ring end gap:Top0.180-0.380 mm (0.0071-0.0150 in)
Second0.180-0.450 mm (0.0071-0.0177 in)
Crankshaft main journal diameter:45.021-45.041 mm (1.7725-1.7735 in)
Crankpin journal diameter:31.948-31.966 mm (1.5338-1.2193 in)
Cylinder Head
Valve Arrangement:OHC, belt driven
Valves:2 (4 in total)
Valve head diameter:INTAKE29.180-29.430 mm (1.1488-1.1586 in)
EXHAUST26.300-26.700 mm (1.0354-1.0512 in)
Stem outer diameter:INTAKE5.982-6.000 mm (0.2355-0.2362 in)
EXHAUST5.970-5.988 mm (0.2350-0.2357 in)

Tightening torque specs

Tightening torque specs
Connecting rod11.3 Nm (1.2 kgf·m; 8.3 ft·lb)
Oil drain plug16.3 Nm (1.7 kgf·m; 12.0 ft·lb)
Oil filter5.6-9.0 Nm (0.6-0.9 kgf·m; 4.1-6.6 ft·lb)
Muffler retaining nuts24.4 Nm (2.5 kgf·m; 18 ft·lb)
Valve cover5.6 Nm (0.6 kgf·m; 4.1 ft·lb)
Flywheel66.4 Nm (6.77 kg·m; 49 ft·lb)
Spark plug24.4-29.8 Nm (2.5-3 kgf·m; 18-22 ft·lb)

Service Information

Valve clearance
Intake0.013-0.064 mm (0.0005-0.0025 in)
Exhaust0.076-0.127 mm (0.0030-0.0050 in)
Oil system
Oil typeAPI SG, SH, SJ, or higher
Recommended oilSAE 10W-30
Oil capacity1.4 liters (1.48 US.qts, 1.23 Imp. qts)
Ignition system
Spark plugChampion RC12YC
Spark plug gap0.76 mm (0.030 in)
Ignition module air gap0.200-0.300 mm (0.0079-0.0118 in)
Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

ATTENTION! Dear visitors, this site is not a trading platform, an official dealer or a spare parts supplier, so we do not have any price lists or spare parts catalogs. We are an information portal and provide the technical specifications of gasoline and diesel engines.

We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. We do not provide advice on technical issues related to the engines operation or repair. We do not recommend using provided information for engines repairing engines or spare parts ordering, use only official service manuals and spare-parts catalogs.

Be the first to comment

Leave a Reply

Your email address will not be published.