Kubota D600

Kubota D600The Kubota D600 is a 601 cc (36.6 cu·in) natural aspirated three-cylinders four-stroke liquid-cooled internal combustion small diesel engine, manufactured by Kubota for general-purpose applications.

The cylinder bore is 64.0 mm (2.52 in) and the piston stroke is 62.2 mm (2.45 in).

This engine produced 14.0 PS (10.3 KW; 13.8 HP) at 3,200 rpm of horsepower.

The Kubota D600 features:

  • Spherical type combustion chamber
  • Fuel injection pump
  • Centrifugal governor
  • Forced lubrication by trochoid pump
  • Water cooling system with pressurized radiator
  • Electric starter (12V, 0.7 kW)

General information

Engine Specifications
Engine modelD600
Engine type4-stroke, OHV, three-cylinders
Displacement601 cm3, (36.6 cu·in)
Max. horsepower14.0 PS (10.3 KW; 13.8 HP) at 3,200 rpm
Max. torque
Cooling systemLiquid-cooled with pressurized radiator
Lubricating systemForced lubrication by trochoid pump
Fuel systemInjection pump
Injection typeIndirect injection
Fuel usedDiesel fuel No.2-D
Starting systemElectric starter (12V, 0.7 kW)
GovernorCentrifugal governor
PTO shaft rotationCounterclockwise (from PTO shaft side)

Cylinder Block and Head

Cylinder block
Compression ratio:
Cylinder bore:64.0 mm (2.52 in)
Piston stroke:62.2 mm (2.45 in)
Cylinder internal diameter (standard):63.989-64.139 mm (2.5192-2.5252 in)
Piston skirt outer diameter (standard):63.906 mm (2.516 in)
Number of piston rings (compression / oil):2/1
Ring end gap (Top):0.430-0.885 mm (0.0169-0.0348 in)
Ring end gap (Second):0.430-0.885 mm (0.0169-0.0348 in)
Crankshaft main journal diameter:39.934-39.950 mm (1.5722-1.5728 in)
Crankpin journal diameter:33.959-33.975 mm (1.337-1.3376 in)
Crankshaft center distance:31.1 mm (1.225 in)
Cylinder head
Valve arrangement:OHV, gear driven
Valves:6 (2 valves in total)
Valve head diameter (INTAKE):26.00 mm (1.0236 in)
Valve head diameter (EXHAUST):22.50 mm (0.8858 in)
Valve steam diameter (INTAKE):5.980 mm (0.2354 in)
Valve steam diameter (EXHAUST):5.980 mm (0.2354 in)

Service Data

Valve clearance
Intake valve clearance:0.145-0.185 mm (0.0057-0.0073 in)
Exhaust valve clearance:0.145-0.185 mm (0.0057-0.0073 in)
Oil system
Lubrication system:Forced lubrication by trochoid pump
Oil type:API CC or CD
Recommended oil:SAE 30, 10W-30
Oil capacity:3.0 liters (3.17 US.qts, 2.64 Imp. qts)
Oil filter type:Full flow paper filter (cartridge)
Cooling system
TypeLiquid-cooled with pressurized radiator
Coolant capacity2.1 liters (2.22 US.qts, 1.85 Imp. qts)
Fuel system
Type:Injection pump
Electrical system
Battery:12V, 35AH or equivalent
Starting motorElectric starter (12V, 0.7 kW)


Manufacturer or BrandModels
Lawn tractors
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.

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We try to use official documentation and verify the published data, but errors may occur. In addition, specifications of machinery and equipment may vary depending on markets and modifications. We do not recommend the use of this data for spare parts or repairs. Use official service manuals or parts catalogs for your product.

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