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You work your tail off 12+ hours a day. It's time to hold your engine to the same standard. With extended maintenance intervals and fuel-efficient operation, KOHLER Command PRO engines work as hard as you do.

  • Integrated oil coolers extend oil-change intervals and maintain low temperatures during the entire power range
  • High-efficiency, heavy-duty air filters provide protection from debris and ensure longer service intervals
  • Extra-large sleeve bearings support heavy loads in commercial and industrial environments
Engine type

4-cycle, gasoline, OHV, cast iron cylinder liners, aluminium block

ModelCommand PRO CH640
HP (kW) 120.5(15.3)
Displacement (cc)41.1 (674)
Bore in (mm)3.1 (80)
Stroke in (mm)2.6 (67)
Gross Torque ft lbs (Nm) 135.7 (48.4)
Compression Ratio8.5:1
Dry Weight lbs (kg)90 (41)
Oil Capacity US qts (L)2 (1.9)
LubricationFull pressure w/full-flow filter
Dimensions LxWxH (in)*14 x 17.7 x 19.0
Backpressure Limit 250
Certified Power HP (kW) 320.9 (15.6)
Certified RPM3600
Emissions Compliance
  • CARB Phase III
  • EPA Phase III
  • EU Stage V
Engine TypeCommercial
Thumb File information
CH640 Owners Manual.pdf 1.17MB 180

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Kohler Command Pro CH640 20.5HP Petrol Engine


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Tags: CH640-3201