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Kohler Command PRO 20.5 HP 674cc 1"x 2.9" 20 Amp #CH640-3208

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BNE PRICE: $1,849.00

Manufacturer: Kohler
Part Number: CH640-3208

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Kohler 20.5hp Command CH640 Engine
1"x 2.9" keyed shaft, tapped 7/16" with 1/4" keyway.
OHV, cast iron cylinder liners,
Remote air filter
Less gas tank
Model CH640-3208
110 lbs

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
Engine TypeCommercial

*Length is front to rear of engine. Width is spark plug to spark plug. Height is top of air cleaner cover to mounting surface.


1 Power (hp) and Torque (ft lbs) specifications for Kohler general purpose engines are rated pursuant to Society of Automotive Engineers (SAE) J1940 based on gross output testing performed according to SAE J1995 without the air cleaner and muffler. Actual engine power and torque are lower and affected by accessories (air cleaner, exhaust, charging, cooling, fuel pump, etc.), application, engine speed, ambient operating conditions (temperature, humidity and altitude) and other factors. This J1940 / J1995 rating provides consistent measurement to customers who may want to control the intake and exhaust features of the engine. For more information, contact Kohler Co. Engine Engineering Department. Kohler Co. reserves the right to change product specifications, designs and standard equipment without notice and without incurring obligation.

2 Inches of H20 @ 3600 RPM WOT

3 J1995 power and torque certified by 3rd Party Witness

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