6
Engine Identification Numbers
When ordering parts, or in any communication
involving an engine, always give the Model,
Specification, and Serial Numbers of the engine.
The engine identification numbers appear on a decal
affixed to the engine shrouding. Include letter suffixes,
if there are any.
Record your engine identification numbers on the
identification label below (Figure 5) for future
reference.
The Emission Compliance Period referred to on the
Emission Control or Air Index label indicates the
number of operating hours for which the engine has
been shown to meet Federal and CARB emission
requirements. The following table provides the Engine
Compliance Period (in hours) associated with the
category descriptor found on the certification label.
Emission Compliance Period (Hours)
EPA
CARB
Category C
250 hours
Moderate
125 hours
Category B
500 hours
Category A
1000 hours
Intermediate
250 hours
Extended
500* hours
*Extended hours for Model CH750 is 1000.
Refer to certification label for engine displacement.
Exhaust Emission Control System for models
CH18,20,22,23,730,740,750 is EM. Exhaust Emission
Control System for models CH26 and CH745 are EM,
O2S, ECM, MFI.
Model Designation
Model CH20S for example: C designates Command
engine, H designates horizontal crankshaft, and 20
designates horsepower. Some model numbers (CH730)
use a numerical designation rather than horsepower. A
letter suffix designates a specific version as follows:
Suffix Designates
S Electric Start
ST Electric Start/Retractable Start
QS Quiet Model/Electric Start
EP Electric Plant
CS Clutch Model/Electric Start
Operating Instructions
Also read the operating instructions of the equipment this engine
powers.
Pre-Start Checklist
• Check oil level. Add oil if low. Do not overfill.
• Check fuel level. Add fuel if low.
• Check cooling air intake areas and external
surfaces of engine. Make sure they are clean and
unobstructed.
• Check that the air cleaner components and all
shrouds, equipment covers, and guards are in
place and securely fastened.
IMPORTANT ENGINE INFORMATION
THIS ENGINE MEETS U.S. EPA AND CA 2005 AND
LATER AND EC STAGE II (SN:4) EMISSION REGS
FOR SI SMALL OFF–ROAD ENGINES
KOHLER CO. KOHLER, WISCONSIN USA
EMISSION COMPLIANCE PERIOD:
EPA: CARB:
CERTIFIED ON:
REFER TO OWNER'S MANUAL FOR HP RATING,
SAFETY, MAINTENANCE AND ADJUSTMENTS
FAMILY
TYPE APP
DISPL. (CC)
MODEL NO.
SPEC. NO.
SERIAL NO.
BUILD DATE
OEM PROD. NO.
1-800-544-2444 www.kohlerengines.com
N11236
For Models CH18-745
SAFETY, MAINTENANCE AND ADJUSTMENTS
1-800-544-2444 www.kohlerengines.com
IMPORTANT ENGINE INFORMATION
THIS ENGINE MEETS EMISSION REGS FOR U.S. EPA
2005 AND LATER AND EC STAGE II (SN:4) SI
SMALL OFF-ROAD ENGINES AND CA 2005 AND
KOHLER CO. KOHLER, WISCONSIN USA
OEM PROD. NO.
EMISSION COMPLIANCE PERIOD:
EPA: CARB:
CERTIFIED ON:
REFER TO OWNER'S MANUAL FOR HP RATING,
LATER LSI ENGINES
FAMILY
TYPE APP
DISPL. (CC)
MODEL NO.
SPEC. NO.
SERIAL NO.
BUILD DATE
For Model CH750
Figure 5. Engine Identification Label.
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