Engine Identification Numbers - Kohler Triad OHC TH520 Owner's Manual

General Recommendations
Purchase gasoline in small quantities and store in
clean, approved containers. A container with a capacity
of 2 gallons or less with a pouring spout is
recommended. Such a container is easier to handle
and helps eliminate spillage during refueling.
Do not use gasoline left over from the previous season,
to minimize gum deposits in fuel system and to ensure
easy starting.
Do not add oil to the gasoline.
Do not overfill the fuel tank. Leave room for the fuel to
expand.
Fuel Type
For best results use only clean, fresh, unleaded
gasoline with a pump sticker octane rating of 87 or
higher. In countries using the Research method, it
should be 90 octane minimum.
Unleaded gasoline is recommended as it leaves less
combustion chamber deposits and reduces harmful
exhaust emissions. Leaded gasoline is not
recommended and must not be used in OHC engines.
Gasoline/Alcohol blends
Gasohol (up to 10% ethyl alcohol, 90% unleaded
gasoline by volume) is approved as a fuel for Kohler
engines. Other gasoline/alcohol blends are not
approved.
Gasoline/Ether blends
Methyl Tertiary Butyl Ether (MTBE) and unleaded
gasoline blends (up to a maximum of 15% MTBE by
volume) are approved as a fuel for Kohler engines.
Other gasoline/ether blends are not approved.

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 (Figure 4) for future reference.
IMPORTANT ENGINE INFORMATION
THIS ENGINE MEETS U.S. EPA 2005 AND
CALIFORNIA 2006 EMISSION REGS FOR SI
SMALL OFF-ROAD ENGINES
FAMILY
DISPL. (CC)
MODEL NO.
SPEC. NO.
SERIAL NO.
OEM PROD. NO.
EMISSION COMPLIANCE PERIOD:
EPA:
THIS ENGINE IS CERTIFIED TO OPERATE
ON:
REFER TO OWNER'S MANUAL FOR
SAFETY, MAINTENANCE SPECS AND
ADJUSTMENTS.
FOR SALES/SERVICE IN US/CANADA, CALL:
1-800-544-2444
www.kohlerengines.com
KOHLER CO. KOHLER, WISCONSIN USA
Figure 4. Engine Identification Label.
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)
Category C
EPA
250 Hours
Moderate
CARB
125 Hours
Refer to certification label for engine displacement.
Exhaust Emission Control System for models TH520,
TH575, TH650 is EM.
N11236
CARB:
Category A
Category B
1000 Hours
500 Hours
Intermediate Extended
250 Hours 500 Hours
5