

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The KOHLER 1204109-s is an OEM replacement air cleaner base gasket designed to seal the interface between the air cleaner assembly and the engine base on Kohler small engines. This gasket prevents unfiltered air from bypassing the air cleaner element and entering the intake, protecting the engine from premature wear. It is a direct-fit component used in routine maintenance and air cleaner service on Kohler-powered lawn and garden equipment. Engine service technicians and small engine mechanics install this part as part of air filter housing removal, cleaning, or replacement procedures.
This gasket is suited for use on Kohler small engines found in residential and light commercial lawn and garden applications, including walk-behind mowers, riding mowers, and other outdoor power equipment powered by Kohler engines. It is intended as an OEM-specification replacement to restore a proper air-tight seal at the air cleaner base whenever the air cleaner housing is serviced or the original gasket shows signs of deterioration or compression set.
Designed as an OEM-style replacement air cleaner base gasket for compatible Kohler small engines used in lawn and garden equipment. Consult the Kohler parts lookup tool with your engine model and spec number to confirm fitment before ordering.
Installation is typically performed by small engine technicians or qualified service personnel. Shut down the engine completely and allow it to cool before removing the air cleaner assembly. Inspect the mating surfaces on the engine base and air cleaner housing for debris or damage before installing the new gasket. Follow the engine manufacturer's service manual for proper reassembly sequence and fastener seating guidance.
Thanks for subscribing!
This email has been registered!