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The TECUMSEH 27666 is a breather body designed for small engine applications in lawn and garden equipment. The breather body serves as a key component of the engine crankcase ventilation system, allowing pressure to vent from the crankcase while preventing oil from escaping into the air cleaner assembly. Proper crankcase venting is essential for maintaining engine compression, reducing oil consumption, and preventing seal damage. This part is sourced from TECUMSEH, a recognized manufacturer of small engine components and assemblies used across a wide range of outdoor power equipment.
The 27666 breather body is intended for use in TECUMSEH small engines found in lawn and garden applications. Typical installations include walk-behind lawn mowers, riding mowers, tillers, and similar outdoor power equipment powered by TECUMSEH engines. This is an OEM replacement part suited for technicians and service shops performing engine maintenance, rebuild, or repair work on TECUMSEH-powered equipment.
Designed as an OEM-style replacement breather body for TECUMSEH small engines used in lawn and garden equipment. Refer to your engine model and specification number to confirm fitment before installation.
Installation should be performed by a qualified small engine technician. Shut off the engine and allow it to cool completely before beginning any crankcase or valve cover service. Inspect the breather reed valve and gasket surfaces during replacement to ensure a proper seal. Follow the engine manufacturer's service manual for torque and assembly procedures specific to the engine model being serviced.
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