143640020B Craftsman Lawn Mower - Overview

This O-ring is designed for use with small engine carburetors and is made of rubber, meaning over time and further exposure to fuel, it will become brittle and crack. This O-ring is installed within the carburetor and is located between securing screws near the base. If disassembling your equipment to replace this O-ring, it is recommende...Read mored you inspect the other parts to ensure optimal performance and to prevent any leaks. Featuring an inner-diameter of approximately 0.25-inches, the replacement process for this O-ring in your engine will vary, so check the user manual for exact location of this part.

This is an authentic replacement part manufactured for use with lawnmower engines. The bowl drain washer is used to seal the connection between the bowl drain screw and the float bowl. This bowl drain washer is available as an individual replacement part, please see model diagram for associative parts.