Compatible Models: This small horsepower boat part is designed for Mercury Mariner 4 Stroke outboard engines in 2HP, 2.5HP, 3.5HP, 4HP, 5HP, and 6HP models, covering a wide range of compact marine motors
OEM Reference: This OEM equivalent gasket is manufactured to replace the original part numbers 27-803508013 and 803508013 for use in maintenance and repair tasks.
Product Packaging: This 2 piece repair kit contains two gaskets made from a durable, Asbestos-free composite material suitable for long-term use in marine environments.
Function: Used for sealing the carburetor mounting surface to help maintain correct air-fuel ratio and ensure smooth engine operation, acting as a reliable intake system seal.
Usage Scenario: This fuel system service part is suitable for replacement when diagnosing engine performance issues such as hard starting or inconsistent running, or as part of a comprehensive carburetor service.