Description
This listing is for the original 8M0090558 kit, not replacement part 8M0232733.
Mercury maintenance kit 8M0090558 is intended for scheduled 100-hour servicing of compatible 40–60HP EFI outboard engines.
Compatibility check
Match the complete engine model and serial number to the Mercury parts catalogue before ordering. Horsepower alone is not a sufficient fitment check.
Follow the service interval and procedures in the engine’s maintenance manual. Kit contents and any required additional fluids or service parts should be checked against the exact engine application.
Servicing guidance
This kit is for the compatible Mercury FourStroke EFI engine family. Verify the supplied part number and engine serial number before installation. Service-kit revisions can differ, so use the parts list supplied with the actual kit. Do not assume engine oil or gear lubricant is included.
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