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Add to CartGenuine OEM Mercury - Mercruiser part. 300-Hour Service Kit for Mercury Outboards. These maintenance kits are made to make routine outboard maintenance easy.
Application: 40‑60 HP 4 Cyl. EFI Fourstroke (standard gearcase only)
Maintenance Kit Includes:
Mercury recommends to use the following products for optimal marine engine performance
8M0078630 25W-40 Synthetic Marine Oil
858064K01 High Performance Gear Lube
Use Quickare with every fill up to maximize engine performance
Use Quickleen to clean out the fuel system and combustion chamber of deposit build up
Use Quickstor before storing your engine to help prevent regular and ethanol-blended fuel from breaking down and oxidizing
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
Other Details
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