525 EFI

CNC machined, 502 C.I.D. (8.2L) cylinder block is equipped with heavy-duty connection rods and forged aluminum pistons for maximum strength and durability.
Custom Edelbrock aluminum cylinder heads designed exclusively for Mercury Racing for enhanced torque and overall performance.
Advanced, factory installed closed-cooling system features five-year coolant for reduced maintenance and increased corrosion protection.
Mercury PCM microprocessor optimizes fuel and spark timing for each cylinder independently for enhanced engine running quality.
SmartCraft Engine Guardian continually monitors engine conditions to protect against potential damage.
High flow power steering system provides larger volume and higher flow for multiple engine applications
Large oil lines and filter enhance engine lubrication for improved overall engine protection.
Water-cooled fuel system maintains fuel temperature at optimal levels to combat potential for vapor lock.
105 amp charging system provides an ample power supply for today’s advanced marine electronics.
Multiple drive options fit for any application – from race boats to sport cruisers.
Universal mount system provides better fit and finish and reduced installation time.
Available in an array of color options in additional to the standard Mercury Racing blue metallic.