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HP525 EFI
KEY FEATURES
- CNC machined, 502 C.I.D. (8.2L) cylinder block is equipped with heavy-duty connecting rods and forged aluminum pistons for maximum strength and durability.
- The Mercury PCM 07 microprocessor optimizes fuel control for each cylinder independently, enhancing engine running quality and performance.
- Advanced, factory installed closed-cooling system features five-year coolant for reduced maintenance and increased corrosion protection.
Suitable for
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In The News
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CUSTOM COLOR OPTIONS
The HP525 EFI comes standard in Mercury Racing Blue Metallic. Seven additional color options are also available.



