Experience exceptional power, reliability, and performance with this Brand New Mercury 300 HP Outboard Motor, engineered to deliver outstanding acceleration, fuel efficiency, and dependable operation for both recreational and commercial boating applications. Whether you’re upgrading your current vessel or powering a new build, the Mercury 300 HP is designed to provide smooth performance in demanding marine environments.
This outboard motor is in brand-new condition and has never been operated on the water. It has only been started twice using a flushing hose to verify proper installation and system operation, ensuring you receive a motor that is virtually new and ready for service.
Designed with Mercury’s renowned engineering, the 300 HP outboard delivers impressive torque, responsive throttle control, and long-lasting durability. It is an excellent choice for offshore fishing boats, center consoles, performance boats, and other vessels requiring dependable high horsepower.
The manufacturer’s warranty is transferable to the new owner, providing additional confidence and peace of mind with your purchase.
At EZ Boats Marine, we are committed to supplying premium new and outboard motors backed by expert customer support and worldwide shipping options. Our experienced team can help verify compatibility with your vessel and answer any technical questions before purchase.
Key Features
- Brand new Mercury 300 HP outboard motor
- Never operated on the water
- Tested only during initial startup using a flushing hose
- Powerful and fuel-efficient 4-stroke performance
- Excellent acceleration and dependable reliability
- Transferable manufacturer warranty
- Ideal for offshore, recreational, and commercial boats
- Expert compatibility support from EZ Boats Marine



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