4.5L 250HP ECT
The Next Generation
Featuring a host of engineering innovations, the 4.5L series establishes new standards for power-to-weight ratio, driver experience, acceleration, durability, and ease of maintenance.
- HP / kW 250 / 186
- Maximum RPM (WOT) 4800-5200
- Engine type V6, 2-valve/cylinder pushrod
- Displacement (L) 4.5
- Fuel delivery system Computer controlled Multi-Port Electronic Fuel Injection (MPI)
- Named Top Product by Boating Industry
The Mercury Marine 4.5L 200hp sterndrive is a 2015 Boating Industry Top Product of the year.
The winning products were selected based on many factors, including innovation, impact on the industry, and how they advanced their category or created a new category.
In 2014, the Mercury MerCruiser 4.5L sterndrive engine was named an Innovation Award Winner at the International Boatbuilders Exhibition & Conference (IBEX).
- Repower Financing
With Mercury Repower Financing, you can easily power up everything from fishing boats, to runabouts, to cruisers with flexible financing on the engine. You can also choose to finance rigging, gauges, controls and even labor. Mercury Repower Financing offers low rates and low monthly payments to fit a boater’s budget.
- Built for Marine
Designing a V-6 block solely for marine use allows Mercury to build the 4.5L with the ultimate protection system, using cast-iron componentry where the engine intersects with seawater, and using corrosion-resistant aluminum and composites everywhere else.
- Powerful Performer
Thanks to its new, long-runner scroll intake manifold which draws in more air and converts it into additional torque, the 4.5L delivers a ground-breaking power-to-weight ratio and gives you V-8 power in a V-6 package.
- Smooth & Quiet
The 4.5L’s newly designed rear-facing throttle body, anti-whistle throttle plate, engine cover and mounts, lightweight flywheel, fuel-supply module, and structural oil pan all work together to deliver a superior idle, smoothness and low vibration. Resulting in an exceptional driving experience.
- Corrosion Protection
The MercFusion Paint System creates an outer seal against the elements, while MerCathode® provides automatic protection against galvanic corrosion. For maximum defense against saltwater effects, the SeaCore® industrial hardcoat anodizing system and closed-cooling circuit is available.
- Sporty Handling
The 4.5L comes standard with Adaptive Speed Control, which automatically maintains engine rpm regardless of load or water conditions. The result is increased throttle response and a sporty feel.
- Easy to Maintain
When service is required, maintenance is a snap with the front-mounted drive lube monitor, color-coded maintenance points – including easy-to-reach oil filter and fill – and “how-to” videos that can be accessed via the QR code on the label.
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Mercury Mercruiser 4.5L (250HP)
If you are not 100% satisfied with your purchase, you can return the product and get a full refund or exchange the product for another one, be it similar or not. You can return a product up to 30 days from the date you purchased it with a 20% restocking fee.
Once we receive your item, we will inspect it and notify you that we have received your returned item. We will immediately notify you on the status of your refund after inspecting the item. If your return is approved, we will initiate a refund to your credit card (or original method of payment) with a 20% restocking fee. You will receive the credit within a certain amount of days, depending on your card issuer's policies.
If you have any questions on how to return your item to us or about your refund, contact us.