MerCruiser 4.5L 250 HP MPI Alpha

Description

MerCruiser 4.5L 250 HP MPI Alpha – High-Performance V6 Inboard Engine – Powerful and Efficient Marine Engine for Smooth, Reliable Performance

The MerCruiser 4.5L 250 HP MPI Alpha is a next-generation V6 marine engine engineered for superior performance, fuel efficiency, and long-term durability. Designed with advanced MPI (Multi-Port Fuel Injection) technology, this lightweight yet powerful inboard boat motor is the ideal choice for boaters seeking improved acceleration, high fuel economy, and seamless integration with SmartCraft digital controls.

With a compact and lightweight design, the MerCruiser 4.5L 250 HP MPI Alpha provides smooth and efficient power for a variety of boats, making it a top choice for those looking to upgrade their inboard MerCruiser engine.

Key Features & Benefits

Unmatched Power & Acceleration

• 250 HP @ 4800-5200 RPM – Delivers a strong power curve for enhanced performance and acceleration.
• 4.5L V6 Configuration – Offers high torque output for quicker plane times and better fuel efficiency.
• Lightweight Design – Weighing only 343 kg, this engine provides better weight distribution and efficiency compared to traditional big-block marine engines.

Fuel Efficiency & Smart Monitoring

• MPI Fuel System (Multi-Port Fuel Injection) – Optimizes fuel delivery for better combustion, reduced emissions, and lower fuel consumption.
• SmartCraft® Compatibility – Enables seamless integration with digital displays, gauges, and engine monitoring systems.

Durable & Reliable Marine Engine

• Compact V6 Engine Block – Designed for easy installation and repower compatibility with various inboard motors.
• Advanced Cooling System – Ensures optimal engine temperature regulation for longer lifespan and efficient operation.
• Corrosion-Resistant Construction – Built with marine-grade materials to withstand harsh saltwater and freshwater environments.

Ideal for a Variety of Boats

• Perfect for boats requiring a powerful yet compact engine
• Direct replacement for older MerCruiser inboard motors
• Designed for sport boats, cruisers, and small to mid-sized powerboats

Technical Specifications

Specification	Details
Power Output	250 HP (184 kW) @ 4800-5200 RPM
Engine Type	V6 4.5L MPI (Multi-Port Fuel Injection)
Displacement	4.5L
Fuel System	Multi-Port Fuel Injection (MPI)
Bore & Stroke	4.00″ x 3.6″ (102mm x 92mm)
Engine Dimensions (L x W x H)	696mm x 740mm x 559mm
Weight	343 kg
Ignition System	ECM with SmartCraft Compatibility
Cooling System	Advanced Raw Water Cooling
Exhaust System	Marine-Optimized Corrosion-Resistant Exhaust
Recommended Fuel	87 Octane

Why Choose the MerCruiser 4.5L 250 HP MPI Alpha?

• Fuel-Efficient V6 Power – Delivers the performance of a larger engine while being lighter and more fuel-efficient.
• Seamless Repower Option – Ideal upgrade for aging MerCruiser inboard motors with improved reliability.
• High Torque & Acceleration – Provides superior hole-shot performance and smooth cruising speeds.
• Industry-Leading Engineering – Designed with marine-grade materials for durability in harsh conditions.
• Compact & Lightweight – Easier installation and handling compared to traditional big-block engines.

Warranty & Support

The MerCruiser 4.5L 250 HP MPI Alpha comes with a 3-Year Limited Factory Warranty, ensuring peace of mind and protection against manufacturing defects.

Frequently Asked Questions (FAQs)

What boats are compatible with this engine?
This engine is an excellent replacement for older MerCruiser inboard motors and is suitable for sport boats, powerboats, and cruisers.

Is this engine suitable for saltwater use?
Yes, it is built with marine-grade corrosion-resistant components to ensure durability in both freshwater and saltwater environments.

What type of fuel does this engine require?
This engine is designed to run on 87 Octane fuel, making it a cost-effective and efficient choice.

Does the price include installation?
No, the price is for the engine only. However, Seawave Marine offers expert installation guidance and recommendations for professional marine mechanics.

Can I install this engine myself?
While it is possible for experienced boat owners to handle installation, professional installation is recommended to ensure proper engine alignment and performance.

Order Your MerCruiser 4.5L 250 HP MPI Alpha Today

Upgrade your boat with the most advanced, fuel-efficient, and reliable inboard marine engine available. The MerCruiser 4.5L 250 HP MPI Alpha offers the perfect combination of power, efficiency, and durability, ensuring an unmatched boating experience.