MerCruiser 350 MPI 300 PS BRAVO / ALPHA 8M0093550 – High-Performance Marine Engine

5.7L Multi-Port Fuel-Injected Power for Exceptional Performance | JB Marine GmbH

The MerCruiser 350 MPI 300 PS BRAVO / ALPHA 8M0093550 represents the latest generation of high-performance inboard marine engines from Mercury Marine — combining American engineering excellence with efficiency, smoothness, and proven reliability.

Designed around the legendary 350 cubic-inch V-8 platform, this 5.7-litre powerhouse delivers 300 horsepower at 5200 RPM with cutting-edge Multi-Port Fuel Injection (MPI) technology. For boat owners seeking a MerCruiser motor for sale that offers superior acceleration, reduced fuel consumption, and extended service life, the 350 MPI 300 PS is the definitive upgrade.

At JB Marine GmbH, we supply genuine MerCruiser inboard engines across Germany and Europe, backed by manufacturer warranty, expert guidance, and fast worldwide delivery.

Unmatched Power & Performance

Built to outperform, the MerCruiser 350 MPI combines raw V-8 strength with modern electronic efficiency. Its MPI system ensures precise fuel atomization and combustion, providing instant throttle response, smoother idling, and optimized emissions control.

Performance Highlights

• Power Output: 300 HP (224 kW) @ 5200 RPM

• Displacement: 5.7 L / 350 cu in V-8

• Compression Ratio: 9.4 : 1 for optimum torque & efficiency

• Fuel System: Electronic Multi-Port Fuel Injection (MPI)

• Fuel Type: 87-Octane Unleaded Gasoline

• Drive Compatibility: BRAVO & ALPHA stern-drive systems

Delivering crisp mid-range torque and steady top-end performance, this engine is perfect for planing cruisers, powerboats, and repower projects where both speed and dependability matter.

Robust Construction & Durability

Engineered for long-term reliability, the MerCruiser 350 MPI is built with marine-grade components that withstand both freshwater and saltwater conditions.

Engineered Components

• Nodular iron crankshaft for maximum torsional strength

• Roller camshaft for reduced friction and smoother valve timing

• Quicksilver iron cylinder heads for superior heat dissipation

• Hypereutectic pistons for durability and efficiency under load

• Stainless-steel valves and screw-in rocker studs for precision valve control

Each element is optimized for thermal stability, corrosion resistance, and vibration reduction, ensuring a long service life and consistent output.

Advanced Multi-Port Fuel Injection System

The MPI system delivers fuel directly to each cylinder through precision injectors, controlled by Mercury’s proprietary ECM (Engine Control Module) for perfect combustion efficiency.

MPI System Benefits

• Instant start-up and smooth idle

• Faster throttle response under all loads

• Lower fuel consumption and emissions

• Improved reliability over traditional carbureted systems

• Integrated diagnostics via PCM/ECM interface

This intelligent fuel system makes the MerCruiser 350 MPI one of the most efficient inboard gasoline engines in its power class.

Optimized Cooling & Thermal Management

The water-cooled system with thermostat regulation ensures stable operating temperatures under all conditions.

Cooling System Highlights

• Closed-loop, thermostat-controlled water cooling

• High-capacity circulating pump

• Optional sea-water cooling or heat-exchanger systems

• Corrosion-resistant internal pathways for long-term durability

With stable thermal performance, this engine maintains consistent power output and reduced wear.

Technical Specifications – MerCruiser 350 MPI 300 PS BRAVO / ALPHA

Installation & Compatibility

The 350 MPI 300 PS Bravo/Alpha is a direct fit for many 2005 and later MerCruiser 5.0L MPI sterndrive systems. It’s supplied with a voucher for PCM/ECM calibration, simplifying repower conversions.

Compatibility Highlights

• Replaces MerCruiser 5.0L Bravo/Alpha engines

• Perfect upgrade for inboard gasoline vessels seeking more horsepower

• Suitable for planing cruisers, sport boats, and performance craft

JB Marine GmbH’s technicians can provide installation consultation and system integration support to ensure seamless operation.

Fuel Efficiency & Operating Economy

The MerCruiser 350 MPI’s MPI system and efficient 9.4:1 compression ratio deliver high performance on regular 87-octane fuel.
This translates to lower running costs, extended range, and fewer emissions, ideal for both recreational and commercial boaters.

Warranty & After-Sales Support – JB Marine GmbH

Every MerCruiser 350 MPI 300 PS engine sold by JB Marine GmbH includes comprehensive manufacturer coverage:

Warranty Details

• 3-Year Limited Factory Warranty

• Optional Mercury Product Protection (MPP) for up to 5 years total coverage

• Authorized Mercury Service Support through certified dealers worldwide

Customer Support Includes

• Expert installation assistance & troubleshooting

• Genuine Mercury spare parts availability

• Technical guidance for Bravo/Alpha repower projects

With JB Marine GmbH, you receive factory-approved service backed by professional marine engine experts.

Frequently Asked Questions (FAQ)

 What makes the MerCruiser 350 MPI different from other Mercury inboard engines?
It offers higher horsepower, greater torque, and superior fuel efficiency with the latest MPI technology, delivering smoother, quieter performance.

Can I install this engine in my boat?
Yes — it fits most Bravo and Alpha sterndrive configurations. Contact JB Marine for installation verification and compatibility checks.

How often should I service this engine?

• Oil and filter change: every 100 hours or annually

• Cooling system flush: after each saltwater use

• Spark plug & fuel filter replacement: every 300 hours

What fuel does the MerCruiser 350 MPI use?
Standard 87-octane unleaded gasoline for cost-efficient operation without power loss.

Where can I buy this engine?
Directly from JB Marine GmbH, your trusted European supplier for Mercury Marine inboard engines, guaranteeing genuine products, warranties, and expert service.

Order Your MerCruiser 350 MPI 300 PS Bravo / Alpha Today

Searching for the best MerCruiser engine for sale in Europe?
The MerCruiser 350 MPI 300 PS Bravo/Alpha 8M0093550 delivers the perfect blend of power, reliability, and efficiency, backed by JB Marine GmbH’s expertise and Mercury’s factory warranty.

 Visit JBMarineGmbH.de to request a quote, technical sheet, or installation consultation.
Experience the power of Mercury engineering with Europe’s trusted marine engine partner — JB Marine GmbH.