Description

MerCruiser 350 MPI ALPHA / BRAVO 300 PS (8M0188295) – Premium Repower Engine by Seawave Marine

The MerCruiser 350 MPI ALPHA / BRAVO 300 PS (8M0188295) is one of the most versatile and reliable repower engines in Mercury’s lineup—engineered for boat owners needing dependable performance, reduced fuel consumption, and modern SmartCraft diagnostic technology.

At Seawave Marine, our certified technicians have over 20 years of hands-on experience with MerCruiser repower packages and installation. Our real-world knowledge ensures you receive accurate guidance, expert fitment support, and long-term vessel reliability.

Expert Overview of the MerCruiser 350 MPI ALPHA / BRAVO 300 PS

Backed by proven field performance, the 350 MPI delivers:

• 300 HP at 5000 RPM

• Smooth throttle response using Multi-Port Fuel Injection (MPI)

• Exceptionally reliable durability thanks to Vortec cast-iron heads

• Seamless compatibility with Alpha and Bravo stern drives

• SmartCraft diagnostics for real-time system monitoring

This model is commonly used as a modern replacement for worn 5.0L, 5.0 MPI, 5.7L carbureted, and 350 MAG MPI engines.

Why This Engine Is a Top Choice for Repower Projects

Many boaters choose this engine when reviewing MerCruiser repower packages, especially for:

• Cost-effective MerCruiser repower package cost compared to full boat replacement

• Increased reliability over older 5.7L and 350 MAG engines

• Direct compatibility with both Alpha and Bravo drives

• Cleaner emissions, easier diagnostics, and better fuel control

Seawave Marine can guide you through the best MerCruiser repower options, including the 4.3L, 5.7L, 6.2L, and 8.2L series.

Internal link to repower options →
https://seawavemarine.com/collections/repower-packages

Key Features & Technology

• 300 HP @ 5000 RPM for powerful acceleration

• MPI fuel system ensures optimal fuel-air delivery

• Vortec cylinder heads for higher efficiency

• Nodular iron crankshaft for added durability

• ECM 555 with Engine Guardian for safety

• SmartCraft ready for advanced monitoring

• 9.4:1 hypereutectic pistons designed for longevity

Technical Specifications Table

Real-World Reliability & Performance 

As a certified Mercury dealer, Seawave Marine technicians have installed and serviced hundreds of MerCruiser 350 MPI engines over the last two decades. This firsthand experience ensures:

• Accurate assessment of fuel consumption

• Identification of common MerCruiser 350 MPI issues

• Proper alignment and Bravo/Alpha compatibility checks

• Diagnostic support using SmartCraft and Mercury tools

• Correct break-in, calibration, and load testing

Our expertise ensures you avoid common repower mistakes and achieve maximum engine life.

Pricing Information

The MerCruiser 350 MPI ALPHA price varies depending on availability and configuration.

For real-time pricing, visit the product page:
https://seawavemarine.com/products/mercruiser-350-mpi-alpha-bravo-300-ps

Warranty Information

Standard Factory Warranty

• 3-year Mercury manufacturer warranty

Optional Extended Coverage

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

Seawave Marine Support

• Installation guidance

• Troubleshooting

• Maintenance reminders

• Access to certified technicians

Frequently Asked Questions (FAQs)

1. What engines can the 350 MPI replace?
It directly replaces many 5.0L, 5.7L, 350 MAG MPI, and older carbureted MerCruiser engines.

2. Does the 350 MPI have known problems?
Commonly discussed “MerCruiser 350 MPI problems” usually relate to poor maintenance—fuel filters, ignition wear, or cooling system neglect. With proper servicing, the engine is highly reliable.

3. Is this engine compatible with both Alpha and Bravo drives?
Yes, that is a primary advantage of the 350 MPI ALPHA / BRAVO platform.

4. How does fuel consumption compare to older 5.7 engines?
Expect noticeably better efficiency due to MPI and updated combustion chamber design.

5. Can I get the service manual?
Yes. Ask us for the official MerCruiser 350 MPI ALPHA / BRAVO 300 PS 8M0188295 manual.

Order Your MerCruiser 350 MPI ALPHA / BRAVO 300 PS Today

Seawave Marine is an authorized Mercury dealer offering:

• Genuine MerCruiser crate engines

• Expert repower recommendations

• Fast international shipping

• Full warranty support