MerCruiser 350 MPI ALPHA/BRAVO 300 HP (8M0136293) – Premium Marine Inboard Engine
Powerful, Efficient, and Reliable
The MerCruiser 350 MPI ALPHA/BRAVO 300 HP delivers 300 HP at 5000 RPM with a 5.7L V8 engine, engineered for smooth acceleration, optimized fuel efficiency, and exceptional durability. Perfect for repowering older inboard motors or upgrading your existing sterndrive, this engine combines advanced MPI technology with marine-grade components for long-lasting performance.
Key Features & Benefits
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300 HP Output – Smooth acceleration with high torque
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Multi-Port Fuel Injection (MPI) with Cool Fuel II – Better fuel economy and lower emissions
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SmartCraft-Ready ECM555 – Real-time engine monitoring and protection
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Dry Joint Exhaust & Raw Water Cooling – Corrosion-resistant, perfect for saltwater and freshwater
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100% New Quicksilver Components – Cast iron engine block, Quicksilver cylinder heads, and hypereutectic pistons
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Seamless Sterndrive Compatibility – Works with Alpha and Bravo drives; optional parts available for Alpha One (Gen I)
Technical Specifications
| Specification | Details |
|---|---|
| Engine Model | MerCruiser 350 MPI ALPHA/BRAVO 300 HP |
| Order Number | 8M0136293 |
| Horsepower | 300 HP @ 5000 RPM |
| Displacement | 350 cu in / 5.7L |
| Engine Type | V8 Marine Engine |
| Fuel System | MPI with Cool Fuel II |
| Compression Ratio | Standard |
| Crankshaft | High-Strength Steel |
| Camshaft | Roller Camshaft |
| Cylinder Heads | Quicksilver Cast Iron with Black-X Valve Tech |
| Ignition | ECM555, SmartCraft Ready |
| Cooling System | Raw Water with Warm Exhaust Manifolds |
| Exhaust System | Dry Joint Exhaust |
| Fuel Type | 87 Octane Gasoline |
| Included Components | Flame graphics, heat exchanger, NGK plugs, ignition harness |
| Drive Compatibility | Alpha & Bravo (optional Alpha One Gen I components required) |
Why Choose the MerCruiser 350 MPI 300 HP?
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Ideal Repower Solution: Replaces 5.0 EFI, 5.0L MPI, 5.7L EFI, and 350 MPI sterndrive Alpha engines
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Durable & Corrosion-Resistant: Built for freshwater and saltwater performance
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Fuel-Efficient & Smart Monitoring: Optimized MPI fuel system with real-time SmartCraft diagnostics
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Seamless Installation: Designed for compatibility with existing sterndrive controls
Warranty & Support
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3-Year Factory Limited Warranty – Protection against defects
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Expert installation guidance and after-sales support available
