Buy MerCruiser 383 MAG STROKER INBOARD 350 HP (865108R10) – High-Performance V8 Marine Engine | JB Marine GmbH
When performance, endurance, and precision engineering matter most, the MerCruiser 383 MAG STROKER INBOARD 350 HP (865108R10) stands as the ultimate solution for serious boat owners. Now available from JB Marine GmbH, this high-performance V8 inboard engine delivers 350 horsepower at 5000 RPM with unmatched torque, smooth acceleration, and advanced fuel efficiency, redefining marine propulsion standards worldwide.
Unleash Marine Power with the MerCruiser 383 MAG STROKER
The MerCruiser 383 MAG STROKER is engineered for power, durability, and precision control. With 383 cubic inches of displacement, Multi-Port Fuel Injection (MPI), and Gen 3 Cool Fuel technology, this engine provides optimal fuel delivery, reduced emissions, and impressive throttle response for both recreational and commercial marine applications.
Perfect for repowering 5.7L, 6.0L, or 7.4L marine engines, this model offers a true performance upgrade that transforms your vessel’s handling and efficiency while ensuring reliability under any sea condition.
Key Features & Advantages
Exceptional Power & Acceleration
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350 HP @ 5000 RPM for consistent power and quick throttle response
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383 cu in displacement delivers superior torque and performance over standard 5.7L or 6.0L engines
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Optimized for fast planing, high-speed cruising, and heavy-load operation
Advanced Multi-Port Fuel Injection (MPI)
The MPI system ensures precision fuel metering for clean combustion, improved throttle response, and greater fuel efficiency. With Gen 3 Cool Fuel technology, it delivers cooler, denser air to the combustion chamber, improving power output and reducing emissions.
Marine-Grade Durability
Built with 4340 forged steel crankshaft, high-lift billet camshaft, and Vortec cast iron cylinder heads featuring stainless steel valves, the MerCruiser 383 MAG STROKER provides superior strength and corrosion resistance for long-term performance in both saltwater and freshwater environments.
SmartCraft & Engine Guardian Integration
Equipped with ECM555 engine management and Engine Guardian protection, this engine continuously monitors temperature, oil pressure, and RPM to safeguard performance. The SmartCraft digital system enables real-time monitoring, diagnostics, and fuel consumption data directly on compatible displays.
Easy Repower Compatibility
The 10-pin wiring harness and mechanical throttle and shift configuration make installation simple. Designed as a drop-in replacement for most standard rotation MerCruiser inboards, this engine provides hassle-free integration with existing mounts and controls.
Technical Specifications – MerCruiser 383 MAG STROKER INBOARD 350 HP
| Specification | Details |
|---|---|
| Power Output | 350 HP @ 5000 RPM |
| Displacement | 383 cu in |
| Engine Type | MerCruiser V8 with Vortec Cast Iron Cylinder Heads |
| Fuel System | Multi-Port Fuel Injection (MPI) |
| Crankshaft | 4340 Forged Steel |
| Camshaft | High-Lift Billet Steel |
| Pistons | 9.0:1 Hypereutectic Pistons |
| Cooling System | Raw Water Cooling |
| Ignition System | ECM555 with SmartCraft Compatibility |
| Exhaust System | Dry Joint |
| Oil System | 100 PSI High-Pressure Pump |
| Drive System | Premium Dual-Stage Driveplate |
| Fuel Type | 87 Octane |
| Harness Type | 10-Pin |
| Starter Position | Inboard High-Mount |
| Warranty | 3-Year Limited Factory Warranty |
Designed for Power, Efficiency & Longevity
The MerCruiser 383 MAG STROKER is more than an upgrade, it’s a transformation. With increased cubic displacement, enhanced airflow, and stronger internal components, this engine delivers unrivaled torque for heavy-duty applications while maintaining exceptional fuel efficiency at cruising speed.
Its Dry Joint Exhaust system reduces corrosion, extending engine life even in saltwater conditions. Combined with Vortec combustion technology, the engine ensures consistent ignition, minimal vibration, and low maintenance operation over thousands of hours.
Smart Performance & Fuel Efficiency
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SmartCraft Ready: Fully compatible with Mercury’s digital dashboard ecosystem
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ECM555 Protection: Automatically adjusts output during abnormal conditions
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Optimal Fuel Economy: MPI precisely regulates fuel-to-air ratio for maximum efficiency
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Reduced Emissions: Meets global environmental standards for cleaner marine propulsion
Whether cruising long distances or powering through waves, you can expect consistent output and lower fuel costs without sacrificing performance.
Warranty & After-Sales Support
The MerCruiser 383 MAG STROKER INBOARD comes with a 3-Year Limited Factory Warranty, ensuring full coverage against manufacturing defects.
At JB Marine GmbH, we offer:
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Authorized sales & technical guidance
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Professional installation support
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Access to genuine MerCruiser replacement parts
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Worldwide shipping & fast order processing
Our team ensures every customer receives personalized support, from product selection to aftercare, for a seamless marine engine upgrade.
Frequently Asked Questions (FAQs)
What boats are compatible with the MerCruiser 383 MAG STROKER?
It’s designed to replace all standard rotation 5.7L, 6.0L, and 7.4L inboard marine engines, making it the ideal solution for a wide range of recreational and commercial vessels.
Is it suitable for saltwater operation?
Yes. The Vortec cast iron cylinder heads, stainless steel valves, and Dry Joint exhaust system provide superior corrosion protection for saltwater environments.
What type of fuel does it use?
This engine runs efficiently on regular 87 Octane fuel, offering strong performance and cost-effective operation.
Does the price include installation?
The listed price covers the engine unit only. However, JB Marine GmbH offers installation advice and authorized service support through professional marine technicians.
Can I install it myself?
Experienced boat owners may self-install, but professional installation is strongly recommended to ensure alignment accuracy, optimal performance, and full warranty validity.
Order Your MerCruiser 383 MAG STROKER INBOARD 350 HP Today
Transform your boating experience with the most powerful and efficient inboard engine in its class. The MerCruiser 383 MAG STROKER INBOARD (865108R10) delivers the perfect combination of speed, endurance, and fuel economy, engineered to outperform and outlast.
Contact JB Marine GmbH today for pricing, availability, or expert consultation.
Authorized MerCruiser dealer | Professional support | Worldwide delivery










