Description
Discover the MerCruiser 8.2L Horizon 375 HP for exceptional performance, ideal for boating professionals and enthusiasts alike.
MerCruiser 8.2L Horizon 375 HP DTS – High-Performance Marine Engine
Introduction
The MerCruiser 8.2L Horizon 375 HP DTS is a premium, high-output marine engine engineered for boaters seeking unmatched power, smooth handling, and advanced control. With 375 horsepower, this engine is part of MerCruiser’s Horizon series, known for its combination of high-performance propulsion, efficiency, and reliability.
Designed for both recreational and performance-oriented vessels, the 8.2L Horizon delivers impressive torque, responsive acceleration, and effortless cruising, making it ideal for luxury yachts, sportboats, and large cruisers. Its Digital Throttle & Shift (DTS) technology provides precision control, eliminating traditional mechanical linkages for smoother throttle response and seamless gear shifting.
Whether for high-speed offshore cruising, water sports, or leisurely coastal voyages, the 8.2L Horizon 375 HP offers a perfect blend of power, comfort, and reliability.
Product Description
The MerCruiser 8.2L Horizon engine is a V8, 8.2-litre, 4-stroke, naturally aspirated gasoline engine with a high-output marine design. Its large displacement and V8 configuration deliver exceptional torque across a wide RPM range, ensuring rapid acceleration and strong performance under load.
Key to its advanced operation is the Digital Throttle & Shift (DTS) system, which replaces conventional mechanical controls with electronic actuation. This technology enables smoother gear transitions, precise throttle control, and enhanced maneuverability, particularly useful in docking or navigating tight waterways.
The engine features a high-strength aluminum block and cylinder heads, optimized for marine applications with corrosion-resistant coatings. Its closed cooling system uses a freshwater circuit with heat exchanger and raw water pump to maintain consistent operating temperatures and prevent corrosion from direct seawater exposure.
The 8.2L Horizon is designed with service accessibility in mind. Key maintenance points, such as oil and fuel filters, dipsticks, and coolant access, are positioned for easy servicing, reducing downtime and operational costs. Resilient engine mounts and precision-balanced components minimize vibration and noise, enhancing onboard comfort for passengers.
Key Features
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Power Output: 375 HP at rated engine speed, delivering high-performance propulsion for large recreational and sport vessels.
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Digital Throttle & Shift (DTS): Provides smooth throttle response, precise gear shifts, and improved vessel handling.
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High Torque: Exceptional low- and mid-range torque for rapid acceleration and efficient cruising.
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Durable Construction: Aluminum block and cylinder heads with marine-grade corrosion protection.
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Fuel Efficient: Optimized intake and combustion design for improved fuel economy without sacrificing performance.
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Low Noise & Vibration: Balanced V8 design and resilient mounts enhance onboard comfort.
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Marine Cooling System: Closed-loop freshwater system with heat exchanger and raw water pump ensures consistent temperature control.
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Global Support: Backed by MerCruiser’s worldwide service and dealer network for parts and technical assistance.
Technical Specifications
| Category | Specification |
|---|---|
| Engine Model | MerCruiser 8.2L Horizon DTS |
| Engine Type | V8, 4-stroke, naturally aspirated gasoline |
| Displacement | 8.2 litres |
| Aspiration | Naturally aspirated |
| Cooling System | Closed-loop freshwater with heat exchanger |
| Rated Power | 375 HP (280 kW) |
| Max Torque | Approx. 720 Nm at 3,200 RPM |
| Fuel System | Sequential electronic fuel injection |
| Fuel Type | Gasoline |
| Rated Speed | 4,600 RPM |
| Transmission | DTS-compatible marine gearbox |
| Alternator | 12V / 95A |
| Starting System | 12V electric starter |
| Exhaust | Closed-loop water-cooled exhaust manifold |
| Weight | Approx. 450–500 kg |
| Rotation | Clockwise (from flywheel end) |
| Noise & Vibration | Low-noise, low-vibration design with resilient mounts |
| Emission Compliance | Meets EPA Tier 3 and IMO marine emission standards |
| Applications | Luxury yachts, sportboats, cruisers, high-performance recreational vessels |
Performance and Reliability
The 8.2L Horizon 375 HP is engineered to deliver high-performance and dependable operation in a variety of marine conditions. Its V8 architecture provides strong torque for acceleration, towing, and heavy-load performance.
The DTS system enhances control, giving boaters precise throttle and gear operation, which improves fuel efficiency and reduces wear on propulsion components. Its naturally aspirated design ensures smooth power delivery, minimizing engine lag and providing a predictable response under varying loads.
The engine’s corrosion-resistant components, closed freshwater cooling system, and marine-adapted construction contribute to long-term reliability, even in harsh saltwater environments.
Applications
The MerCruiser 8.2L Horizon 375 HP DTS is ideal for:
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Luxury yachts and cruisers seeking high-power propulsion and smooth handling.
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Performance sportboats that require rapid acceleration and precise control.
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Water sports vessels needing strong torque and consistent power delivery.
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High-performance recreational boats where comfort, reliability, and maneuverability are essential.
Its combination of power, precision control, and durability makes it suitable for both casual and professional boaters.
Installation and Maintenance
The engine’s layout allows for flexible installation in larger engine compartments, with easy access to all service points for routine maintenance. Optional accessories, including marine gearboxes, electronic instrument clusters, and propulsion integration kits, allow seamless installation and system integration.
Recommended maintenance intervals include oil and filter changes approximately every 100–150 hours, with more comprehensive inspections at longer intervals. MerCruiser’s global support network ensures easy access to spare parts, service manuals, and professional technical support.
The MerCruiser 8.2L Horizon 375 HP DTS engine delivers high performance, precise control, and exceptional reliability for recreational and high-performance marine vessels. Its V8 architecture, advanced DTS system, and marine-adapted construction ensure smooth acceleration, strong torque, and long-term durability. Ideal for luxury yachts, cruisers, and sportboats, the 8.2L Horizon provides boaters with the power, responsiveness, and comfort needed for a superior marine experience.
