MerCruiser 8.2 L Horizon 375 HP DTS – Premium Inboard Marine Engine

Powerful V-8 Performance with Digital Throttle Precision | JB Marine GmbH

The MerCruiser 8.2 L Horizon 375 HP DTS represents the pinnacle of Mercury Marine engineering, a modern, high-displacement V-8 inboard engine that blends raw power, electronic precision, and marine-grade reliability. Designed for demanding boaters and professional operators alike, this 8.2-litre inboard motor delivers 375 horsepower of smooth, responsive propulsion backed by Digital Throttle & Shift (DTS) technology and Multi-Port Fuel Injection (MPI) for seamless control and efficiency.

Whether you’re repowering your vessel or upgrading to a next-generation marine propulsion system, the MerCruiser 8.2 L Horizon offers the perfect balance of performance, refinement, and reliability.

Unrivalled Power & Performance

With its large-capacity 502 cu in (8.2 L) V-8 block, this powerhouse produces 375 HP @ 4200–4600 RPM, delivering instant throttle response and robust mid-range torque. The DTS system ensures smooth gear engagement and precise digital control, while the MPI fuel system provides clean, efficient combustion.

Performance Highlights

• 375 HP rated output for serious acceleration and cruising power

• 8.2 L V-8 engine block with massive low-end torque

• DTS (Digital Throttle & Shift) for seamless gear changes and instant response

• Multi-Port Fuel Injection (MPI) for optimized fuel delivery and lower emissions

• Water-cooled design ensures stable operating temperatures in all conditions

This configuration delivers the refined smoothness and commanding power required for luxury yachts, performance cruisers, and commercial marine vessels.

Heavy-Duty Construction for Marine Durability

The MerCruiser 8.2 L Horizon is built on a reinforced cast-iron block with forged steel components to handle the extreme loads of marine operation.

Engineering Features

• Forged steel crankshaft for maximum torsional strength

• Hydraulic roller camshaft for quiet, efficient valve operation

• Cast-iron cylinder heads optimized for heat transfer

• Marine-grade fasteners and gaskets for corrosion resistance

• Saltwater-ready design with closed-loop cooling and anti-corrosion coatings

This rugged design ensures that the 8.2 L Horizon performs flawlessly in both freshwater and saltwater environments, providing years of trouble-free operation.

Digital Throttle & Shift (DTS) – Total Control & Smooth Operation

Mercury’s DTS system transforms the boating experience with electronic precision and no mechanical linkage. Shifts are smooth and instantaneous, with no cable drag or lag.

DTS Advantages

• Seamless throttle response and gear engagement

• No mechanical cables – enhanced safety and reliability

• Integrated smart controls and diagnostics

• Ideal for multi-engine setups and modern helm systems

For operators who demand effortless handling and maximum precision, DTS sets the standard for digital marine control.

Fuel Efficiency & MPI Technology

The Multi-Port Fuel Injection (MPI) system delivers exact fuel amounts to each cylinder for maximum efficiency and low emissions. This ensures fast starts, smooth idle, and consistent power delivery throughout the RPM range.

Fuel System Highlights

• Optimized combustion with electronic fuel mapping

• Runs on standard 87-octane unleaded gasoline

• Reduced fuel consumption for longer range

• Lower maintenance costs and cleaner operation

This advanced fuel system makes the MerCruiser 8.2 L Horizon one of the most economical large-displacement inboard engines available.

Technical Specifications – MerCruiser 8.2 L Horizon 375 HP DTS

Ideal for Repower & Upgrades

The MerCruiser 8.2 L Horizon is a premium choice for repowering older boats that need modern technology and efficiency without sacrificing torque or output. Its compact design fits standard Bravo-drive mounting systems for a straightforward installation.

Perfect Applications

• Luxury yachts & cruisers

• High-performance sport boats

• Patrol & commercial craft

• Refit projects requiring modern fuel-injected power

JB Marine GmbH offers installation consultation, repower support, and configuration assistance for every MerCruiser model.

Warranty & After-Sales Support from JB Marine GmbH

Every MerCruiser 8.2 L Horizon 375 HP DTS engine comes with factory backed protection and comprehensive after-sales service.

Warranty Coverage

• 3-Year Limited Factory Warranty from Mercury Marine

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

• Extended support for Bravo drive compatibility and digital system integration

JB Marine After-Sales Service

• Expert technical consultation & diagnostics

• Genuine Mercury spare parts and accessories

• Professional installation guidance

• Warranty registration and maintenance support

With JB Marine GmbH, you receive certified Mercury service, fast parts supply, and trusted technical expertise throughout Europe.

Frequently Asked Questions (FAQ)

 How does the MerCruiser 8.2 L Horizon compare to other inboard motors?
It delivers superior mid-range torque, better fuel efficiency, and digital DTS precision, making it smoother and more responsive than older V-8 inboard models.

 Is it suitable for saltwater use?
Yes – the engine is fully saltwater-ready with corrosion-resistant materials and a closed cooling system for extended longevity.

 What fuel should I use?
Regular 87-octane unleaded gasoline is recommended for optimal performance and economy.

 What maintenance is required?

• Oil & filter change every 100 hours or annually

• Cooling system flush after saltwater use

• Spark plugs & fuel filter replacement every 300 hours

 Where can I buy this engine?
Directly from JB Marine GmbH, an authorized European supplier of Mercury and MerCruiser inboard engines with official warranty and support.

Order Your MerCruiser 8.2 L Horizon 375 HP DTS Today

Power your vessel with the industry’s leading V-8 marine engine. The MerCruiser 8.2 L Horizon 375 HP DTS delivers outstanding performance, efficiency, and digital precision, the ultimate upgrade for discerning boaters.

 Visit JBMarineGmbH.de to request a quote, technical data sheet, or installation consultation.
Experience the difference between ordinary and extraordinary marine power, choose MerCruiser by JB Marine GmbH.