YANMAR 8LV-320Z Marine Diesel Engine – 320 HP | JB Marine GmbH Germany

Experience ultimate marine performance and efficiency with the YANMAR 8LV-320Z, the V8 diesel engine built for boaters who demand power, precision, and endurance.
Available from JB Marine GmbH, Germany’s trusted supplier of high-performance YANMAR marine engines, the 8LV-320Z delivers gasoline-like acceleration with the fuel economy and reliability that only diesel technology can provide.

Engineered for Power, Precision, and Durability

The YANMAR 8LV-320Z Marine Diesel Engine (320 HP) represents the pinnacle of marine propulsion engineering.
Designed for sport boats, ski boats, luxury cruisers, and performance craft, this V8 diesel powerhouse combines high torque output, smooth operation, and outstanding efficiency in a lightweight package.

Built with marine-grade materials and cutting-edge propulsion technology, the 8LV-320Z offers exceptional power-to-weight performance, ensuring quick acceleration, reduced fuel consumption, and smooth cruising even under heavy loads.

Power & Performance Redefined

The YANMAR 8LV-320Z delivers an impressive 235 kW (320 mhp) at 3800 rpm, offering unmatched torque and throttle responsiveness.
With its ultra-low idle speed of 550 rpm, operators enjoy precise control during docking and low-speed maneuvers, while the hydraulic clutch system in both the ZT370 sterndrive and KMH50 inboard transmission ensures smooth and effortless gear transitions.

Performance Highlights:

• V8 diesel power with superior acceleration

• 550–3800 rpm range for full power flexibility

• Hydraulic clutch system for smooth shifting

• Lightweight 435 kg (dry) construction

• Seamless integration with YANMAR ZT370 or KMH50 systems

Every detail of the 8LV-320Z is designed to deliver reliability, control, and exhilarating performance — ideal for demanding marine professionals and enthusiasts alike.

Compact, Lightweight & Highly Efficient Design

At only 435 kg, the YANMAR 8LV-320Z sets new standards in the marine diesel segment for power-to-weight ratio.
Its compact design makes installation straightforward for both new builds and repowering projects, without compromising performance or onboard space.

Core Advantages:

• Compact V8 configuration for tight engine compartments

• Optimized cooling system for consistent temperature management

• Efficient power delivery with reduced vibration

• Ideal for high-speed marine craft requiring quick response

This balance of lightness and strength results in improved handling, greater fuel economy, and lower operational costs over time.

Advanced Propulsion Technology & Drive Compatibility

The 8LV-320Z is designed for seamless integration with YANMAR’s latest drive systems:

• ZT370 twin-propeller sterndrive, engineered for smooth acceleration and top-end efficiency.

• KMH50 inboard transmission, offering robust performance for conventional shaft-driven vessels.

Both options ensure precise handling, low vibration, and excellent torque transfer, making the engine ideal for a wide range of performance-oriented vessels.

Smooth Operation & Quiet Comfort

With YANMAR’s advanced engineering, the 8LV-320Z delivers minimal noise and vibration, providing a comfortable onboard experience.
Its balanced V8 layout, hydraulic clutch, and precision fuel mapping ensure a remarkably smooth ride, even at high cruising speeds.

Comfort Features:

• Low idle for quiet marina operation

• Reduced vibration via balanced crankshaft design

• Noise-dampened combustion for comfort at all speeds

This makes it an ideal choice for luxury yachts and sport boats, where performance and refinement are equally essential.

Fuel Efficiency & Environmental Compliance

Built to perform efficiently and responsibly, the YANMAR 8LV-320Z features common-rail direct fuel injection and turbocharged intercooling, resulting in optimal fuel usage and cleaner emissions.

Environmental Compliance:

• EU RCD 2, EMC certified

• EPA Tier 3 compliant

• IMO emission standards approved

• Compatible with Ultra-Low Sulfur Diesel (ULSD)

With up to 20% lower fuel consumption than comparable gasoline engines, the 8LV-320Z offers an eco-conscious solution that extends range while reducing running costs.

Advanced Electronic Control – YANMAR VCS (CAN bus System)

The YANMAR Vessel Control System (VCS) simplifies engine management and enhances performance monitoring through CAN bus integration.

Key Features:

• Real-time digital diagnostics

• Simplified maintenance and installation

• Full integration with Helm and navigation displays

• Enhanced operational safety and control

At JB Marine GmbH, our team provides installation, calibration, and ongoing support for all YANMAR VCS-equipped engines, ensuring seamless operation and compliance with YANMAR standards.

YANMAR 8LV-320Z Technical Specifications

 5-Year Manufacturer Warranty & Global Support

When you purchase your YANMAR 8LV-320Z through JB Marine GmbH, you benefit from factory-backed warranty coverage and worldwide service access.

Warranty Includes:

• 5-Year limited manufacturer warranty

• Coverage for manufacturing defects and component failures

• Global YANMAR service network access

• OEM parts and accessories availability

• 24/7 technical support for maintenance and diagnostics

JB Marine GmbH ensures every YANMAR marine engine is installed, tested, and supported according to YANMAR’s international quality standards.

Frequently Asked Questions (FAQs)

What type of boats is the 8LV-320Z best suited for?

This engine is ideal for sport boats, ski boats, luxury cruisers, and performance yachts that require exceptional acceleration, torque, and efficiency.

How does it compare to Volvo Penta marine engines?

The YANMAR 8LV-320Z offers higher torque, improved fuel economy, and reduced maintenance costs while being lighter and more compact, simplifying installation and servicing.

Is it compatible with different propulsion systems?

Yes — it can be paired with both YANMAR ZT370 twin-prop sterndrive and KMH50 inboard transmission, providing flexibility for various hull designs.

What fuel does it use?

The engine operates on Ultra-Low Sulfur Diesel (ULSD), compliant with modern emission standards and suitable for global marine applications.

Does JB Marine GmbH provide installation support?

Yes, we provide professional installation, calibration, and after-sales service across Germany and Europe, with genuine YANMAR parts and certified technicians.

Why Choose JB Marine GmbH?

• Authorized YANMAR Dealer in Germany

• Comprehensive warranty and after-sales support

• OEM parts and accessories for all YANMAR marine engines

• Expert technical consultation and installation services

• Fast, insured global shipping and repower support

With extensive experience in marine engineering, JB Marine GmbH is your trusted partner for YANMAR diesel marine engines, offering reliability, performance, and peace of mind.

Order Your YANMAR 8LV-320Z Today

Looking to upgrade your vessel with the YANMAR 8LV-320Z Marine Diesel Engine (320 HP)?
Contact JB Marine GmbH today for competitive pricing, expert advice, and worldwide shipping options.