YANMAR 8LV-370 Marine Diesel Engine – 370 HP
The YANMAR 8LV-370 Marine Diesel Engine 370 HP is a high-performance, electronically controlled V8 diesel engine developed for motor yachts, sport cruisers, recreational powerboats, and compatible marine repowering projects.
Delivering 370 metric HP (272 kW) at 3,800 RPM, the 8LV-370 combines a 4.46-litre V8 configuration with twin turbochargers, intercooling, and advanced Denso common-rail fuel injection.
Designed for compact installation and responsive performance, the YANMAR 8LV-370 provides strong acceleration, efficient diesel operation, and compatibility with modern marine propulsion systems.
Why Choose the YANMAR 8LV-370?
Powerful 370 HP V8 Performance
The 8LV-370 delivers impressive power from a compact 4.46-litre engine, making it suitable for high-performance recreational vessels.
Twin-Turbocharged Diesel Technology
Its twin turbochargers and intercooling system improve air delivery and support responsive acceleration throughout the operating range.
Advanced Common-Rail Injection
The electronically controlled Denso common-rail system precisely manages fuel injection, supporting smooth operation, fuel efficiency, and reduced engine noise.
Compact and Versatile Installation
With an engine-only dry weight of approximately 435 kg, the 8LV-370 offers an attractive power-to-weight ratio for suitable repowering applications.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | YANMAR Marine |
| Engine Model | 8LV-370 |
| Engine Series | YANMAR 8LV |
| Engine Type | Four-stroke marine diesel |
| Configuration | 90° V8 |
| Displacement | 4.460 litres / 272 cubic inches |
| Maximum Crankshaft Power | 370 metric HP / 272 kW |
| Approximate Mechanical Horsepower | 365 bhp |
| Rated Engine Speed | 3,800 RPM |
| Bore × Stroke | 86 × 96 mm |
| Fuel Injection | Denso electronic common-rail direct injection |
| Aspiration | Twin turbocharged and intercooled |
| Engine Management | Electronic |
| Cooling System | Freshwater cooling with seawater heat exchange |
| Starting System | 12V electric, 2.7 kW |
| Alternator | 12V / 180A |
| Lubrication | Enclosed forced lubrication |
| Crankshaft Rotation | Counterclockwise, viewed from flywheel end |
| Dry Weight Without Gearbox | Approximately 435 kg |
| Reference Dimensions (L × W × H) | 1,340 × 880 × 766 mm |
| Emissions Certifications | RCD 2, IMO Tier II, EPA Tier 3 and other applicable approvals |
| Propulsion | Inboard shaft drive; other versions available |
| Applications | Motor yachts, sport cruisers and repowering |
The published 370 metric HP is measured at the crankshaft, not the propeller shaft. Reference dimensions include the KMH50A gearbox and standard mixing elbow; engine-only weight excludes the transmission.
Compatible Marine Gearboxes and Controls
The YANMAR 8LV-370 is compatible with selected marine transmissions for conventional inboard shaft-drive propulsion.
| Transmission | Configuration |
|---|---|
| YANMAR KMH50A | Hydraulic marine gearbox |
| YANMAR KMH52V | V-drive marine transmission |
| ZF220 | Compatible transmission arrangement, subject to installation verification |
For the KMH50A gearbox, documented reduction ratios include 1.67:1, 2.13:1 and 2.43:1.
Compatible Electronic Controls
- YANMAR VC10 electronic vessel control system
- Compatible VC20 control configurations
- YANMAR electronic throttle and shift controls
- YANMAR JC20 joystick controls for supported twin shaft-drive installations
- Compatible YANMAR engine monitoring displays
- NMEA 2000 engine monitoring options
The correct gearbox, reduction ratio, controls, propeller and shaft system must be selected for the vessel.
Applications and Operating Requirements
The YANMAR 8LV-370 is suitable for recreational motor yachts, sport cruisers, performance-oriented powerboats, and compatible repowering projects.
It can also support selected specialist propulsion applications where the engine configuration and applicable approvals are suitable.
Important: YANMAR states that the 8LV-370 is not EPA Commercial certified. Its 370 HP maximum rating should not be represented as a continuous heavy-duty commercial rating.
Price, Package Contents and Warranty
Price: Contact JB Marine GmbH for a quotation.
Depending on the selected configuration, the package may include:
- YANMAR 8LV-370 marine diesel engine
- 12V starter motor and 180A alternator
- Freshwater cooling components
- Exhaust mixing elbow
- Flexible engine mounts
- Electronic engine management equipment
- Selected engine wiring and installation accessories
The marine gearbox, electronic helm controls, instrument display, exhaust installation, and additional propulsion accessories must be specifically confirmed in the quotation.
Warranty: Applicable manufacturer or seller warranty coverage depends on the engine’s condition, production year, market, and supply arrangement. Full terms will be confirmed before purchase.
Frequently Asked Questions
How Much Power Does the YANMAR 8LV-370 Produce?
The engine produces 370 metric HP (272 kW) at 3,800 RPM, measured at the crankshaft.
What Is the Displacement of the YANMAR 8LV-370?
The engine has a displacement of 4.46 litres.
Is the YANMAR 8LV-370 Turbocharged?
Yes. It features twin turbochargers and intercooling.
Does the Engine Use Common-Rail Injection?
Yes. It uses a Denso electronically controlled common-rail direct-injection system.
Which Marine Gearboxes Are Compatible?
Documented options include the YANMAR KMH50A, KMH52V and selected ZF220 transmission arrangements.
What Is the Difference Between the 8LV-370 and 8LV-370Z?
The standard 8LV-370 is offered for conventional inboard shaft-drive installations, while the 8LV-370Z is configured for a compatible YANMAR ZT370 sterndrive.
Buy the YANMAR 8LV-370 from JB Marine GmbH
Looking for a YANMAR 8LV-370 370 HP marine diesel engine for sale?
JB Marine GmbH provides quotations for YANMAR marine diesel engines, compatible marine transmissions, electronic control systems, propulsion accessories, and international shipping.
Contact our sales team with your vessel specifications, preferred gearbox configuration, required quantity, and delivery destination.
Request your YANMAR 8LV-370 quotation today.
Website: https://jbmarinegmbh.de/
