8LV320 320HP

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SKU: web8LV320

YANMAR powerboat engines deliver outstanding power, speed, efficiency, and reliability. Our engines have proven to be the ideal solution for multiple applications, commercial and recreational, given a customizable options range - available for shaft, stern, and jet drives, with SOLAS and semi 2-pole option, high power primary and secondary alternators, purpose-built plug & play interconnectivity to any NMEA or J1939 device, and more. YANMAR engines deliver 5x Best in Class product features with the added benefit of the best global support network in the marine industry.

For ski boats to fast sports craft to luxury cruisers – new build or repowering – the 8LV is at the forefront of today’s propulsion technology, providing the kind of high end performance associated with V8 gasoline engines, but with all of the solid, long-life and cost-effective benefits of diesel. This V8 can be matched perfectly with Yanmar’s latest twin-propeller sterndrive, the ZT370, or to a KMH50 inboard transmission. Yanmar remains dedicated to achieving maximum performance from minimum weight and the 8LV proves the point: another big displacement engine, weighing in dry at a mere 435 kilograms. The 8LV provides boaters with the best-in-class power band. It idles at 550 rpm, capable of crawling speed in the marina, aided further by the hydraulic clutch of the ZT370 or KMH50 drive systems. Maximum engine speed is a big 3,800 rpm – well ahead of other engines in this segment. You can enjoy high power, high torque. Low noise, low vibration. You can go much further on a tank of fuel. There is the advantage of a 12 volt, 180 amp alternator to charge all your onboard electrics. The 8LV uses Yanmar’s new CAN-bus control system, the Yanmar VCS, so you don’t have to rely on anyone else. Then there is easy installation, simple servicing, and all that worldwide Yanmar support, wherever, whenever.

Rated output235 kW / 320 mhp
Rated Speed3800 rpm
Displacement4.460 L [272.24 cu in]
Bore x Stroke86 mm x 96 mm
Type4-stroke, water-cooled diesel engine
Emission complianceEU: RCD 2, EMC. US: EPA Tier 3, IMO

For the latest manuals, product guides, spec sheets and more, please visit Yanmar Marine's product page.



Designed, built and proven by Yanmar, the all-new ZT370 sterndrive is the perfect match for Yanmar’s LV and LP marine engine series. The ZT370: unsurpassed for new installations and ideal for repowering.

The propulsion system is the heartbeat of your boat. It needs all of those renowned Yanmar qualities of performance, reliability, durability and respect for nature. Now, high technology engines and leading edge drives are available in an all-Yanmar power package, brought together for the very best in boating enjoyment.

The quiet, hydrodynamic ZT370 has a new type of hydraulic clutch for exceptional smoothness, precision forged gears for extra-long life, two counter-rotating propellers for superb acceleration and tight-hold tracking, and large rudder dimensions for superior handling on single and twin engine boats. All with low noise, corrosion protection and minimised maintenance.


  • New engines or repowering
  • Single or dual installation
  • Also available with integrated electromagnetic shift
  • In combination with Yanmar's all new VCS electronic system, you can use the newly developed joystick for easy maneuvering

Engine type [mhp]150 - 370
Reduction Ratio (fwd/asn)1.65/1.65 1.78/1.78
Reduction gear systemHydraulic actuated multi-friction disc clutch
Dry weight [kg - lbs]112 kg [247 lbs]


Smart, multi-purpose instrument featuring a compact full color display, modern glass styling, with the ability to read and display YANMAR engine alarm and diagnostic troubleshooting codes. View engine speed, engine load, oil pressure, coolant temperature, wind, speed, depth, AIS data and more at a glance.


The YANMAR JC10 joystick system is suitable for 30-45 ft. motor yachts, express cruisers and tenders equipped with twin YANMAR Marine sterndrive common rail engines & YANMAR ZT370 Sterndrive

How it works
Simply press the joystick gently in the desired direction of movement and the JC10 will automatically adjust the direction of the drives and speed of the two engines to maneuver the bow precisely where needed.


The YANMAR JC20 inboard joystick system is suitable for every motorboat, powerboat, and catamaran equipped with twin YANMAR 6LY Series & 8LV Series common rail engines.

How it works
Simply press the joystick gently in the desired direction of movement and the JC20 will automatically engage the bow thruster and adjust the speed of the two shaft engines to maneuver the bow precisely where needed.

The VC20 is YANMAR’s 2nd generation vessel control system that controls all YANMAR electronically managed engines. Featuring simplified electrical management, a high-quality appearance, and significant functional improvements, the next generation YANMAR VC20 Vessel Control System integrates with YANMAR’s complete line up of common rail engine series, transmissions, controls, and displays.

The VC20 is a J1939 based CAN bus system that has a dedicated network to each engine and comes standard with an emergency back-up panel, ensuring the highest reliability. With NMEA connections built in, the VC20 can connect easily to multiple other vessel accessories or systems.

The system was completely developed by YANMAR to meet the company’s high standards of quality and dependability. The VC20 controls all YANMAR engine and transmission function and shows engine alarms and diagnostic codes in the display.

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