8LV320

The 8LV series is Yanmar's compact V8 marine diesel: 4.46 litres, 90-degree V8, four valves per cylinder, Denso common-rail injection and twin turbochargers, with a 12 V / 180 A alternator as standard. Yanmar announced it for the 2011 Dusseldorf boat show in 320 and 370 mhp ratings, and a 350 mhp rating was added later; all three share one block, 3800 rpm rated speed and a 435 kg dry weight. It was the first engine to use Yanmar's own CAN-bus vessel control system and has a wide operating band from a 550 rpm idle.

Yanmar developed the 8LV together with its ZT370 dual-propeller sterndrive, and the (Z) versions are sold as engine-and-drive packages; inboard versions use Kanzaki KMH50A down-angle or KMH52V V-drive gears, and Yanmar also lists jet applications. Twin sterndrive installations can use the JC10 joystick and twin shaft installations the JC20 joystick, with VC10/VC20 electronic controls.

Yanmar positions the 8LV as a diesel alternative to V8 petrol sterndrive engines for sports cruisers, day boats and tenders, for both new builds and repowering. The 320 mhp version is the lowest of the three ratings.