Sydney Diesel Marine

Yanmar Performance sail & fast cruisers

Yanmar 4LV Series

150–250 hp · Modern common-rail performance

Official Yanmar 4LV series marine diesel engine

The 4LV is the modern common-rail performance four, from 150 up to 250 horsepower of clean, quiet acceleration, and the engine that replaced the well-loved 4LHA.

It’s a fully electronic engine, so proper diagnostics matter. As a Yanmar dealer we’ve got the SmartAssist software to read them correctly.

Who it’s for: Owners of performance sailboats and fast cruisers running a 4LV150 through 4LV250.

Models in this series

4LV1504LV1704LV1954LV2304LV250

Not sure which you’ve got? Tell us the number off the rocker cover or the plate and we’ll sort it.

What we do

Looking after your 4LV

  • Servicing and repairs for the electronic 4LV range.
  • SmartAssist dealer diagnostics for fault codes and live data.
  • High-pressure fuel injection, turbo and cooling-system work.
  • Rebuilds and repowers when the hours are up.

Phil’s tips

Straight from the workshop

Tether the key to the sea cock

If you close the sea cock for the engine every time you leave the vessel, leave the engine key tethered to the sea cock handle. You physically cannot start the engine without opening the water first.

Let it warm up

Always let your engine warm up before working it. A few minutes at the dock gives the oil time to circulate, and you will get a better service life out of the engine for it.