Sydney Diesel Marine

Yanmar Planing powerboats

Yanmar 6LPA-ST(Z)P2

up to 315 hp · Compact six-cylinder power

Official Yanmar 6LPA-STP2 marine diesel engine

The 6LPA-STP2 packs six cylinders into a compact, light block, up to around 315 horsepower to get a planing boat up and moving without the weight of a big six.

Bigger engines, bigger consequences if they’re neglected. We keep them serviced, diagnose them properly, and rebuild or repower when it’s time.

Who it’s for: Powerboat owners running a 6LPA-STP2 or 6LPA-STZP2, sportsfishers, cruisers and fast launches.

Models in this series

6LPA-STP26LPA-STZP2

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 6LPA-ST(Z)P2

  • Scheduled servicing and repairs for the 6LPA.
  • Turbo, cooling, exhaust and fuel-system work.
  • Fault-finding traced to the cause.
  • Full rebuilds and repowers, the deep-end work we’re known for.

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.