Better fuel and air management
A waste-gated, water-cooled turbo really makes things happen when the throttle is put down hard. To reduce embarrassing black smoke at these times, the 6LPA engine has a boost-compensated distributor-type fuel pump, and burn efficiency has been improved as well.

Reduced vibration and noise
Two stage springs in fuel injectors reduce injection noise. Ladder-frame, full block-width crankshaft bearing cap structure reduces
lower block area distortion and fights bearing slap. The belt drive makes for big cuts in timing gear noise, while the 12 balance-weight crankshaft and rubber engine mounts soak up much of the usual diesel vibration.

Extras
The STZ(T)P2 gets you a "go fast package" of a big oil cooler, gallery cooled pistons and big breathing 4-valve head. The engine can be ordered with optional instrument panels B, C, or D. Panel B mounts the usual tachometer and vital sensors for battery, temperature and oil, but in addition has sensors for, i) fuel/water separator water level.
ii) seawater flow at intercooler, and iii) waste-gate valve blockage (boost pressure) Panel C and D offer more sensors again, namely for,
iv) heat exchanger fresh water level. The aim is to go faster on less fuel, while at the same time keeping a far better eye on all those vital engine health functions.

Sterndrive option
Yanmar dealers now offer the following:
. Bravo One-X, Bravo Two-X or Yanmar ZT350 sterndrives.
. Original equipment adapter.
. Yanmar 6LPA-STZ(T)P2 engines as a single package purchase.

Advantages
Combining a Yanmar Diesel with a MerCruiser or the new Yanmar ZT350 sterndrive gives a wide variety of engine and propulsion unit choices to better suit your boating needs. Installation is straightforward, either for a new boat or for re-powering.

[Click image to enlarge]