Yanmar Marine engine

6LPA-STP

Yanmar 6LPA-STP: 315 hp (232 kW) at 3800 rpm, 4.163-litre turbocharged, intercooled six-cylinder marine diesel with four valves per cylinder, the original 6LPA high-output rating.

The 6LPA replaced the 6LP around 2001-2002. It keeps the 4.163-litre, 94 x 100 mm six-cylinder, belt-driven overhead-cam layout with turbocharger, intercooler and boost-compensated distributor-type injection pump. The DTP has two valves per cylinder. The STP adds a four-valve head, gallery-cooled pistons and a larger oil cooler, which Yanmar's leaflet calls a 'go fast package'. Yanmar did not supply a gear. It recommended ZF63A (8-degree angle), ZF63 (parallel) or ZF63IV (V-drive) gears. The -ZP versions were prepared for MerCruiser Bravo sterndrives.

The STP replaced the 300 hp 6LP-STE and was later superseded by the 6LPA-STP2, which has the same 315 hp rating and 408 kg weight. The sterndrive version was the 6LPA-STZP.

Specifications

Power

Power
315 hp
Power (kW)
232 kW
Rated speed
3800 rpm

Engine

Configuration
inline 6
Cylinders
6
Displacement
4.163 L
Aspiration
turbo, intercooled
Weight
408 kg
Fuel
Diesel
Mounting
Inboard

Reviews

No independent reviews on file yet.

Sources

  1. 1. Marine Main Engines for Pleasure Boat (LP), February 2002 — Yanmar Diesel Engine Co.
  2. 2. 6LPA-DTP / 6LPA-STP pleasure-craft leaflet (dealer-hosted copy) — Yanmar
  3. 3. 6LPA-DTP / 6LPA-STP leaflet — Yanmar Marine
  4. 4. 6LP(A)-STE(P) : 300 HP (315 HP) June 1997 - Dec 2006 (parts category) — Oldport Marine

Specifications compiled from manufacturer sources.