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6LPA-STP2 Marine

Yanmar 6LPA-STP2 · 6LPA-STP family: specifications, its industrial/tractor base engine, cross-referenced parts and where to buy them.

Marinized Toyota 1HD-FTE (24-valve, electronic)

This 6LPA is the marine version of the Toyota 1HD-FTE — the electronic 24-valve 4.2 L Land Cruiser diesel. Internal/wear parts cross to Toyota 1HD-FTE/1HD-FT numbers; the marinized externals are Yanmar-only.

🚜 Base engine confirmed

The Yanmar 6LPA-STP2 is a marinized Toyota 1HD-FTE 4.2 L inline-6 diesel (electronic 24-valve Land Cruiser block). Internal/wear parts cross to Toyota 1HD-FTE/1HD-FT part numbers; marinized externals are Yanmar-only. This site's 6LP marine parts book covers the Yanmar-side BOM; no Toyota donor BOM is loaded yet. source

315 hp231.7 kW
4164 ccdisplacement
94×100 mmbore × stroke
6-cylcylinders
from 2007year range (approx)
Turbo + ICaspiration

2nd-gen 6LPA; Toyota 1HD-FTE; max 315mhp@3800 / cont 286mhp@3682

📋 Full specifications 16 🚜 Industrial / tractor base 🔧 Aftermarket 46
Cheaper-part coverage · 4/8
🚜 Base engine ✓🌀 Impeller ✓💧 Raw-water pump🛢️ Oil filter⛽ Fuel filter🌡️ Thermostat➰ Belt ✓⚓ Anode ✓

A ✓ means at least one cheaper channel — aftermarket, the tractor/industrial base engine, or a standard component — exists for this engine in that category.

Parts by section · 65 assemblies

The exploded parts diagrams for the 6LPA-STP2, grouped by system. Open a figure for its callout part numbers and per-variant quantities.

Belts & pulleys

Fig 51 — BELT COVER

Bilge & accessory pumps

Fig 35 — BILGE PUMP(STD,OPTIONAL)Fig 36 — BILGE PUMP(DX,OPTIONAL)

Camshaft & timing gears

Fig 2 — GEAR HOUSINGFig 17 — CAMSHAFT

Controls

Fig 12 — BOOST CONTROL

Cooling – fresh water

Fig 28 — COOLING FRESH WATER PUMPFig 29 — THERMOSTATFig 30 — COOLER(FRESH WATER)Fig 33 — COOLING FRESH WATER PIPEFig 34 — COOLING FRESH WATER WATER PIPE(TURBINE)

Cooling – sea water

Fig 27 — COOLING SEA WATER PUMPFig 31 — COOLING SEA WATER PIPE(6LPA-STP2)Fig 32 — COOLING SEA WATER PIPE(6LPA-STZP2/3)Fig 60 — COOLING SEA WATER PIPE(ZT SPEC)

Crankshaft & flywheel

Fig 3 — FLYWHEEL HOUSINGFig 18 — CRANKSHAFT

Cylinder block

Fig 1 — CYLINDER BLOCK

Cylinder head & valves

Fig 15 — CYLINDER HEAD

Electrical & instruments

Fig 43 — GLOW PLUGFig 49 — STARTING MOTORFig 52 — INSTRUMENT PANEL(B-TYPE,OPTIONAL)Fig 53 — INSTRUMENT PANEL(C-TYPE,OPTIONAL)Fig 54 — INSTRUMENT PANEL(D-TYPE)(OPTIONAL)Fig 55 — WIRE HARNESS & SENSORFig 56 — SENSOR MOUNTFig 64 — TURNOVER SWITCH(SOLAS)(OPTIONAL)(TO E/#2976)Fig 65 — TURNOVER SWITCH(SOLAS)(OPTIONAL)(FROM E/#2977)

Fuel injection pump & governor

Fig 37 — FUEL INJECTION PUMP

Fuel injectors & nozzles

Fig 38 — FUEL INJECTION VALVE

Fuel lines, tank & filter

Fig 39 — FUEL INJECTION PIPEFig 40 — FUEL PIPEFig 41 — FUEL STRAINERFig 42 — FUEL COOLER

Gaskets, kits & spare parts

Fig 58 — SPARE PART(OPTINAL)

Generator (genset)

Fig 50 — GENERATOR

Intake and Exhaust

Fig 8 — TURBINEFig 9 — EXHAUST BENDFig 10 — AIR COOLERFig 11 — AIR DUCTFig 13 — EXHAUST MANIFOLDFig 14 — SUCTION MANIFOLDFig 25 — LUB. OIL PIPE(TURBINE)Fig 26 — OIL SUCTION/DRAIN PUMPFig 59 — EXHAUST BEND(ZT SPEC)Fig 62 — EXHAUST MIXING DEVICE & FLEXIBLE RUBBER(KMH50V SPEC.)

Lubricating

Fig 5 — LUB. OIL SUMPFig 7 — BREATHERFig 21 — LUB. OIL COOLER 1Fig 22 — LUB. OIL COOLER 2Fig 23 — LUB. OIL COOLER COVERFig 24 — LUB. OIL PIPEFig 63 — BREATHER(SOLAS:OPTIONAL)

Mounting

Fig 4 — MOUNTING FOOTFig 16 — ENGINE LIFTERFig 19 — DAMPERFig 44 — BRACKET(CABLE)

Pistons, rods & liners

Fig 20 — PISTON & CONNECTING RODFig 45 — POWER STEERING PUMPFig 46 — POWER STEERING COOLER & TANK

Tools & labels

Fig 6 — LABELFig 57 — TOOL(OPTIONAL)

Transmission & drive

Fig 47 — ATF PIPEFig 48 — CLUTCH & DRIVE ATTACHMENTFig 61 — COUPLING(ZT SPEC)
📚 Manuals & Sources
Specs— none yet
Operator's Manual— none yet
Service / Workshop Manual— none yet
Parts Catalog / List— none yet
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Category
Marine
Engine family
6LPA-STP
Year range (approx)
from 2007
Cylinders
6
Rated output
315 hp (231.7 kW)
Bore × stroke
94 × 100 mm
Displacement
4164 cc
Max rpm
3800
Continuous rpm
3682
Aspiration
Turbocharged + intercooled