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3JH3E(EPA) Marine

Yanmar 3JH3E(EPA) · 3JH3E(EPA) family: specifications, its industrial/tractor base engine, cross-referenced parts and where to buy them.

🚜 Base engine confirmed

The Yanmar 3JH3E(EPA) is a Yanmar marine diesel in the 3JH3E family. Yanmar designs and sells both marine and industrial diesels; internal service parts for this family are listed in the 3JH3E parts book and often sell cheaper through industrial/agricultural channels than under marine dealer pricing. — Yanmar OEM parts catalog in-repo (brands/yanmar/data/extracted/catalogs.csv)

40 hp29.4 kW
1496 ccdisplacement
84×90 mmbore × stroke
3-cylcylinders
1999–2005year range (approx)
NAaspiration

EPA trim; same ratings

📋 Full specifications 🚜 Industrial / tractor base 🔧 Aftermarket 58
Cheaper-part coverage · 7/8
🚜 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 · 53 assemblies

The exploded parts diagrams for the 3JH3E(EPA), grouped by system. Open a figure for its callout part numbers and per-variant quantities.

Bilge & accessory pumps

Fig 22 — BILGE PUMP(STD,OPTIONAL)Fig 23 — BILGE PUMP(DX,OPTIONAL)

Camshaft & timing gears

Fig 2 — GEAR HOUSINGFig 11 — CAMSHAFT

Cooling – fresh water

Fig 17 — COOLING FRESH WATER PUMPFig 18 — COOLING FRESH WATER COOLERFig 20 — COOLING FRESH WATER PIPE

Cooling – sea water

Fig 16 — COOLING SEA WATER PUMPFig 19 — COOLING SEA WATER PIPEFig 21 — C.S.W.STRAINER(OPTIONAL)

Crankshaft & flywheel

Fig 3 — FLYWHEEL HOUSINGFig 12 — CRANKSHAFT & FLYWHEEL

Cylinder block

Fig 1 — CYLINDER BLOCK

Cylinder head & valves

Fig 7 — CYLINDER HEADFig 8 — BONNET

Electrical & instruments

Fig 31 — ENGINE STOP DEVICFig 34 — STARTING MOTORFig 38 — WIRE HARNESS & SENSORFig 39 — WIRE HARNESS & SENSOR(EARTH FLFig 39 — WIRE HARNESS & SENSOR(EARTH FLOAT TYPE)Fig 40 — INSTRUMENT PANEL(B-TYPE)Fig 41 — INSTRUMENT PANEL(C-TYPE,PREVIOFig 41 — INSTRUMENT PANEL(C-TYPE,PREVIOUS)Fig 42 — INSTRUMENT PANEL(C-TYPE,NEW)Fig 43 — INSTRUMENT PANEL(B,NEW-TYPE)Fig 44 — INSTRUMENT PANEL(C,NEW-TYPE,PRFig 44 — INSTRUMENT PANEL(C,NEW-TYPE,PREVIOUS)Fig 45 — INSTRUMENT PANEL(C,NEW-TYPE,NEFig 45 — INSTRUMENT PANEL(C,NEW-TYPE,NEW)

Fuel injection pump & governor

Fig 24 — FUEL INJECTION PUMPFig 25 — GOVERNORFig 26 — FUEL FEED PUMP & TIMER

Fuel injectors & nozzles

Fig 27 — FUEL INJECTION VALVE

Fuel lines, tank & filter

Fig 28 — FUEL INJECTION PIPEFig 29 — FUEL PIPE & FUEL STRAINERFig 30 — FUEL TANK(OPTIONAL)

Gaskets, kits & spare parts

Fig 47 — SPARE PART(OPTIONAL)Fig 48 — SPARE PART(EARTH FLOAT TYPE,OPFig 48 — SPARE PART(EARTH FLOAT TYPE,OPTIONAL

Generator (genset)

Fig 35 — GENERATOR(12V-55A,PREVIOUS)Fig 36 — GENERATOR(12V-60A,NEW)Fig 37 — GENERATOR(12V-80A,OPTIONAL)

Intake and Exhaust

Fig 9 — SUCTION MANIFOLDFig 10 — MIXING ELBOW

Lubricating

Fig 5 — LUB.OIL SUMPFig 14 — LUB.OIL SYSTEMFig 15 — LUB.OIL PIPE

Mounting

Fig 4 — MOUNTING FOOT

Pistons, rods & liners

Fig 13 — PISTON & CONNECTING RODFig 33 — CUPRING(OPTIONAL)

Tools & labels

Fig 6 — LABELFig 46 — TOOL

Transmission & drive

Fig 32 — CLUTCH
📚 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
3JH3E(EPA)
Year range (approx)
1999–2005
Cylinders
3
Rated output
40 hp (29.4 kW)
Bore × stroke
84 × 90 mm
Displacement
1496 cc
Max rpm
3800
Continuous rpm
3650
Aspiration
Naturally aspirated