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4JH4AE Marine

Yanmar 4JH4AE · 4JH family: specifications, its industrial/tractor base engine, cross-referenced parts and where to buy them.

🚜 Base engine confirmed

The Yanmar 4JH4AE is a Yanmar marine diesel in the 4JH4AE family. Yanmar designs and sells both marine and industrial diesels; internal service parts for this family are listed in the 4JH4AE 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)

55 hp40.5 kW
2190 ccdisplacement
88×90 mmbore × stroke
4-cylcylinders
2005–2013year range (approx)
NAaspiration

NA mech-injection JH4 block; cont 50mhp@2907 (= 4JH4E ratings)

📋 Full specifications 🚜 Industrial / tractor base 🔧 Aftermarket 45
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 · 46 assemblies

The exploded parts diagrams for the 4JH4AE, grouped by system. Open a figure for its callout part numbers and per-variant quantities.

Belts & pulleys

Fig 37 — V-BELT COVER

Bilge & accessory pumps

Fig 22 — BILGE PUMP(STD)(OPTIONAL)Fig 23 — BILGE PUMP(DX)(OPTIONAL)Fig 46 — (23A)BILGE PUMP(OPTIONAL)

Camshaft & timing gears

Fig 2 — GEAR HOUSINGFig 11 — CAMSHAFT & DRIVING GEAR

Controls

Fig 32 — CABLE SUPPORT

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 — COOLING SEA WATER 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 35 — STARTING MOTORFig 39 — WIRE HARNESS & SENSORFig 40 — INSTRUMENT PANEL(B-TYPE)(OPTIONAL)Fig 41 — INSTRUMENT PANEL(C-TYPE)(OPTIONAL)Fig 44 — (41A)INSTRUMENT PANEL(B-TYPE : KEYLES)(OPTIONAL)Fig 45 — (41B)INSTRUMENT PANEL(C-TYPE : KEYLES)(OPTIONAL)

Fuel injection pump & governor

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

Fuel injectors & nozzles

Fig 27 — FUEL INJECTION VALVE

Fuel lines, tank & filter

Fig 28 — FUEL INJECTION PIPEFig 29 — FUEL PIPE & FUEL STRAINERFig 30 — OIL/WATER SEPARATERFig 31 — FUEL TANK(OPTIONAL)

Gaskets, kits & spare parts

Fig 43 — GASKET SET(OPTIONAL)

Generator (genset)

Fig 36 — GENERATORFig 38 — V-BELT COVER & GENERATOR ATTACHIMENT(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 ROD

Tools & labels

Fig 6 — LABELFig 42 — TOOLS

Transmission & drive

Fig 33 — CLUTCHFig 34 — COUPLING(OPTIONAL)
📚 Manuals & Sources
Specs— none yet
Operator's Manual— none yet
Service / Workshop Manual— none yet
Parts Catalog / List— none yet
More📖 Boat Inboard Engine Manuals Boat Manuals

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Category
Marine
Engine family
4JH
Year range (approx)
2005–2013
Cylinders
4
Rated output
55 hp (40.5 kW)
Bore × stroke
88 × 90 mm
Displacement
2190 cc
Max rpm
3000
Continuous rpm
2907
Aspiration
Naturally aspirated

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