RPM drops under load, then nothing. Yanmar 4LHA fuel starvation kills cruises: air intrusion, clogged filters, a lift pump that quit. Find every part number before you get stranded.
Need the exact OEM part number for your Yanmar 4LHA-DTE? This 96-page parts catalog (OEM #0CR10-G47802) covers the complete 1998-2008 4LHA diesel family: STE, STZE, DTE, DTZE, HTE, HTZE, and all (Z)P variants. Inside: exploded-view diagrams from the cylinder block and gear housing through the fuel injection pump, governor, and instrument panel assemblies. You get variant-specific turbocharger sections for each ST, DT, and HT build, plus full parts lists with OEM numbers spanning the lubrication, cooling, fuel, electrical, steering, and clutch systems. Confirm your variant before ordering: the STE(P) rates 140 kW at 3100 rpm continuous; the DTE(P) comes in at 116 kW at the same speed. Wrong part ordered is a week lost. Bookmarked by assembly and searchable by keyword, open it on any device and find the exact part number before you ever pick up the phone.
What's Inside This Yanmar 4LHA-STE / DTE / HTE Series Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Preface. | 2-3 | Parts Catalog Scope, Standard Finish Color, Technical Servicing Data, Essential Points, Genuine Parts Usage |
| Content. | 4-5 | Cylinder Block, Gear Housing, Flywheel Housing, Mounting Foot (4LHA-ST/DT(Z)E(P)), Mounting Foot (4LHA-HT(Z)E(P)), Lub.Oil Sump |
| Cylinder Block | 6-7 | Cylinder Block Assy, Camshaft Bush, Oil Gallery Setscrew, Cylinder Liner, Retainer, Round Gasket, Main Metal, Cylinder HEADT1 Gasket |
| Gear Housing | 8 | Gear Housing Cover, Blind Cover, Cover, Gasket, Oil Seal, Seal Waser, Cover Packing |
| Flywheel Housing | 9 | Flywheel W/ Gear, Flywheel Assy R, Ring Gear, Flywheel N Housing, Flywheel S Housing, Flywheel Cover Cap, Mounting Flange |
| Mounting Foot(4Lha-St/Dt(Z)E(P)) | 10 | Engine Bracket, Absorber, Engine, R R Bracket, Rubber Mount |
| Mounting Foot(4Lha-Ht(Z)E(P)) | 11 | Engine Bracket, Rubber Mount, Absorber, Bolt |
| Lub.Oil Sump | 12 | Lub. Oil Sump Assy, Oilpan Intermediate, Elbow, Cap, Dipstick Support, Dipstick Pipe, Dipstick, Dipstick N |
| Oil Seal Housing | 13 | Oil Seal Case Assy, Seal HTC95, Bolt |
| Label | 14 | Lifter Label, Danger Label, Seat Label, Loose Parts Label, Yanmer Label, Label S, Bso W Label |
| Cylinder Head(4Lha-St/Dt(Z)E(P)) | 15-16 | Cylinder Head Assy, Cyl Head Assy, Intake Insert, Valve Seat, Valve Guide, Suction Valve, Exhaust Valve, Valve Spring |
| Cylinder Head(4Lha-Ht(Z)E(P)) | 17 | Cylinder Head Assy, Valve Seat, Valve Guide, Suction Valve, Exhaust Valve, Valve Spring, Valve Stem Seal, Spring Retainer |
| Bonnet && Breather | 18 | Filler Cover, Head Bonnet Assy, Bonnet Gasket, Breazer Cover, Cover, Net, Gasket, Baffle Plate |
| Suction Manifold | 19 | Gasket, Gasket N, Intake Manifold, Round Gasket, Joint, Joint N, Pipe Joint, Round W Gasket |
| Exhaust Manifold | 20-21 | Exhaust N Manifold, Gasket Cooler, Gasket N, Filler Assy, Radiator Cap, Gasket, Round Gasket |
| Camshaft && Driving Gear | 22 | Camshft Assy, Camshaft Assy, Thrust Bearing, Camshaft Gear, Tappet, Push Rod, Idle Gear Shaft, Idle Gear Assy |
| Turbocharger(4Lha-St(Z)E(P)) | 23 | Turbocharger, Turbocharger N, Turbo Sirencer, Filter R, Packing |
| Turbocharger(4Lha-Dt(Z)E(P)) | 24 | Turbo-Charger, Turbo Sirencer, Filter, Packing |
| Turbocharger(4Lha-Ht(Z)E(P)) | 25 | Turbocharger, Turbocharger Bracket, Turbo Sirencer, Filter, Packing |
| Mixing Elbow && Exhaust Bend | 26-27 | Mixing Elbow, Mixing Elbow Z, Cw Joint, Elbow R Bend, Cw Z Joint, Turbocharger Gasket, V-Clamp, Exh Bend |
| Air Cooler | 28 | Intercooler Assy, Cylinder, Water Box, Tubestack, Anti-Corrosive Zinc, Label W, Cock, Cock Assy N |
| Crankshaft | 29 | Crankshaft Assy, Crankshaft Gear, Crankshaft V-Pulley, V-Pulley A- |
| Piston && Connecting Rod | 30 | Piston W/ Rings, Piston W/ Rings N, Ring Set, Connecting Rod Assy, Crank-Pin Metal |
| Lub.Oil Cooler | 31 | Lo Cooler Bracket, Lub. Oil Cooler, Anti-Corrosive Zinc, Gasket, Gasket F, Cover B Cmp, Rubber Seat, Cock |
| Lub.Oil Cooler Housing | 32 | Oil Cooler Housing, Oil Press Valve, Spring, Retainer, Round Gasket, Gasket, Bend, Bend Gasket |
| Lub.Oil System | 33 | Lub. Oil Pump Assy, Lub. Oil Pump Gasket, Oil Sump Pump, Pipe, Lub. Oil Strainer, Oil Inlet Pipe, Lo Filtr Cmp Z Bracket, Lo Filter W Bracket |
| Lub.Oil Pipe | 34 | Lub. Oil Pipe, Lub. Oil N Pipe, Retainer 6X, Gasket, Pipe Retainer a, Pipe Retainer B, Lub. Oil Cap |
| Lub.Oil Pipe(Turbocharger) | 35 | Lub. Oil Pipe, Lub. Oil Hose, Round Gasket, Bolt |
| Lub.Oil Pipe(Cooler) | 36 | Lo Cooler Out Pipe, Lo Cooler in Pipe, Lot Joint, Pipe Retainer a, Pipe Retainer C |
| C.S.W.Pump(4Lha-St/Dt(Z)E(P)) | 37 | Sea Water Pump, Spacer, Cover, Cooling Water Impeller, Impeller N, Shaft, Plate, Bearing Retainer |
| C.S.W.Pump(4Lha-Ht(Z)E(P)) | 38 | Cooling Water Puwp Assy, Pump Body, Joint, Cooling Water Impeller, Impeller Shaft, Cover, Plate, Mechanical Seal |
| Cooling Fresh Water Pump | 39 | Cooling Water Pump Assy, Cfw-Pump Cmp R, Cooling Water Pump Gasket, Cooling Water Pump R Gasket, Outlet Flange, V-Pulley, V-Belt A46, Thermostat Cover |
| C.F.W.Cooler(4Lha-St/Dt(Z)E(P) | 40 | Heat Exchanger, Anti-Corrosive Zinc, Cover B Cmp, Gasket, Gasket F, Rubber Seat, Cwf Cooler Bracket, Cwf Cooler S Bracket |
| C.F.W.Cooler(4Lha-Ht(Z)E(P)) | 41 | Heat Exchanger Assy, Heat Exchager Assy, Cooler Core Assy, Cover a, Cover B, Gasket, Filler Assy, Radiator Cap |
| C.S.W.Pipe(4Lha-Ste/Dte(P)) | 42 | Out Hose, Sea Water Hose, Gear in Hose, Gear Out Hose, Joint, Cooling Water Pipe, Sea Water Cock Assy |
| C.S.W.Pipe(4Lha-Stze/Dtze(P)) | 43 | Out Hose, Sea Water Hose, Ps Cooler in Hose, Ps Cooler in R Hose, Ps Cooler Out Hose, Ps Cooler R Hose, Joint, Sea Water Cock Assy |
| C.S.W.Pipe(4Lha-Ht(Z)E(P)) | 44 | Out Hose, Ps Cooler Hose, Joint, Sea Water Cock Assy, Hose, Drive Out Hose, Drive Tube, Bend |
| C.F.W.Pipe(4Lha-St/Dt(Z)E(P)) | 45 | Peacock, Cock R1/ Assy N, Pipe, Pipe Z, Pipe W, Pipe 7X, Fresh Water Bend, Cwf Bend Gasket |
| C.F.W.Pipe(4Lha-Ht(Z)E(P)) | 46 | Joint, Pipe, Cock R1/ Assy, Retainer, Pipe 7X, T/c in Hose, C.f.w.pipe Protector |
| C.S.W.Strainer(Optional) | 47 | - |
| Bilge Pump(Std,Optional) | 48 | Pump .Bilge, Motor Assy Pump, Controller, Inpeller |
| Bilge Pump(Dx,Optional) | 49 | Pump .Bilge, Motor Assy Pump, Controller, Inpeller |
| Fuel Injection Pump(4Lha-St/Dt(Z)E(P)) | 50-51 | Fuel Injection Pump Assy, Bearing, Roller Bearing, Bearing Support, Cover, Lower Cover Gasket, Plunger W/ Barrel, Deflector |
| Fuel Injection Pump(4Lha-Ht(Z)E(P)) | 52 | Retainer, Fi-P Assy, Bracket, Gear, Over Flow Valve, Fuel Cut Solenoid |
| Governor | 53-55 | Label, Governor Case, Link, Spring, Lever Assy, Governor Spring Lever, Bush, Governor Lever Shaft |
| Fuel Feed Pump | 56 | Fuel Feed Pump Assy, Feed P Housing Assy, Oil Seal, Gasket, Piston, Piston Spring, Valve, Adapter |
| Timer | 57 | Timer Assy, Timer Assy N, Fuel Injection Pump Mount, Retainer |
| Fuel Injection Valve | 58 | Fuel Injection Valve Assy, Nozzle Assy, Spring, Nozzle Spring Seat, Stop Plate, Nozzle Holder Body, Gasket, Joint Cmp |
| Fuel Injection Pipe | 59 | Steady Rest Bracket, Steady Rest N Bracket, Retainer, F.o.injection Pipe Cmp |
| Fuel Pipe(4Lha-St/Dt(Z)E(P)) | 60-61 | Fuel Pipe, Fuel N Pipe, Fuel Oil N Pipe, Pipe .3X13.0X500, Fuel Return R Pipe, Fuel Oil Pipe, Fuel Pipe Reotector, Protector |
| Fuel Pipe(4Lha-Ht(Z)E(P)) | 62 | Pipe Joint, Fuel Pipe, Fuel S Pipe, Pipe N Joint, Fop Cmp |
| Fuel Strainer(4Lha-St/Dt(Z)E(P)) | 63 | Strainer Assy, Gasket, Spring, Strainer Body, Fuel Oil Element, Fo Filter Bracket, Rubber |
| Fuel Strainer(4Lha-Ht(Z)E(P)) | 64 | Rubber, Water Sepatator Assy, F.o. Filter Assy S, Fuel Strainer Body, Separator Filter, Sender, Fo Filter W Case Kit, Fuel Filter W Bracket |
| Oil/Water Separater(Optional) | 65 | Separator, Fuel Oil Element, Bracket, Pipe Assy, Round Gasket |
| Engine Stop Device(4Lha-St/Dt(Z)E(P)) | 66 | Solenoid Bracket, Engine Stop Solenoid, Stop Wire, Retainer, Joint, Cancel W Wire, Cancel Wire W Bracket, Cancel Wire Z Bracket |
| Engine Stop Device(4Lha-Ht(Z)E(P)) | 67 | Cable Bracket, Joint Retainer, Bracket, Mt- Remo-Con, Mount, Remocon Head |
| Power Steering Pump | 68 | Ps-P V-Pulley, Belt Adjuster, Generator Coller, U-Nut M12, V Belt |
| Power Steering Cooler && Tank | 69 | Cooler Atf-T, P/s Cooler Tube, Pipe W Joint, Oil Tank Bracket, Oil Tank N Bracket, Hydraulic Reservior Assy, Fuel Oil Cooler, Fuel Oil F Cooler |
| Atf Pipe | 70 | Pump-Drive Atf-T, Cooler-Tank Atf-T, Tank-Pump Atf-T, Brass Coupling, Retainer, Band |
| Clutch && Drive Attachment | 71 | Coupling Cmp, Mounting Foot, Gear Out Hose, Rubber R/r Out Pipe, Gear in Hose, Rubber R/r in Pipe, Joint, Coupling |
| Starting Motor | 72 | Starting Motor N, Armature Assy, Pinion Stopper Kit, Field Coil Assy, Brush, Rear Cover Assy, Holder |
| Generator | 73 | Belt Adjuster, Spacer, Generator Bracket |
| Generator(Optional) | 74 | Alternater, Regulator Assy, Wire, Pulley Nut Assy, Spacer W, Support a W |
| Wire Harness && Sensor | 75-76 | Wireharness, Wire N Harness, Wireharness W, Retainer, Terminal Cover, Protector, Oil Pressure Switch, Oil Pressure N Sender |
| Sensor Mount | 77 | Sender Lot Cmp, Sender Bracket, Cushion, Round Gasket, Boost Sendor Pipe, Pipe Joint, Sender N Bracket, Pressure Sensor |
| Heater Plug(Optional) | 78 | Heater Relay, Controler, Controler N, Bracket a, Bracket B, Heater Harness, Cushion, Thermo Switch |
| Instrument Panel(B-Type,Option | 79 | Imstrument Panel, Imstrument Panel N, Tacho./hour Meter, Wire, Bulb, Box, Box N, Wire W/ Bulb |
| Instrument Panel(C-Type,Option | 80-81 | Imstrument Panel, Imstrument Panel N, Imstrument Panel S, Tacho./hour Meter, Wire, Bulb, Meter, Meter S |
| Instrument Panel(D-Type,Option | 82-83 | Instrument Panel, Imstrument Panel N, Instrument Panel S, Tacho./hour Meter, Wire, Bulb, Meter, Meter S |
| Tool | 84 | Tool Assy, Plier, Tool Box, Wrench 10X13, Bar Wrench |
| Gasket Set(Optional) | 85 | Gasket Set, Cylinder HEADT1 Gasket, Packing, Lub. Oil Pump Gasket, Liquid Gasket, Gasket Cooler |
| Remote Lub.Oil Strainer(Optional) | 86 | Lub. Oil Filter Adapter a, Lub. Oil Filter Adapter B, Adapter B W Bracket, Filter in Lo-T, Filter Out Lo-T, Lot Joint, Band |
| Kit,Fireproof Fuel Strainer(4Lha-Ht(Z)E(P)) | 87 | Fuel Filter W Bracket, Fo Filter W Case Kit, Fuel W Pipe, Harness Wire Spare W |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Pipe dimension | 7X 300 | p. 45 |
| Starting system | Erectric starting 12V-2.5kw | p. 3 |
| Standard finish color | Metallic ecole silver | p. 3 |
| 4LHA-STE(P), 4LHA-STZE(P) | ||
| Continuous rated output (KW/min-1) | 140/3100 KW/min-1 | p. 3 |
| Continuous rated output (PS/rpm) | 190/3100 PS/rpm | p. 3 |
| 4LHA-DTE(P), 4LHA-DTZE(P) | ||
| Continuous rated output (KW/min-1) | 116/3100 KW/min-1 | p. 3 |
| Continuous rated output (PS/rpm) | 158/3100 PS/rpm | p. 3 |
| 4LHA-HTE(P), 4LHA-HTZE(P) | ||
| Continuous rated output (KW/min-1) | 91.2/3100 KW/min-1 | p. 3 |
| Continuous rated output (PS/rpm) | 124/3100 PS/rpm | p. 3 |
Yanmar 4LHA-STE / DTE / HTE Series Common Problems This Manual Covers
Yanmar 4LHA-STE lift pump and filter part numbers needed for loss of RPM under load. p. 56
Check the Fuel Feed Pump exploded view on page 56 to find the exact pump assembly and piston. Verify the required 7X 300 pipe dimensions on page 45. Cross-reference your specific serial number in the index to order the correct components for your fuel system.
Manual Section: Fuel Feed PumpCan't locate the correct starter motor assembly and relay part numbers for slow cranking or no-start condition. p. 72
Inspect the Starting Motor breakdown on page 72 to identify the correct 12V-2.5kw electric starting system components. Match the replacement motor assembly to your engine configuration. Order the exact mounting bolts and brackets shown in the diagram to secure the new starter.
Manual Section: Starting MotorTrying to find exact heat exchanger and zinc anti-corrosive plug part numbers for overheating after prolonged high-load operation. p. 40
Review the C.F.W.Cooler(4Lha-St/Dt(Z)E(P) section on page 40 to identify the replacement heat exchanger core. Locate the specific zinc anti-corrosive plugs required for your cooling system. Ensure your replacement parts support the 140/3100 KW/min-1 continuous rated output requirement. Confirm all required gasket part numbers.
Manual Section: C.F.W.Cooler(4Lha-St/Dt(Z)E(P)Need correct cylinder block assembly plugs and matching factory paint color codes for block replacement or overhaul. p. 6
Inspect the Cylinder Block diagram on page 6 to find the correct block assembly and PT1/8 plug part numbers. Match the replacement components to your standard finish color, which is Metallic ecole silver. Order the matching genuine parts to complete the block assembly correctly.
Manual Section: Cylinder BlockFrequently Asked Questions
Document Quality
This document is a high-quality scanned PDF with an accurate OCR layer, allowing you to search and copy the full text. All text is crisp and consistently easy to read across every page. Diagrams and illustrations are clear raster images, and their labels are readable without difficulty. The pages are clean, free from scan artifacts, stains, or skewed content. You will find no notable blank or filler pages within this catalog.
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