Tracking down the right components for your marine auxiliary engine is simple with this 221-page Yanmar 6EY18(A)L Parts Catalog PDF (OEM #0CH10-M35901EN). You get highly detailed exploded views covering every system, from the MET18 turbocharger and cylinder block to the complete MDO and HFO fuel injection pump assemblies. Open the fuel and cooling sections to find exact factory part numbers, complete hardware sizes, and clear component identification charts that eliminate costly ordering mistakes. Verify you are requisitioning the precise M16X 40 studs or confirming the exact 1AP28.0 O-ring dimensions before you ever tear into the gear housing. Stop relying on fuzzy diagrams and guessed part numbers when placing your freight orders. Grab this bookmarked download, pull it up on your tablet right in the engine room, and get the correct hardware shipped today.
What's Inside This Yanmar 6EY18AL Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Reference Materials | 2 | - |
| Cylinder Block & Liner | 7-8 | Cylinder Block, Liner Assy, Gasket, O-Ring, Stud, Bolt |
| Cylinder Side Cover | 9-10 | Side Cover, Packing, Bolt, Stud, Gasket, O-Ring |
| Cylinder Side Cover(Relife Valve) | 11 | Side Cover, Relief Valve, Gasket, Spring, Washer, Bolt |
| Cylinder Side Cover(Relife Valve)(Each Cllasification) | 12-13 | Side Cover, Relief Valve, Gasket, Washer, Bolt, Nut |
| Gear Housing | 14 | Gear Case, Plug, Gasket, O-Ring, Bolt, Blind Flange |
| 122.(5A)Gear Housing(Front Drive Spec.) | 15 | Gear Case, Plug, Gasket, O-Ring, Bolt, Blind Flange |
| Oil Shield(S.F.W.) | 16 | Cover, Screw, Bolt, Nut, Gasket, Washer |
| Main Metal | 17 | Assy, Thrust Metal Assy, Pin, Parallel, Gasket, Head |
| Breather | 18 | Gasket, Cock, Pipe, Mist Drain, Clamp |
| Pointer | 19 | Flywheel, Bolt |
| 123.(9A)Turning Switch & Flywheel Cover | 20 | Cover, Fly Wheel, Support, Washer, Bolt, Switch, Limit |
| Cylinder Side & Fo-P Chamber Cover | 21 | Label, Yanmar, Support, Pump Cover, Cover, Knob, Joint Bolt, Fitting Plate |
| 126.(10A)Cover | 22 | Tape, Fn, Cover, L, Copper Wire |
| Cylinder Head | 23-24 | Head Assy, Cylinder, Valve Seat, O-Ring, Valve Guide, Spring, Stud |
| Valve Rocker Arm Support & Bonnet | 25 | Bracket Assy, Rocker Arm Assy, Bonnet, Adjust Screw Assy, Shaft, Gasket |
| Boost Press.Switch & Boost Press.Pipe | 26 | Pipe, Boost, Support a, Support B, Intake Guage, Valve, Needle |
| 125.(13A)Boost Press.Pipe(Psg Governor Spec.) | 27 | Support, Pipe, Intake Guage, Gasket, Valve, Needle |
| Exhaust Manifold | 28 | Amnifold, Exhaust, Manifold, EXH.CONNECT Pipe, Gasket, Head Out, Expansion Joint |
| Exhaust Manifold Cover | 29 | Cover, EXH.MANIFOLD, Support, EXH.COVER, Washer, Bolt, Eyebolt |
| Fire Proof Cover | 30 | - |
| Camshaft | 31 | Assy, Gear, Governor, Tappet Assy, Push Rod Comp. |
| Idle Gear | 32 | Bracket, Idle, Plate, Cam Idle, Gear Assy, Bush, Washer |
| Indicator Cock | 33 | Valve Rod, Guide, Valve, Lock Nut, Gasket |
| Turbocharger(Met18) | 34-35 | Turbine MTE18, Air Duct, Gasket, Plug, Bolt, Nut |
| Turbocharger Conponent Part(Met18) | 36-37 | Bolt, Punching Plate, Gas Inlet Casing, Bearing Pedestail, Labyrinth Packing, Rotor Shaft |
| Exhasut Outlet Pipe | 38 | Pipe, Exhaust, Mat, Glass, Gasket, Plug, Bolt, Bellows |
| Air Cooler(Fresh Water Spec.) | 39 | Core Comp, Casing, Side Cover, O-Ring, Gasket |
| 117.(23A)Air Cooler(Sea Water Spec.) | 40 | Air Cooler, Core Comp, Casing, Side Cover, O-Ring, Gasket |
| Blower & Turbin Washer Unit | 41 | Plug, Clamp, Snap Joint, Nipple, Gasket, Socket |
| Crankshaft & Flywheel | 42-43 | Crankshaft Assy, Block Assy, Cylinder, Gear, Flywheel, Gear Ring, Stud |
| Piston & Connecting Rod | 44 | Piston Assy, Cover, Ring Set, Piston, Piston Pin, Rod Assy, Connecting, Metal |
| Lub. Oil Pump | 45 | - |
| Lub. Oil Priming Motor Pump | 46 | - |
| 164.(28A)Priming Motor Pump Inner Parts(Gv-43N) | 47 | Pump, Motor, Pump Casing, Drive Shaft, O-Ring, Parallel Pin |
| 165.(28B)Priming Motor Pump Inner Parts(Gv-43P) | 48 | L |
| 166.(28C)Priming Motor Pump Inner Parts(Vlg-4C) | 49 | - |
| 167.(28D)Priming Motor Pump Inner Parts(Vlg-5C) | 50 | - |
| Lub. Oil Cooler(Fresh Water Spec.) | 51 | - |
| 118.(29A)Lub. Oil Cooler(Sea Water Spec.) | 52-53 | - |
| Lub. Oil Press. Regulating Valve | 54 | Valve Assy, Control, Valve, Spring, Retainer, Packing |
| Lub. Oil Dipstick | 55 | - |
| 127.(31A)Drain Plug(Common Bed) | 56 | Plug, Wire, Gasket |
| Lub. Oil Strainer | 57 | Strainer, Gasket, Bolt, Nut |
| 128.(32A)Lub. Oil By-Pass Strainer(Hfo) | 58 | Centrifugal Filter, Bracket, Gasket, Rubber, Stud Bolt, Bolt |
| 129.(32B)Lub. Oil By-Pass Strainer(Mdo/Hfo) | 59 | Strainer, Bracket, Gasket, Bolt, Stud, Nut |
| 130.(32C)By-Pass Strainer Inner Parts(Hfo) | 60 | Centrifugal Filter, Cover Assy, Rotor Assy, Seals Kit, Paper Insert, Switch Valve |
| 131.(32D)By-Pass Strainer Inner Parts(Hfo)(From E01893) | 61 | Centrifugal Filter, Cover Assy, Rotor Assy, Seals Kit, Paper Insert, Switch Valve |
| 132.(32E)By-Pass Strainer Inner Parts(Mdo/Hfo) | 62 | Strainer, Rotor Assembly, Cover Clamp, Bearing Tube Assy, Stand Tube, Rotor Cover Nut |
| Lub. Oil Thermostat | 63 | LO.THERMOSTAT Assy, Piston, Cover, Adjusting Bolt, Spring, Element |
| Lub. Oil Pipe(Pump-Cooler) | 64 | Pipe, LUB.OIL, Gasket, Bolt, Nut, O-Ring |
| Lub. Oil Pipe(Strainer Out)(Up to E01589) | 65 | Pipe (Filter Out), Support Set, Support, Gasket, Bolt, Nut |
| 133.(35A)Lub. Oil Pipe(Strainer Out)(From E01590) | 66 | Pipe (Filter Out), Joint Bolt, Support, Gasket, Bolt, Nut |
| 134.(35B)Lub. Oil Pipe(Cjc Strainer) | 67 | Support, Pipe, Lo, Cjc Filter, Union, Bolt, Gasket, Nut |
| 135.(35C)Lub. Oil Pipe(Bypass-Strainer Draiving)(Hfo) | 68 | Pipe, FM200 Drive, Union, Nipple, Gasket, Bolt, Valve |
| 136.(35D)Lub. Oil Pipe(Bypass-Strainer Draiving)(Mdo) | 69 | Pipe, FM200, Nipple, Gasket, Bolt, Union, Valve |
| 137.(35E)Lub. Oil Pipe(Strainer-Bypass Strainer)(Up to E01639) | 70 | Pipe a (Filter Out), Pipe B (Filter Out), Pipe C (Filter Out), Support, Union, Joint Bolt |
| 138.(35F)Lub. Oil Pipe(Strainer-Bypass Strainer)(From E01640) | 71 | Pipe a (Filter Out), Pipe B (Filter Out), Pipe C (Filter Out), Joint Bolt, Union, Support |
| Lub. Oil Pipe(Reglating Valve-Turbocharger) | 72 | Pipe, LUB.OIL, Body, Valve, Control, Hexagon Plug, Bracket |
| Lub. Oil Pipe(Pliming) | 73 | Pipe (Lo Priming), Valve, Reverse, Packing, Bolt, Washer |
| Lub. Oil Pipe(Fuel Pump Pinion Oilling) | 74 | Valve Assy, Control, Valve, Nut, Cap, Body |
| Lub. Oil Pipe(Generator)) | 75 | Pipe (Gen), Support, Bolt, Joint, Gasket, Clamp |
| Lub. Oil Press. Switch Pipe & Press. Gauge Pipe | 76 | Pipe, Lub. Oil, Socket, Gasket, Valve, Needle, L/O Pressure |
| 139.(40A)Lub. Oil Press.Gauge Pipe(Psg Governor Spec.) | 77 | - |
| 140.(40B)Lub. Oil Pipe(Psg Governor Spec.) | 78 | Pipe, LUB.OIL, Bolt, Pipe Joint M8, Gasket, Union |
| 141.(40C)Lub. Oil Pipe(Auto Sluice Valve) | 79 | Pipe, LUB.OIL, Support, Joint, Gasket, Astap Cock |
| 142.(40D)Air Vent Pipe(Overflow) | 80 | Air Vent Pipe, Gasket, Union |
| Cooling Water Pump(High Temp Water)(To 2014.11) | 81-82 | Pump Assy, Impeller, Shaft, Seal, Bearing, Gear |
| 168.(41A)Cooling Water Pump(High Temp Water)(From 2014.12) | 83 | Pump, Cw High, Bracket, Impeller, Shaft, Seal, Bearing, Gear |
| Cooling Water Pump(Low Temp Water)(To 2014.11) | 84-85 | Pump Assy, Impeller, Shaft, Seal, Bearing, Gear |
| 169.(42A)Cooling Water Pump(Low Temp Water)(From 2014.12) | 86 | Pump, Cw Low, Bracket, Impeller, Shaft, Seal, Bearing, Gear |
| Cooling Water Thermostat(High Temp Water) | 87 | Case, Thermostat, Seal, Cover, Packing, Gasket, Plug, Bolt |
| Cooling Water Thermostat(High Temp Water) | 88 | Case, Thermostat, Seal, Cover, Packing, Gasket |
| 143.(44A)Auto Sluice Valve | 89 | Valve, O-Ring, Seat, Body, Gasket, Flange |
| Cooling Water Collecting Pipe | 90 | Pipe, Packing, Gasket, Plug, Cover, O-Ring |
| Cooling Water Valve(High Temp Water) | 91 | Hcw Valve, Air Cylinder, Air Piston, O-Ring, Gasket, Orifice |
| Cooling Water Valve(Low Temp Water) | 92 | Lcw Valve, Air Cylinder, Air Piston, O-Ring, Gasket, Pipe |
| 121.(47A)Cooling Sea Water By-Pass Valve(Low Temp Water:Sea Water)(Manual) | 93 | Bypass Valve, Packing, Cover, Handle, O-Ring, Gasket |
| Cooling Water Pipe(High Temp Water)(Pump-I/C-Block) | 94 | Gasket, Packing, Pipe, Plug, Bolt, Valve Assy |
| Cooling Water Pipe(Low Temp Water)(Pump-I/C-Block) | 95 | Packing, Pipe, Gasket, Plug, Bolt, Nut |
| 119.(49A)Cooling Sea Water Pipe(Low Temp Water)(Engine In-I/C-L.O.Cooler) | 96-97 | Pipe, Packing, Gasket, Bolt, Nut, Cover |
| Cooling Water Pipe(By-Pass & Warmth) | 98 | Pipe, Gasket, Orifice, Packing, Bolt |
| Cooling Water Pipe(L.O.Cooler Out) | 99 | Pipe, Plate, Packing, Gasket, Plug, Bolt |
| 120.(51A)Cooling Sea Water Pipe(Low Temp Water)(Lub. Oil Cooler Out) | 100 | Pipe, Support, Packing, Gasket, Bolt, Nut |
| Cooling Water Inlet/Outlet Pipe | 101 | Pipe, Packing, Bolt, Stud, Nut |
| 144.(52A)Cooling Water Inlet/Outlet Pipe(1-Pump Mixing) | 102 | Packing, Orifice, Pipe, Gasket, Plug, Bolt, Nut |
| Cooling Water Drain Pipe(Cylinder) | 103 | Pipe, Clamp, Bolt, Valve |
| Cooling Water Drain Pipe(Air Cooler & Cylinder) | 104 | Pipe, Support, Gasket, Cock, Bolt, Drain Pipe |
| Cooling Water Press. Switch Pipe & Gauge Pipe | 105 | Pipe, Cooling Water, Support, Pressure Gauge, Valve, Needle, Joint |
| 145.(55A)Cooling Water Press. Gauge Pipe(Psg Governor Spec.) | 106 | Pipe, Pressure Gauge, Valve, Needle, Support, Nut, Cap, Joint |
| 124.(55B)Air Vent Valve & Outlet Pipe | 107 | Gasket, Bolt, Label, Valve, Orifice, Joint |
| Fuel Injection Pump(Mdo) | 108-109 | Pump Assy, Injection, Plunger Assy, Valve Assy, Delivery, Rack, Control, Pinion |
| Fuel Injection Pump(Hfo) | 110-111 | Pump Assy, Injection, Plunger Assy, Valve Assy, Delivery, Rack, Control, Pinion |
| Fuel Injection Pump Driving Device | 112 | Bracket, FI.PUMP, TAPPET.ROLLER Comp., ADJUST.SCREW, Oil Shield, O-Ring, Parallel Pin |
| Fuel Feed Pump(Mdo) | 113 | Pump Assy, Feed, Gear, Body, Feed Pump, Shaft, Valve Assy, Control |
| Fuel Feed Pump(Hfo) | 114-115 | Pump Assy, Feed, Gear, Body, Feed Pump, Shaft, Valve Assy, Control |
| Fuel Injection Valve | 116 | Valve Assy, Injection, O-Ring, Nut, Nozzle, Spring, Retainer |
| Fuel Strainer(Mdo) | 117 | Strainer, Fuel, Element, Fuel Oil, Packing, BRACKET(FO FILTER)A, Gasket, Sump |
| Fuel Strainer(Hfo) | 118 | Strainer, Fuel Oil, Filter Element, Gasket, Valve, Air Vent, Cock |
| 146.(63A)Fuel Strainer(Hfo)(Class Gl) | 119 | Strainer, Fuel Oil, Filter Element, Gasket, Valve, Air Vent, Cock |
| Fuel Press.Regulating Valve & Fuel Overflow Tank | 120 | Valve Assy, Control, Spring, Retainer, Valve, Adjust Screw, Fo Leak Tank, Float Switch |
| Fuel Injection Pipe | 121 | Joint, Pipe, Bolt, Packing, Flang, Oval, Lock Nut |
| Fuel Main Pipe | 122 | Pipe, Fuel Oil Main, Fuel Return, Support, Main Pipe, Seal Washer, Union |
| Fuel Pipe(Mdo)(Feed Pump In/Out) | 123 | Pipe, Fo (Fofp in), FO(FOFP OUT)MDO, Seal Washer, Gasket, Plug, O-Ring |
| Fuel Pipe(Hfo)(Feed Pump In/Out) | 124 | Pipe, Fo (Fofp Out), Fo (Bypass Out), Fo (Fofp in), Support (Fo Pipe), O-Ring |
| Fuel Pipe(Mdo)(Strainer-Main Pipe) | 125 | Pipe, Fuel Oil, Support, Seal Washer, Union, Bolt, Stud |
| Fuel Pipe(Hfo)(Strainer-Main Pipe) | 126-127 | Pipe, Fuel Oil, Support, Seal Washer, Union, Bolt, Gasket |
| Fuel Pipe(Main Pipe-Reg.Valve Return) | 128 | Fo Pipe, O-Ring, Bolt, Pipe, Support, Gasket |
| Fuel Pipe(Cylinder Return) | 129 | Pipe, Fuel Leak, Joint Bolt, Spacer, Support, Seal Washer |
| Fuel Pipe | 130 | Pipe, Over |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Bush Dimensions | 31X15 mm | p. 3 |
| Bolt Dimensions | M12X 25 PLATED | p. 7 |
| Stud Dimensions | M16X 40 | p. 7 |
| O-Ring Dimensions | 1AP28.0 | p. 7 |
| Nut Dimensions | M16 | p. 9 |
Yanmar 6EY18AL Common Problems This Manual Covers
Yanmar 6EY18(A)L internal coolant leak or pressure loss near the cylinder liner p. 7
Inspect the cylinder block and liner parts diagram on page 7. Find the exact part number for the 1AP28.0 O-Ring to reseal the liner. Identify the required packing components in the index to secure the assembly properly and prevent future leaks.
Manual Section: Cylinder Block & LinerOil leaking heavily down the side of the engine block near the cylinder side cover p. 9
Review the cylinder side cover parts list on page 9. Locate the replacement side cover packing and gasket part numbers. Verify you order the correct M16X 50 bolt and M16 nut listed in the catalog to securely mount the cover plate and stop the seepage.
Manual Section: Cylinder Side CoverStripped mounting threads or broken hardware inside the main engine block casing p. 7
Check the cylinder block exploded view on page 7. Find the exact part numbers for the M16X 40 stud and M12X 25 PLATED bolt. Order the correct replacement fasteners from the catalog to ensure proper clamping force and secure the heavy components.
Manual Section: Cylinder Block & LinerFrequently Asked Questions
How do you fix yanmar 6EY18(A)L internal coolant leak or pressure loss near the cylinder liner?
Inspect the cylinder block and liner parts diagram on page 7. Find the exact part number for the 1AP28.0 O-Ring to reseal the liner. Identify the required packing components in the index to secure the assembly properly and prevent future leaks.
How do you fix oil leaking heavily down the side of the engine block near the cylinder side cover?
Review the cylinder side cover parts list on page 9. Locate the replacement side cover packing and gasket part numbers. Verify you order the correct M16X 50 bolt and M16 nut listed in the catalog to securely mount the cover plate and stop the seepage.
How do you fix stripped mounting threads or broken hardware inside the main engine block casing?
Check the cylinder block exploded view on page 7. Find the exact part numbers for the M16X 40 stud and M12X 25 PLATED bolt. Order the correct replacement fasteners from the catalog to ensure proper clamping force and secure the heavy components.
What format is this manual in?
A 221-page Parts Catalog in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Can I print this manual?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
Reviews
There are no reviews yet.