Tracking down the right engine components is simple with this 90-page Yanmar 4TNE88-(E) TB (1) (Z), 4TNV88-QTB, QTB1, TB145, 4TNE88-TB (1), 4TNE88-ETB (1), 4TNE88-ETBZ parts catalog pdf (OEM #YOOD6852). Open it up to find highly detailed exploded views of the cylinder block, fuel injection pump, and governor assembly. You get complete part numbers and hardware diagrams for every single item, from the starter armature to the internal water pump components. Verify your hardware counts instantly, like confirming you have all 18 cylinder head bolts and the exact 8x16 dimension for the flywheel housing parallel pin before submitting your order. Ordering the wrong part wastes days of shop time. Grab this bookmarked file, pull it up on your phone at the parts counter, and get the right numbers the first time.
What's Inside This Yanmar 4TNE88 Series Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| How to Read This Parts Catalog | 1-3 | Reference Number, Level Indication, Change Mark, Interchangeability Mark, Effective Machine Number, Remarks Mark |
| Cylinder Block | 6-7 | Block Assembly, Plugs, Metal Caps, Main Bearing Set, Thrust Metal |
| Gear Housing | 8-9 | Housing Assembly, Oil Seal, Flange, Knock Pin, O-Rings |
| Flywheel Housing & Oil Sump | 10-11 | Parallel Pin, Flywheel Housing, Oil Sump Assembly, Drain Plug, Oil Seal Case |
| Cylinder Head & Bonnet | 12-13 | Head Assembly, Valve Guides, Valve Springs, Rocker Arm Assembly, Bonnet Assembly |
| Suction Manifold & Air Cleaner | 14-15 | Intake Manifold, Air Heater, Air Cleaner Assembly, Unloader Valve, Hoses |
| Exhaust Manifold & Silencer | 16-17 | Exhaust Manifold, Gaskets, Silencer, Tail Pipe, Brackets |
| Camshaft & Driving Gear | 18-19 | Tappet, Push Rod, Camshaft Assembly, Cam Gear, Idle Gear, Fuel Injection Pump Gear |
| Crankshaft & Piston | 20-21 | Crankshaft Assembly, Crankshaft Gear, V-Pulley, Piston Assembly, Connecting Rod |
| Lub. Oil System | 22-23 | Oil Pump, Oil Inlet Pipe, Oil Cooler, Oil Filter, Dipstick |
| Cooling Water System | 24-25 | Water Pump, Thermostat, V-Belt, Cooling Fan, Radiator, Water Hoses |
| Fuel Injection Pump | 26-27 | Pump Assembly, Plunger, Delivery Valve, Control Rack, Pinion |
| Governor (Inner Parts) | 28-30 | Weight, Control Lever, Springs, Sleeves, Fuel Control Bolt |
| Fuel Injection Valve | 32-33 | Injector Assembly, Nozzle, Nozzle Holder, Valve Springs, Shim Pack, Fuel Pipes |
| Fuel Line | 34-35 | Fuel Strainer, Fuel Filter, Fuel Pipes, Water Separator, Feed Pump |
| Starting Motor | 36-37 | Starter Assembly, Armature, Field Coil, Brush Holder, Pinion Assembly |
| Generator | 38-39 | Alternator, Rotor Assembly, Stator, Pulley, Regulator, Brackets |
| Gasket Set | 40-41 | Cylinder Head Gasket, Valve Stem Seals, Manifold Gaskets, O-Rings, Oil Seals |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Cylinder Head Bolt Quantity | 18 | p. 7 |
| Camshaft Bush Quantity | 1 | p. 7 |
| Knock Pipe Length | 18 | p. 9 |
| Parallel Pin Dimension | 8X16 | p. 11 |
| Valve Spring Quantity | 8 | p. 13 |
| Key Dimension | 7X14 | p. 19 |
| Oil Pressure Switch Setting | 0.5KG | p. 23 |
| Governor Link Length (Mark 0) | 30 | p. 29 |
| Fuel Strainer Element Length | 89 | p. 35 |
| Starting Motor Bearing (1) Quantity | 1 | p. 37 |
| Generator Alternator Rating | 40A | p. 37 |
Yanmar 4TNE88 Series Common Problems This Manual Covers
Yanmar 4TNE88 engine not starting in cold weather and blowing thick black smoke p. 35
Check the fuel line exploded view on page 34 to locate the strainer assembly. Verify your required fuel strainer element length is 89 mm before ordering. Cross-reference the correct part number for the element and O-rings in the list on page 35 based on your exact machine number.
Manual Section: Fuel LineDashboard shows engine not running fault code due to a faulty engine oil pressure switch p. 23
Inspect the lubrication oil system diagram on page 22 to find the sensor components. Confirm your system uses the standard 0.5KG oil pressure switch setting. Match the switch part number on page 23 with your specific serial number to ensure correct electrical connections.
Manual Section: Lub. Oil SystemSevere lack of power during operation with suspected worn valve train components p. 13
Review the cylinder head and bonnet assembly drawing on page 12. You will need a complete set of 8 for the valve spring quantity. Order the matching retainers and cotters from the parts table on page 13 to complete the upper valve train overhaul.
Manual Section: Cylinder Head & BonnetErratic RPM control and severe power loss requiring internal governor component replacement p. 29
Examine the governor inner parts breakdown on page 28. Identify your specific governor link length, noting that the Mark 0 link is exactly 30 mm. Select the corresponding part number for the link, sleeve, and spring from the reference table on page 29.
Manual Section: Governor (Inner Parts)Battery not charging and diagnostic display shows a faulty alternator error code p. 37
Locate the generator exploded view on page 38 to identify the main charging components. Confirm your replacement matches the 40A generator alternator rating specified for this engine. Find the exact part numbers for the stator and rotor assembly on page 37.
Manual Section: GeneratorFrequently Asked Questions
How do you fix yanmar 4TNE88 engine not starting in cold weather and blowing thick black smoke?
Check the fuel line exploded view on page 34 to locate the strainer assembly. Verify your required fuel strainer element length is 89 mm before ordering. Cross-reference the correct part number for the element and O-rings in the list on page 35 based on your exact machine number.
How do you fix dashboard shows engine not running fault code due to a faulty engine oil pressure switch?
Inspect the lubrication oil system diagram on page 22 to find the sensor components. Confirm your system uses the standard 0.5KG oil pressure switch setting. Match the switch part number on page 23 with your specific serial number to ensure correct electrical connections.
How do you fix severe lack of power during operation with suspected worn valve train components?
Review the cylinder head and bonnet assembly drawing on page 12. You will need a complete set of 8 for the valve spring quantity. Order the matching retainers and cotters from the parts table on page 13 to complete the upper valve train overhaul.
How do you fix erratic RPM control and severe power loss requiring internal governor component replacement?
Examine the governor inner parts breakdown on page 28. Identify your specific governor link length, noting that the Mark 0 link is exactly 30 mm. Select the corresponding part number for the link, sleeve, and spring from the reference table on page 29.
What format is this manual in?
This is a 90-page searchable PDF ready for immediate download. Works on any device, so pull it up on your phone while you're under the hood. No shipping, no waiting.
Can I print specific sections of this Yanmar 4TNE88-(E) TB (1) (Z) & variants?
Yes. The PDF has no DRM restrictions, so print any page or section you need for your shop. Works with any standard printer.
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