Looking for the exact factory part numbers for your engine rebuild? This 126-page Yanmar TB75/80FR, 4TNE98-TB, 4TNV98-WTB parts catalog PDF breaks down every single component of your diesel power plant. You get detailed exploded diagrams showing the exact assembly order for the cylinder block, fuel injection pump, and gear housing. Open to any section and find complete parts lists with factory numbers, component descriptions, and mounting hardware for everything from the cooling water system to the complete gasket set. Stop guessing if you need the A42 V-belt or the 41.5 variant, and confirm the exact 0.25 undersize main bearing required for your crank. Getting the wrong part stalls the whole shop. Download this file, use the built-in bookmarks to jump straight to your subsystem, and get your parts order right the first time.
What's Inside This Yanmar 4TNE98-TB Parts Manual
| System | Pages |
|---|---|
| Cylinder Block | - |
| Gear Housing | - |
| Flywheel Housing & Oil Sump | - |
| Cylinder Head & Bonnet | - |
| Suction Manifold & Air Cleaner | - |
| Exhaust Manifold & Silencer | - |
| Camshaft & Driving Gear | - |
| Crankshaft & Piston | - |
| Lub.Oil System | - |
| Cooling Water System | - |
| Fuel Injection Pump | - |
| Governor | - |
| Fuel Injection Valve | - |
| Fuel Line | - |
| Engine Stop Device | - |
| Starting Motor | - |
| Generator | - |
| Gasket Set | - |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Oil Pressure Switch Activation | 0.5 KG | p. 21 |
| Main Bearing Undersize | 0.25 | p. 5 |
| Thrust Bearing Oversize | 0.25 | p. 5 |
| TB75/80FR 4TNE98-TB, 4TNE98-TBA | ||
| V-Belt Type | A42 | p. 23 |
| 4TNV98-WTB | ||
| V-Belt Type | 41.5 | p. 111 |
Yanmar 4TNE98-TB Common Problems This Manual Covers
Yanmar 4TNE98-TB low oil pressure warning light stays on, heavy lower end engine knock, or sudden internal damage p. 4
Check the Engine Parts Diagram on page 4. Locate the oil pressure switch and verify its activation rating is 0.5 KG. Cross-reference the main bearing undersize kit at 0.25 on page 5 to order the correct replacement components for a complete rebuild.
Manual Section: Engine for 4TNE98-TbWorn water pump drive belt squealing, fluctuating engine temperature, or heat-related power loss p. 23
Inspect the exploded view for the cooling system drive on page 23. Verify you are ordering the correct A42 type V-Belt for your machine. Match your serial number against the parts list to ensure proper fitment before installing the new belt.
Manual Section: Engine for 4TNE98-TbWTB model water pump drive failure, severe overheating, fluctuating temperature, or heat-related power loss p. 111
Review the cooling system parts breakdown on page 111. Order the specific 41.5 type V-belt required for the 4TNV98-WTB engine configuration. Check the interchangeability marks in the parts index to confirm you have the latest updated part number for the assembly.
Manual Section: Engine for 4TNV98-WtbHeavy lower end knocking noise under load or sudden internal damage during operation p. 5
Examine the engine block exploded diagram on page 4. Find the thrust bearing oversize replacement parts listed at 0.25 on page 5. Use the machine serial number guide to match the exact bearing kit required for your specific block casting.
Manual Section: Engine for 4TNE98-TbFrequently Asked Questions
What are the fuel filter and water separator part numbers for the Yanmar 4TNE98-TB engine?
For the Yanmar 4TNE98-TB engine, the fuel filter cartridge is part number 119000-55600 and the fuel filter body is 129470-55610. The water separator (CMP SEPARATOR, WATER) is part number 129335-55700, and the full separator assembly is 129906-55700. These are listed on page 33 of the parts catalog.
Which diagram and part numbers cover this issue: Yanmar 4TNE98-TB low oil pressure warning light stays on, heavy lower end engine knock, or sudden internal damage?
Check the Engine Parts Diagram on page 4. Locate the oil pressure switch and verify its activation rating is 0.5 KG. Cross-reference the main bearing undersize kit at 0.25 on page 5 to order the correct replacement components for a complete rebuild.
Which diagram and part numbers cover this issue: Worn water pump drive belt squealing, fluctuating engine temperature, or heat-related power loss?
Inspect the exploded view for the cooling system drive on page 23. Verify you are ordering the correct A42 type V-Belt for your machine. Match your serial number against the parts list to ensure proper fitment before installing the new belt.
Which diagram and part numbers cover this issue: WTB model water pump drive failure, severe overheating, fluctuating temperature, or heat-related power loss?
Review the cooling system parts breakdown on page 111. Order the specific 41.5 type V-belt required for the 4TNV98-WTB engine configuration. Check the interchangeability marks in the parts index to confirm you have the latest updated part number for the assembly.
Which diagram and part numbers cover this issue: Heavy lower end knocking noise under load or sudden internal damage during operation?
Examine the engine block exploded diagram on page 4. Find the thrust bearing oversize replacement parts listed at 0.25 on page 5. Use the machine serial number guide to match the exact bearing kit required for your specific block casting.
How will I receive this Yanmar 4TNE98-TB Engine Parts Catalog?
You get a searchable PDF that downloads instantly after checkout. Open it on your laptop, tablet, or phone, and bring it right to the shop floor.
Are there any print restrictions on this manual?
No. The PDF is DRM-free, so print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
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