Hunting for the exact factory part numbers for your Yanmar Engine? This 140-page Yanmar 4TNE98-TB, 4TNV98-WTB, TB75/80FR Parts Catalog PDF (OEM #Y00D6820) breaks down every component for the 4TNE98-TBA and related variants. You get highly detailed exploded views for the entire block assembly, from the gear housing and flywheel to the fuel injection pump. Open to the complete parts lists to see exactly how the cooling water system and suction manifold fit together. Match the 119000-55600 fuel filter cartridge for the 4TNE98-TB or verify the 129062-12560 air filter element to get your machine breathing right. Quit guessing at part numbers and dealing with returns. Grab this bookmarked file, open it on your tablet at the parts counter, and order exactly what you need.
What's Inside This Yanmar 4TNE98 Series Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Engine for 4TNE98-Tb | 3 | Engine for 4Tne98-Tb Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Cylinder Block | 7-8 | Cylinder Block Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Gear Housing | 9-10 | Gear Housing Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Flywheel Housing & Oil Sump | 11-12 | Flywheel Housing & Oil Sump Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Cylinder Head & Bonnet | 13-14 | Cylinder Head & Bonnet Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Suction Manifold & Air Cleaner | 15-16 | Suction Manifold & Air Cleaner Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Exhaust Manifold & Silencer | 17-18 | Exhaust Manifold & Silencer Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Camshaft & Driving Gear | 19-20 | Camshaft & Driving Gear Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Crankshaft & Piston | 21-22 | Crankshaft & Piston Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Lub.Oil System | 23-24 | Lub.Oil System Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Cooling Water System | 25-26 | Cooling Water System Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Fuel Injection Pump | 27-30 | Fuel Injection Pump Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Governor | 31-34 | Governor Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Fuel Injection Valve | 35-36 | Fuel Injection Valve Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Fuel Line | 37-38 | Fuel Line Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Engine Stop Device | 39-40 | Engine Stop Device Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Starting Motor | 41-42 | Starting Motor Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Generator | 43-44 | Generator Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Gasket Set | 45 | Gasket Set Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Numerical Index | 46-50 | Numerical Index Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Engine for 4TNE98-Tba | 51 | Engine for 4Tne98-Tba Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Engine for 4TNV98-Wtb | 99 | Engine for 4Tnv98-Wtb Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Fuel Injection Pump(Inner Parts) | 125-126 | Fuel Injection Pump(Inner Parts) Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Governor(Inner Parts) | 127-128 | Governor(Inner Parts) Parts, Exploded Parts Diagram, Part Numbers, Quantities |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| 4TNE98-TB | ||
| Fuel filter replacement part | 119000-55600 (Cartridge) | p. 37 |
| Thermostat replacement part | 121850-49810 | p. 25 |
| Water pump replacement part | 129900-42001 | p. 25 |
| Head gasket replacement part | 129902-01330 | p. 7 |
| Valve cover gasket replacement part | 129900-11310 | p. 13 |
| Oil filter replacement part | 129150-35151 (Filter 80X80L) | p. 23 |
| 4TNE98-TBA | ||
| Fuel filter replacement part | 119000-55600 (Cartridge) | p. 81 |
| Thermostat replacement part | 121850-49800 | p. 73 |
| Water pump replacement part | 129900-42001 | p. 73 |
| Head gasket replacement part | 129902-01331 | p. 55 |
| Valve cover gasket replacement part | 129900-11310 | p. 61 |
| All Models | ||
| Air filter replacement part | 129062-12560 (Element) | p. 15 |
Yanmar 4TNE98 Series Common Problems This Manual Covers
Yanmar 4TNE98-TB engine overheats after short runtime and needs a new head gasket p. 7
Check the cylinder head exploded view on page 7 to identify the correct sealing components. Order replacement head gasket part #129902-01330 for this specific build. Review the diagram for any damaged dowel pins or necessary valve cover baffle parts before placing your final parts order.
Manual Section: Engine for 4TNE98-TbHard starting or power drop under load requiring a new fuel filter assembly p. 131
Inspect the fuel system parts diagram on page 131 to locate the proper filtration components for the 4TNV98-WTB. Order replacement filter part #119802-55800 to restore proper flow. Cross-reference the mounting hardware in the index to ensure you have all required replacement pieces.
Manual Section: Engine for 4TNV98-WtbHigh coolant temperatures during operation indicating a failed thermostat or leaking water pump p. 73
Review the cooling system breakdown on page 73 for the 4TNE98-TBA engine. Match your required cooling components, including the replacement thermostat part #121850-49800 and water pump part #129900-42001. Confirm gasket numbers in the accompanying parts list to prevent coolant leaks after assembly.
Manual Section: Engine for 4TNE98-TbaEngine lacks power and struggles under heavy loads due to a restricted air intake p. 15
Locate the air intake system diagram on page 15 to find the exact filtration hardware. Order replacement element part #129062-12560, which fits all covered models. Inspect the intake housing diagram for any missing clips or damaged rubber seals that might allow dirt ingestion.
Manual Section: Engine for 4TNE98-TbFrequently Asked Questions
What are the replacement specifications for Fuel filters?
For the Yanmar 4TNE98-TB and 4TNE98-TBA engines, the fuel filter is part number 119000-55600 and the fuel filter body is part number 129470-55610. For the Yanmar 4TNV98-WTB engine, the fuel filter is part number 119802-55800 and the filter bracket is part number 129004-55611. This parts catalog lists the part numbers but does not provide detailed technical specifications for replacement.
What are the replacement specifications for Air filters?
For the Yanmar 4TNE98-TB and 4TNE98-TBA engines, the air cleaner assembly is part number 129953-12520 and the element is part number 129062-12560. For the Yanmar 4TNV98-WTB engine, the air cleaner assembly is part number 129953-12521 and the element is part number 129062-12560. This parts catalog lists the part numbers but does not provide detailed technical specifications for replacement.
How do you fix yanmar 4TNE98-TB engine overheats after short runtime and needs a new head gasket?
Check the cylinder head exploded view on page 7 to identify the correct sealing components. Order replacement head gasket part #129902-01330 for this specific build. Review the diagram for any damaged dowel pins or necessary valve cover baffle parts before placing your final parts order.
How do you fix hard starting or power drop under load requiring a new fuel filter assembly?
Inspect the fuel system parts diagram on page 131 to locate the proper filtration components for the 4TNV98-WTB. Order replacement filter part #119802-55800 to restore proper flow. Cross-reference the mounting hardware in the index to ensure you have all required replacement pieces.
How will I receive this Yanmar 4TNE98-TB, 4TNE98-TBA, 4TNV98-WTB, TB75/80FR?
Immediate download of the complete 140-page searchable Parts Catalog. Access it on any device, from a laptop at your desk to a phone in the field.
Am I able to print pages from this Yanmar 4TNE98-TB, 4TNE98-TBA, 4TNV98-WTB?
Yes, print as many copies as you want, and there are no restrictions. Many mechanics print the section they need and bring it to the shop floor.
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