Tracking down the right components for your engine rebuild is simple with this 83-page Yanmar 4TNE98-TBZ, 4TNV98-VTBZ, TB175 parts catalog PDF (OEM #YOOD8020). Open the file to find highly detailed exploded diagrams mapping out every inch of the cylinder block, gear housing, and fuel injection pump. You get complete factory parts lists with exact OEM numbers and interchangeability marks for the generator, starting motor, and cooling water system. Verify you are ordering the correct 0.25 undersize main bearings or the exact 0.5KG oil pressure switch before making a parts run. Stop wasting hours cross-referencing outdated vendor sites. Download this bookmarked file directly to your tablet and order exactly what your machine needs today.
What's Inside This Yanmar 4TNE98-TBZ, 4TNV98-VTBZ Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| How to Read Parts Catalog (4TNE98-Tbz) | 1-3 | Reference Guide, Interchangeability Marks, Effective Machine No. |
| Cylinder Block (4TNE98-Tbz) | 7-8 | Block Assembly, Screws, Plugs, Main Bearings, Thrust Bearings, Bushings |
| Gear Housing (4TNE98-Tbz) | 9-10 | Cover, Oil Seal, Gasket, Housing Components, Oil Pump Assembly |
| Cylinder Head & Bonnet (4TNE98-Tbz) | 13-14 | Hose, Lifter, Head Assembly, Valve Guides, Valve Springs, Rocker Arm Assembly |
| Fuel Injection Pump (4TNE98-Tbz) | 27-28 | Assembly, Boost Compensator Type |
| Fuel Line (4TNE98-Tbz) | 31-32 | Fuel Filter, Pipes, Clamps, Joints, Seal Washers, Fuel Return |
| Starting Motor (4TNE98-Tbz) | 33-34 | Armature Assembly, Bearings, Coil Assembly, Brushes, Pinion, Magnetic Switch |
| Gasket Set (4TNE98-Tbz) | 37-38 | Components, O-Rings, Seal Washers, Valve Stem Seals, Wrenches |
| How to Read Parts Catalog (4TNV98-Vtbz) | 42-44 | Reference Guide, Interchangeability Marks, Effective Machine No. |
| Cylinder Block (4TNV98-Vtbz) | 47-48 | Block Assembly, Screws, Plugs, Main Bearings, Thrust Bearings, Bushings |
| Cylinder Head & Bonnet (4TNV98-Vtbz) | 53-54 | Lifter, Head Assembly, Valve Guides, Valve Springs, Rocker Arm Assembly, Bonnet |
| Lubrication Oil System (4TNV98-Vtbz) | 63-64 | Dipstick, Oil Pipes, Oil Filter, Oil Pressure Switch, Oil Pan |
| Cooling Water System (4TNV98-Vtbz) | 65-66 | Water Pump Assembly, Thermostat, V-Belt, Cooling Fan, Radiator Hoses |
| Fuel Injection Valve (4TNV98-Vtbz) | 71-72 | Valve Assembly, Nozzle, Holder, Springs, Shim Pack, Bolts |
| Generator (4TNV98-Vtbz) | 77-78 | Alternator Assembly, Rotor, Stator, Brushes, Regulator, Bolts |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Oil Pressure Switch Setting | 0.5KG | p. 24 |
| Key Dimension (Camshaft/Crankshaft) | 7X 14 | p. 20 |
| Circlip Dimension | 30 | p. 22 |
| Main Bearing Undersize | 0.25 | p. 8 |
| Piston Ring Undersize | 0.25 | p. 22 |
| O-Ring Dimension (Gasket) | G-60.0 | p. 38 |
| 4TNE98-TBZ | ||
| V-Belt Size | A:45 INCH | p. 26 |
| Seal Dimension (Flywheel Housing) | HTC95, 115, 10 | p. 12 |
| 4TNV98-VTBZ | ||
| V-Belt Size | A44 | p. 66 |
| O-Ring Dimension (Gasket) | G-85.0 | p. 80 |
| Seal Dimension (Flywheel Housing) | HTC95, 115, 12 | p. 52 |
Yanmar 4TNE98-TBZ, 4TNV98-VTBZ Common Problems This Manual Covers
Yanmar 4TNE98-TBZ engine requires ether to start in cold weather due to fuel system air leaks p. 37
Inspect the gasket set exploded view on page 37. Locate the replacement seals for the fuel system. Verify you are ordering the correct G-60.0 dimension O-ring shown on page 38. Cross-reference the part numbers before ordering replacements for the filter head.
Manual Section: Gasket Set (4TNE98-Tbz)Temperature gauge pegs red under heavy load with suspected water pump failure or slipping cooling fan belt p. 65
Check the cooling water system parts diagram on page 65. Identify the correct water pump assembly and V-belt for your serial number. Ensure you select the specific A44 size V-belt listed on page 66 for this exact model to prevent slippage.
Manual Section: Cooling Water System (4TNV98-Vtbz)Heavy oil seepage pooling under the flywheel housing area after running for a few hours p. 47
Review the cylinder block diagram on page 47 to locate the rear main seal components. Match your machine details to the correct part number. Verify you are ordering the HTC95, 115, 12 dimension flywheel housing seal noted on page 52.
Manual Section: Cylinder Block (4TNV98-Vtbz)Low oil pressure light flickers at idle despite having a full crankcase and new oil filter p. 63
Examine the lubrication oil system breakdown on page 63. Find the exact part number for the oil pressure switch and corresponding oil pipes. Confirm the replacement switch matches the factory 0.5KG setting listed on page 24 to ensure accurate dashboard warnings.
Manual Section: Lubrication Oil System (4TNV98-Vtbz)Frequently Asked Questions
What are the replacement specifications for fuel filter?
For the Yanmar 4TNE98-TBZ engine, the fuel filter is part number 119000-55600 (Item ID 1) or the fuel filter assembly is part number 129535-52150 (Item ID 37). For the 4TNV98-VTBZ engine, the fuel filter is part number 119802-55800 (Item ID 2) or the fuel filter assembly is part number 129535-52150 (Item ID 37). These parts are listed in the FUEL LINE section.
What are the replacement specifications for air filter?
For the Yanmar 4TNE98-TBZ engine, air cleaner components include part number 129953-12500 for the air cleaner assembly (Item ID 14), 119005-12571 for the inner element (Item ID 16), and 129062-12560 for the element (Item ID 17). For the 4TNV98-VTBZ engine, the air cleaner assembly is part number 129953-12502 (Item ID 11), the inner element is 119005-12571 (Item ID 13), and the element is 129062-12560 (Item ID 14). These parts are found in the SUCTION MANIFOLD & AIR CLEANER section.
How do you fix yanmar 4TNE98-TBZ engine requires ether to start in cold weather due to fuel system air leaks?
Inspect the gasket set exploded view on page 37. Locate the replacement seals for the fuel system. Verify you are ordering the correct G-60.0 dimension O-ring shown on page 38. Cross-reference the part numbers before ordering replacements for the filter head.
How do you fix temperature gauge pegs red under heavy load with suspected water pump failure or slipping cooling fan belt?
Check the cooling water system parts diagram on page 65. Identify the correct water pump assembly and V-belt for your serial number. Ensure you select the specific A44 size V-belt listed on page 66 for this exact model to prevent slippage.
Is this Yanmar 4TNE98-TBZ, 4TNV98-VTBZ, TB175 Parts Catalog a digital download?
Instant PDF download. You get the full 83-page searchable Parts Catalog immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Am I able to print pages from this manual?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
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