Description

Yanmar 4TNV98 1997 Parts Catalog – Factory Document for Correct Part Numbers

If you work on construction equipment like the TB175C excavator that uses the Yanmar 4TNV98 1997 Parts Catalog, you already know the pain of ordering a part that looks right but doesn’t fit. That’s because aftermarket catalogs strip out the critical compatibility marks. This is the real deal: 38 pages of OEM part numbers, exploded views, and level codes that tell you exactly which revision fits your engine serial number. The fuel injection pump section alone (page 1) saves you from buying the wrong camshaft or sprocket. Access the Factory Manual if you want to stop returning parts.

An aftermarket parts list will give you a part number, maybe two. This catalog gives you the level code (K, R, S, W, F, P) that tells you if the part is interchangeable forward or backward, or requires a set replacement. That level of detail comes directly from Yanmar’s engineering release system. If you skip it, you might end up with a camshaft that fits the gear but doesn’t match the boost compensator linkage.

Fuel Injection Pump (W/Boost) – Page 1 Details

Page 1 of this catalog covers the fuel injection pump assembly for the 4TNV98 with boost compensator. You get part numbers for the delivery valve assembly (72595-51300, 72596-51301), the camshaft (129470-51040), sprocket (129471-51050), retainer (129470-51060), and the screws (M6x16). The table includes quantity per engine for different variants (A through G columns). That means if you have a 4JH-DT or 4JH-DTZ engine, you know exactly how many of each part you need.

Cylinder Block Assembly – Reference Fig01

Fig01 shows the cylinder block assembly for the 4TNV98-VTBZC engine used in TB175C excavator. While the catalog doesn’t list every bolt and gasket, it does group major components like pistons, liners, and bearings. For complete overhauls, cross-reference this catalog with the YANMAR TNV Series Industrial Engines Service Manual.

Read the Level and Compatibility Codes

Those level codes (K, R, S, W, F, P) aren’t decoration. They tell you exactly how a part can be replaced. For instance, K means the new part is interchangeable with the old one, but only if replaced together with related parts. R means the old part can be used in place of the new one (reverse compatibility). The catalog also uses I marks for newly designed parts and change marks to indicate revisions after the initial release. Ignoring these codes leads to returns and downtime. The compatibility logic is consistent with global equipment standards discussed in the Automotive Industry Overview.

38 Pages of OEM Precision – Yanmar 4TNV98 1997 Parts Catalog

38 pages might seem thin compared to a full service manual, but every page is packed with precise part numbers and compatibility data. This catalog covers the fuel system, cylinder block, cylinder head, lubricating system, and more. It’s the same document Yanmar dealers use to order parts. If you’re rebuilding a 4TNV98, you need this to avoid aftermarket confusion. Pair it with the Yanmar TNV Series Industrial Engines Troubleshooting Manual – Section: Failure I for deeper diagnostics.

Who Needs This Parts Catalog?

Home garage enthusiasts rebuilding a 4TNV98 for a generator or pump application will save hours by having the correct part numbers at hand. Shops will eliminate customer-waiting time caused by wrong orders. Even beginners can use the exploded views to trace oil leaks or identify missing fasteners. But if you expect torque specs or repair steps, you need the service manual instead – the Yanmar 3TNV82A, 3TNV84, 3TNV88, 4TNV84, 4TNV88 2009 Service Manual covers those later models. Understanding the broader context of global equipment standards can also help; refer to the Automotive Industry Overview for background.

Q: Does this catalog include torque specifications?

No. This is a parts catalog. For torque values, get the Yanmar TNV service manual.

Q: How do I use the reference numbers and level marks to order parts?

Each part has a REF NO. and a LEV. mark (like K, R, S). These tell you compatibility. For example, if your engine serial number is after #00185, you need the updated camshaft (129470-51040). The level code K means the new part replaces the old one without modification, but only if also replaced as a set. Read page 1 carefully to decode the columns. If you skip this step, you will order the wrong part.

Q: Is the fuel injection pump section complete?

Yes, it covers both boost compensator and non-boost versions. Includes delivery valves, camshaft, sprocket, etc. Part numbers from 72595-51300 through 129470-51060.

Q: Is this catalog in English?

Bilingual Japanese and English. The part numbers and descriptions are clear in both languages.

No aftermarket catalog matches this level of detail.

Stop returning parts. Order exactly what Yanmar specified. Access the Factory Manual now and keep a copy on your tablet next to the workbench.