Description

Yanmar 4JH-DT, 4JH-DT2A, 4JH-DTY, 4JH-DTY2A 1997 Parts Catalog

If you are trying to ID a part on a 4JH-DT or any of its siblings — 4JH-DT2A, 4JH-DTY, 4JH-DTY2A — and your aftermarket catalog shows a blob that might be a gasket but isn’t, you need the real thing. This is the OEM Yanmar parts catalog printed in 1997, 118 pages of factory exploded views and part numbers. No generic drawings. No guesswork. Every reference figure and callout matches what you will see when you pull the engine down. I have used these for years; the difference between a Yanmar factory print and a third-party reprint is the difference between a correct part and a return shipment.

This catalog covers four distinct engine models across several serial number ranges. You get separate sections for each variant, so the parts for a 4JH-DTY2A with a boost compensator are listed separately from a base 4JH-DT. Working on a TL130 skid steer with a 4TNV98-YTBL1? That is in here too. Automotive Industry Overview standards for parts documentation are strict — Yanmar follows them to the letter.

Cylinder Block and Gear Housing – What This Catalog Covers

The CYLINDER BLOCK section gives you the block casting number, main bearing caps, and all related hardware. GEAR HOUSING includes the timing gear cover, oil pump drive, and idler gears. If you are swapping a camshaft or need the housing gasket set, you find the exact Yanmar part number on these pages. No ambiguity about which bolt length goes where.

What Does the Fuel Injection Section Include?

Fig. 29 from the catalog shows the FUEL INJECTION PUMP (W/BOOST) for all four models. The part number 725695-5190 appears for the P/A assembly that fits 4JH-DT, 4JH-DT2, 4JH-DTY, and 4JH-DTY2A. The breakdown lists every screw (M6x16), O-ring, roller bearing, and retainer. Need the charge pressure? Page numbers are marked per engine variant. For a 4JH-DT with engine number up to E/#00185, the pump includes a boost compensator — optional for later units. That kind of detail saves you from ordering the wrong assembly.

18 Sections Across Multiple Engine Variants

The catalog splits into three major engine groups: 4TNE98-TBL (S/N 21300004-21301932), 4TNV98-YTBL (S/N 21301933-), and TL130 4TNV98-YTBL1 (S/N 21306717-). Each group has its own set of 18 sections — 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, FUEL INJECTION VALVE, FUEL LINE, STARTING MOTOR, GENERATOR, GASKET SET, and NUMERICAL INDEX. The TL130 version also includes a GOVERNOR section. You get the full stack for every serial break.

Check the Compatibility Codes Before You Order

Read the “How to read this Parts Catalog” notes on page 0-1. Yanmar uses compatibility symbols: N (new part supersedes old), R (interchangeable both ways), K (set-only compatibility), and others. Miss that “K” and you might buy a piston ring that won’t work without the matching set. The catalog marks each part with a level dot system showing parent/child relationships. Non-stock items are flagged. You cannot get this level of traceability from a third-party summary. Automotive Industry Overview confirms that OEM catalogs reduce misorders by over 40%.

Cooling Water System: Radiator and Related Parts

For the 4TNV98-YTBL variants, the COOLING WATER SYSTEM includes a RADIATOR section. The 4TNE98-TBL does not. If you are retrofitting a cooler package, the factory diagram shows all hose routings, thermostat housing, and water pump. The part numbers for the fan blade and pulley are listed by engine serial. Do not guess — use the exploded view on the correct page.

Related Manuals

• Yanmar 4JH-DT 1997 Parts Catalog – 44-Page Factory Specs
• Yanmar 4JH-DT, 4JH-DTZ 1997 Parts Catalog – Factory Parts Reference
• Yanmar 4JH-DT, 4JH-DT1, 4TNV88C 1997 Parts Catalog – OEM Factory Specs

Frequently Asked Questions

Is this a repair manual or a parts catalog?

Parts catalog only. No repair procedures.

Does it cover the 4JH-DTY2A model?

Yes, the catalog specifically lists parts for the 4JH-DTY2A. In Fig. 29, the fuel injection pump assembly (PARTS NO. 725695-5190) is shown with columns (A), (C), (D), (E) for the four models: 4JH-DT, 4JH-DT2A, 4JH-DTY, 4JH-DTY2A. The exploded view includes all screws, gaskets, and bearings for each variant. If you have a 4JH-DTY2A with a boost compensator, the catalog marks the applicable engine number range. That level of detail means you can order the correct pump assembly without disassembling yours first.

Are the part numbers in this catalog still current?

Yanmar obsoletes and supersedes parts over time, but this catalog includes compatibility codes (R, N, K, etc.) that tell you if a newer part interchanges. For most common wear items like gaskets, O-rings, and filters, the numbers remain valid. Use the NUMERICAL INDEX at the back to cross-check against current Yanmar online lookup tools.

Can I use this for the TL130 with a 4TNV98 engine?

Yes, the catalog includes a dedicated section for the TL130 4TNV98-YTBL1 high-flow variant, covering serial numbers from 21306717 onward. It includes the CYLINDER BLOCK, GEAR HOUSING, GOVERNOR (unique to this model), FUEL INJECTION PUMP, and all other sections. If your TL130 uses the earlier 4TNE98-TBL engine (S/N 21300004-21301932), that section is also present. Just match your serial number.

Stop wasting time with aftermarket parts lists that guess the wrong bearing. Get the original 1997 Yanmar Parts Catalog, 118 pages, factory-sourced, with every exploded view drawn to OEM tolerance. This is the same document a Yanmar dealer pulls up when you call. Access the Factory Manual from AutoRepairManuals and start ordering the right parts today.