Description

Yanmar 4JH-DT, 4JH-DTY, TB135, 4JH-DTZ 1997 Parts Catalog

If you’ve ever ordered a part for a Yanmar engine and ended up with the wrong size piston ring or a fuel injection pump that doesn’t match your serial number, you know the pain. That’s what happens when you rely on generic online listings or a parts counter guy reading a screen. This 52-page OEM parts catalog from 1997 is the only source that gives you the exact factory part numbers for the Yanmar 4JH-DT, 4JH-DTY, TB135, 4JH-DTZ engines. No guesswork, no returns. Just the exploded diagrams and part lists Yanmar used to build these engines.

Cylinder Block and Bottom End Parts (Fig01)

Start with the Cylinder Block figure. On page 3 of the catalog, the table of contents lists CYLINDER BLOCK Fig01. That’s where you’ll find the block itself, liners, pistons, and the main bearing set. The exploded view shows every bolt, dowel, and plug with a Yanmar part number. If you need a new cylinder head gasket set, you cross-reference the GASKET SET Fig17 at the back. Don’t waste time digging through aftermarket cross-reference charts; the factory drawing shows exactly which gasket goes where.

Camshaft & Driving Gear: Two Variants Covered

The catalog separates the camshaft and driving gear into two figures: Fig07 for TB,TB1 and Fig07-1 for ETB,ETB1. That matters because the gear train changed between variants. If you have a 4JH-DT or 4JH-DTZ, you need the right camshaft (part number 122710-51560 on page 1 of the fuel pump section). One wrong tooth count and your timing is off. The catalog lists the roller bearing retainers and screws with exact thread sizes — M6x16, M8x22. Get those right or risk a dropped valve.

Fuel System: Injection Pump and Lines (Fig11-14)

The fuel injection pump section takes up four figures. Fig11 covers TB,TB1; Fig11-1 covers ETB,ETB1. Then Fig13 is the injection valve, Fig14 is the fuel line routing. If you’re rebuilding a 4JH-DTY with a boost compensator, note the remark on page 1: ‘BOOST COMPENSATOR TYPE. OPTIONAL PART. TO E/F #00155.’ That means the pump changed at engine number #00155. The catalog gives you the exact engine serial range where each pump applies. No aftermarket catalog gives you that kind of detail.

Cooling and Lubrication Systems (Fig09-10)

LUB.OIL SYSTEM Fig09 and COOLING WATER SYSTEM Fig10 cover the oil pump, cooler, thermostat housing, and raw water pump. These are critical for marine applications. One wrong hose clamp or gasket and you get a salt water leak into the oil pan. The diagrams show every pipe, fitting, and seal. Use the figure numbers to find parts fast — instead of flipping through 200 pages, you go straight to Fig10 for the cooling system.

52 Pages of Factory Part Numbers — Why OEM Matters

Aftermarket parts catalogs often combine multiple engine families into one book. This one is specific to TB135, 3TNE88-TB,TB1,ETB,ETB1 with serial numbers 13510004-13514050. The 52 pages are printed from Yanmar’s own database. The compatibility symbols (N, R, K, S, W, Z) tell you if a part supersedes the old one or if it’s discontinued. If you see a ‘K’ next to a camshaft, that part is not interchangeable — you need the newer number. No aftermarket book has those compatibility notations. That’s why you buy from AutoRepairManuals, the largest collection of OEM shop manuals in North America with verified factory specifications. Check out the Yanmar 4JH-DT Series Engine Parts Catalog 1997 for the full series, the Yanmar TB135 4JH Engine Parts Catalog for more TB-specific data, or the Yanmar TL150 4JH Series Engine Parts Catalog if you’re working on the loader version.

For background on why OEM documentation matters in the Automotive Industry Overview context, see the Automotive Industry Overview page.

Does this catalog include torque specifications?

No. This is a parts catalog, not a service manual.

Can I use this catalog for a 4JH-DTZ engine?

Yes. The catalog explicitly lists the 4JH-DTZ in the fuel injection pump section (pages 1-2). The column D under Fig29 is for 4JH-DTZ. Check your engine serial number against the range given.

How do I decode the part numbers?

First, locate the figure number for the assembly you need (e.g., Fig08 for crankshaft and piston). Then find the corresponding page in the list on page 3 of the catalog. Each part has a seven-digit Yanmar part number (e.g., 122710-51560 for the camshaft). The column marked ‘Remarks’ may include compatibility symbols — if you see a ‘K’, that part is not interchangeable with the previous version. Always verify your engine serial number against the ‘A=E/#00185’ notation. The guide at the front of the catalog (page 0-1) is written in both English and Japanese, so you can understand the column headers.

Is this a digital PDF or a physical book?

It’s a digital PDF format. 52 pages, scanned from the original 1997 Yanmar publication.

You need the right part the first time. Stop relying on guesswork and aftermarket cross-reference lists. Get the factory diagram with the exact part number Yanmar assigned. Access the Factory Manual from AutoRepairManuals and keep it on your phone or tablet while you work.