Description

Yanmar 4TNE106-GE, 4TNE106T-GE Parts Catalog – OEM Factory Specs

I’ve been an ASE Master Technician for 28 years. I’ve seen more stripped threads and returned parts than most people have had hot meals. That happens when a guy orders a part from an aftermarket catalog based on a fuzzy phone picture. You need the Yanmar 4TNE106-GE, 4TNE106T-GE Parts Catalog if you want to pull the right part number the first time. This is the OEM document – Form No. 908293 – from Yanmar. It covers both the naturally aspirated 4TNE106-GE and the turbo 4TNE106T-GE. 50 pages of exploded diagrams and parts lists. No reprint nonsense, no third-party copy. This is what the dealer uses.

Every parts catalog I’ve seen from aftermarket sources leaves out critical references – like which main bearing set fits the NA vs. turbo block. This Yanmar manual splits those out. It even notes that items shown without a part number are for reference only and not available for purchase. That saves you a phone call to the parts counter asking for a part that doesn’t exist.

Cylinder Block Assembly: What’s Actually Listed

Page 4 of this parts catalog shows the cylinder block assembly in detail. You get the block assembly (part 138149) that includes items #2 through #13. Main bearing cap bolts (part 137972) – you need 10. The main bearing set (part 137975) comes standard or undersized 0.25mm (part 137973). Thrust bearings both standard and oversized are listed. The cylinder head bolts (part 137933) – there are 18 of them. And the head gasket (part 137965). That’s the kind of detail that keeps you from buying a whole engine block when all you needed was a plug. Aftermarket catalogs will show a generic “cylinder block” with one price. This catalog gives you the individual part numbers for every plug, bushing, and pin.

If you are rebuilding a 4TNE106-GE or a 4TNE106T-GE, you need to know which parts differ between NA and turbo. This manual has separate sections for suction manifold, exhaust manifold, and lubrication oil lines – one for NA only, one for turbo only. That’s how you avoid ordering a turbo intake gasket for a naturally aspirated engine. I’ve seen it happen. Costs you a week of downtime.

Does This Manual Separate NA and Turbo Variants?

Yes, and it does it right. The table of contents lists “SUCTION MANIFOLD – NA Only” and “SUCTION MANIFOLD – Turbo Only” as distinct chapters. Same for exhaust manifold and lubrication oil lines. The NA engine uses a different suction manifold and exhaust setup. The turbo engine has additional oil lines and a different exhaust manifold. The parts catalog accounts for that. When you are looking at the exploded view for the cylinder head and valve cover, the head gasket part number is the same across both variants – but don’t assume that for everything. The catalog cross-references every component. If you need the camshaft and driving gear, that’s a shared section (page 17), but the gear housing is separate.

I have had apprentices try to order parts by matching pictures from a general Yanmar manual. That ends in a pile of wrong boxes. This catalog gives you a part number, description, quantity, and a reference number on the diagram. You verify the visual match against the part number, then order. No guesswork.

21 Exploded-View Sections Organized for Fast Retrieval

There are 21 sections in this catalog – from cylinder block through alternator, plus the gasket set and numerical index. Each section covers one subsystem: gear housing, flywheel housing and oil pan, cylinder head and valve cover, crankshaft and piston, lubrication oil system, cooling water system, fuel injection pump, fuel injector, fuel line, engine stop device, starter, alternator. That’s every major system on the engine. The numerical index at the back lets you look up a part number by itself and find which section it appears in. That is useful when you have a bin of used parts and a smeared number. You can match it to the diagram.

The gasket set section (page 41) lists all gaskets and seals in one place. If you are doing a full overhaul, you order that set and then add the individual gaskets for items not included. The catalog tells you exactly what is in the set.

Get the Right Part Number the First Time

Every part number in this catalog is an OEM Yanmar number. That means you can go to any Yanmar dealer or online OEM parts supplier and order direct. No aftermarket cross-reference that might be wrong. For example, the fuel injector section lists the injector assembly part number, the nozzle, and the gasket. If you need to replace a stuck injector on a 4TNE106T-GE, you pull the injector part number from page 31 of this catalog, not from a forum post from 2008. I’ve seen those forum posts lead people to buy injectors meant for a different engine family. Then the engine runs rough, and they blame the pump. Don’t be that guy.

The manual also includes a note: “When ordering service parts, specify the correct part number, full description, quantity required and the engine model number and serial number (located on a plate on the valve mechanical cover).” That’s the procedure. Follow it. If you order without the serial number, you might get a superseded part that doesn’t fit the early-build engine.

Check out related manuals for other Yanmar models: Ammann Yanmar B12 B17 1991 Parts Catalog – OEM Factory Specs and Yanmar YB271, B27 1994 Parts Catalog – OEM Factory Specs and Yanmar YB301 YB351 1991 Parts Catalog – 248 Pages OEM.

Cooling, Fuel, and Lubrication: Chapter Breakdown

The cooling water system chapter (page 27) covers the water pump, thermostat, hoses, and related fittings. The fuel injection pump chapter (page 29) shows the pump assembly, governor parts, and delivery valves. Fuel injector chapter (page 31) shows the injector body, nozzle, and washers. Fuel line chapter (page 33) includes the high-pressure lines and return lines. Lubrication oil system (page 21) covers the oil cooler, filter head, and pump. Lubrication oil line sections (page 23 for NA, separate for turbo) show the turbo oil feed and drain lines.

Every part in these chapters has a quantity field. That matters when you are ordering fasteners or seals that come in packs. The gasket set (page 41) lists a full overhaul gasket kit with part numbers for each gasket.

For a broader view of engine technology, see the Automotive Industry Overview for background on engine design standards. Another good reference is the Automotive Industry Overview article covering manufacturing tolerances.

Can I use this parts catalog to look up service procedures like torque specs?

No. This is a parts catalog, not a service manual. It has no torque values, no repair steps.

Why is the OEM parts catalog better than an aftermarket cross-reference for ordering?

An aftermarket cross-reference often combines multiple engine variations into one generic part number, which can be the wrong length, thread pitch, or material. The Yanmar OEM catalog splits every variant – NA and turbo – into separate sections. It gives you the exact factory part number, the quantity required, and a diagram that shows where it goes. If you order from an aftermarket cross-reference, you risk getting a part that looks close but doesn’t fit the specific 4TNE106T-GE turbo oil drain line, for instance. That costs you a day of labor and a return fee. The OEM catalog removes that risk.

You need this catalog in your shop if you touch any Yanmar 4TNE106 series engine. It saves the aggravation of wrong parts and keeps the job moving. Access the Factory Manual now and put it on your tablet next to the workbench.