Description

Yanmar 4TNV84T-GGE Parts Catalog – Factory Specs for the TNV Series

You got a Yanmar 4TNV84T-GGE Parts Catalog on the bench and you’re trying to sort out which main bearing set goes in that block. Aftermarket sites will sell you a “compatible” piece that doesn’t match the factory cross-reference. I’ve seen a 0.25mm undersize bearing cause a knock because someone trusted a generic listing. This 40-page catalog is the exact PDF Yanmar prints for their own dealers – no reskinned copy, no scanned reprints with missing lines. Every figure number, every reference code, every part number is laid out the way the factory intended. If you’re tearing down a 4TNV84T-GGE for overhaul, this is the document you pull up before picking up a phone.

Cylinder Block: What You’ll Find in Fig.1

The block assembly (part 729508-01560) is called out with six variants – A through F – covering 4TNV84T-DSA, DSA2, DSA3, and the GGE model you’re working on. You get the main bearing set for standard and 0.25 undersize, the thrust metal, cylinder head studs, and the head gasket (129508-01330). If you’ve ever tried to order a head gasket for a GGE and got the wrong thickness, you’ll appreciate that the parts list separates the GGE row from the DSA rows. No guesswork.

Gear Housing Differences: DSA vs GGE Models

Fig.2 shows the gear case assembly (729508-01520) used on the GGE. The oil seal, relief valve spring, inner and outer rotor, and filler cover are all listed with their own part numbers. Notice the optional parts note – if your engine has a different pump cover, the parts list flags it. This level of detail is why you don’t want a third-party “universal” diagram. The GGE and DSA models share some components, but the gear case flange and stud lengths differ. You get the exact specs here.

Does This Parts Catalog Cover the Fuel System?

Yes – sections 14 through 18 and 23 through 26 are dedicated to the Fuel injection pump, injection valve, fuel line, and governor internals. The GGE gets its own pump group (Fig.15) and governor group (Fig.26). If you’re rebuilding a pump, the inner parts breakdown shows every plunger, spring, and tappet with its reference number. The fuel injection valve sections (Fig.16 and 17) separate the DSA and GGE nozzles – they are not interchangeable. Do not swap them.

3 Sections You Cannot Skip When Ordering Gaskets

Gasket set (Fig.22) is a single figure, but it covers the entire engine: cylinder head, oil pan, gear case, water pump, and exhaust manifold. You’ll also need to cross-reference the Cooling water system (Fig.13) for the thermostat housing gasket and the Valve cover gasket from the cylinder head section. The cool part about this catalog is that each gasket part number links back to the assembly figure – no flipping pages to find whether the water pump gasket is shared with another model. It’s all in one place.

Camshaft & Driving Gear – Exploded View

Fig.8 covers the Camshaft and driving gear. The bushing from the cylinder block (129795-02411) is listed separately – that’s the camshaft bushing you need to press in. If you’ve got a worn lobe, the camshaft itself is a line item with its own part number. The gear train (crank gear, idler gear, cam gear) is shown with gear case housing references. This is where a generic parts list fails – they give you a camshaft number but leave out the thrust washer or the key. Yanmar does not.

Why OEM Documentation Beats Aftermarket Copies

I’ve had techs hand me a “Yanmar 4TNV84T-GGE service manual” printed from a CD that had half the pages misaligned. The bolt callouts were wrong. This catalog comes from Yanmar’s own parts database – the PDF has the same layout as what a dealer punches up on their terminal. The page numbers match, the figure references are hyperlinked (in the original, but our access gives you the full PDF with bookmarks). If you’ve ever been burned by a third-party reprint, you know the difference. OEM means no surprises. Check out the Ammann Yanmar B12 B17 Parts Catalog for related models, or the Yanmar YB271, B27 1994 Parts Catalog – OEM Factory Specs and Yanmar YB301 YB351 1991 Parts Catalog – 248 Pages OEM for other engine families.

FAQ

Is this the same as a service manual?

No. This is a parts catalog with exploded diagrams and part numbers only. It won’t tell you torque specs or repair procedures.

How do I use it to order parts?

Find the figure number (e.g., Fig.1 for cylinder block), locate your engine variant in the header row – GGE is column (E) for most figures. Read the parts list vertically: the reference number (REF) corresponds to the numbered callout in the diagram. The PARTS NO. column gives the Yanmar factory number. Use that number when ordering. Some parts have under-size (U.S.0.25) or over-size (O.S.0.25) variants – pay attention to the remarks. If you skip that, you’ll get the wrong bearing.
For more context on diesel engine applications, see the Automotive Industry Overview or the Automotive Industry Overview for general background. But for parts ordering, stick to this catalog.

If you want to stop wasting time cross-referencing wrong part numbers and risking a return, access the factory manual from AutoRepairManuals. This Parts Catalog for the Yanmar 4TNV84T-GGE gives you the exact exploded views, part numbers, and quantity callouts you need to order components the first time. 40 pages, OEM source, no guesswork. Access the Factory Manual now.