Part of the Yanmar Parts Manuals.
The fuel injection pump is where a TNV rebuild goes sideways: order one wrong plunger or delivery valve and the engine sits on the stand for a week while parts go back and forth. This Yanmar parts catalog is built to stop that. It covers the 3TNV88-GGE, 3TNV88-DSA, DSA2 and DSA3, plus the 3TNV84T-GGE, 3TNV84T-KSA, 3TNV82A-GGE and 3TNV82A-DSA, with exploded diagrams and part numbers for every major group: cylinder block, cylinder head, crankshaft and piston, lubrication, cooling water, fuel injection, starting motor and generator, along with optional kits from air cleaner to radiator.
When you are alone with a stripped engine and nobody to ask which gasket set or bearing fits your exact variant, this is the reference. At 29 pages the PDF rides along on a phone or laptop, wherever the engine happens to be.
What's Inside This Yanmar Yanmar 3TNV82A-3TNV88 Series Parts Manual
| System | Pages |
|---|---|
| Cylinder Block | 2-3 |
| Gear Housing | 4-5 |
| Flywheel Housing & Oil Sump | 6 |
| Cylinder Head & Bonnet | 7 |
| Suction Manifold | 8 |
| Exhaust Manifold | 9 |
| Camshaft & Driving Gear | 10 |
| Crankshaft & Piston | 11 |
| Lub.Oil System | 12 |
| Cooling Water System | 13 |
| Fuel Injection Pump | 14 |
| Fuel Injection Valve | 15 |
| Fuel Line | 16 |
| Starting Motor | 17-18 |
| Generator | 19 |
| Gasket Set | 20 |
| Engine Foot (Optional Kit) | 22 |
| Air Cleaner (Optional Kit) | 23 |
| Exhaust Manifold (Optional Kit) | 24 |
| Silencer & Tail Pipe (Optional Kit) | 25 |
| Hydraulic Pump Driving (Optional Kit) | 26 |
| Oil Cooler (Optional Kit) | 27 |
| Radiator (Optional Kit) | 28 |
| Electric Parts (Optional Kit) | 29 |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| 3TNV88-DSA, 3TNV88-DSA2, 3TNV88-DSA3, 3TNV88-GGE | ||
| THERMOSTAT operating temperature | 71 | p. 13 |
| THERMO SWITCH activation temperature | 110 C | p. 13 |
| Parallel Pin Dimension | 8X16 mm | p. 6 |
| Crankshaft Key Dimension | 7X14 mm | p. 11 |
| Oil Filter Dimension | 80X80L mm | p. 12 |
| 3TNV82A-GGE, 3TNV82A-DSA, 3TNV84T-GGE, 3TNV84T-KSA, 3TNV88-GGE, 3TNV88-DSA | ||
| Ball Bearing Dimension | 13/32 inch | p. 27 |
Yanmar Yanmar 3TNV82A-3TNV88 Series Common Problems This Manual Covers
Hard starting in cold weather
Cold no-starts on these engines usually trace back to fuel supply: clogged filters, air in the lines, or degraded fittings letting the system lose prime. The Fuel Line section diagrams every pipe, filter and joint so you can identify and replace the exact piece that is drawing air.
Manual Section: Fuel Line p. 16Injector trouble from contaminated fuel
Water or debris in the fuel wears nozzles and causes poor combustion and power loss. The Fuel Injection Valve section breaks down the injector assemblies with part numbers, so a set of replacement nozzles matches your engine variant the first time.
Manual Section: Fuel Injection Valve p. 15Overheating and coolant leaks
A failing water pump, tired thermostat or blocked passages will push these engines into overheat, sometimes without an obvious warning. The Cooling Water System section covers the pump, the 71 degree thermostat and related hardware so you can order the full circuit in one pass.
Manual Section: Cooling Water System p. 13Internal wear after an overheat
Once an overheat or lubrication failure has scuffed rings and cylinder walls, the bottom end comes apart. The Crankshaft & Piston section lists pistons, rings and bearings for each covered model so the rebuild parts list comes straight off the diagram.
Manual Section: Crankshaft & Piston p. 11Low oil pressure and lubrication faults
Neglected oil service starves bearings long before a gauge makes it obvious. The Lub.Oil System section identifies the oil pump, filter and related components, including the correct filter element for these variants.
Manual Section: Lub.Oil System p. 12Starter cranks slowly or fails
A dragging or dead starting motor is a common end-of-life failure on engines that live outdoors. The Starting Motor section shows the correct starter and mounting hardware for each variant, since the DSA and GGE models use different units.
Manual Section: Starting Motor p. 17Frequently Asked Questions
Which Yanmar engine models does this parts catalog cover?
It covers the 3TNV88-GGE, 3TNV88-DSA, 3TNV88-DSA2, 3TNV88-DSA3, 3TNV84T-GGE, 3TNV84T-KSA, 3TNV82A-GGE and 3TNV82A-DSA. Parts tables show per-model quantity columns, and variant-specific pages (such as the separate Gear Housing and Starting Motor pages for DSA and GGE engines) keep the differences clear.
Is this a service manual with torque specs and clearances?
No. This is a parts catalog: exploded diagrams and part numbers for identifying and ordering components. It does not include torque sequences, valve lash, bearing clearances or repair procedures. It pairs well with a service manual when you already know the fix and need the correct parts.
Does it cover the cooling system parts for overheating repairs?
Yes. The Cooling Water System section lists the water pump, the 71 degree thermostat, the 110 C thermo switch and associated hoses and hardware, so you can replace the whole overheating-prone circuit with correct numbers. p. 13
Are optional accessories like the radiator and air cleaner included?
Yes. Beyond the core engine sections, the catalog has Optional Kit pages covering the engine foot, air cleaner, exhaust manifold, silencer and tail pipe, hydraulic pump driving, oil cooler, radiator and electric parts. p. 22
Is this Yanmar 3TNV88-GGE & variants Parts Catalog a digital download?
You get a 29-page searchable PDF that downloads instantly after checkout. Open it on your laptop, tablet, or phone, and bring it right to the shop floor.
Is this Yanmar 3TNV88-GGE & variants Parts Catalog printable?
Yes. The PDF has no DRM restrictions, so print any page or section you need for your shop. Works with any standard printer.
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