Tracking down the right replacement numbers for your 2006 Yanmar engine? This 124-page Yanmar 3tne82a-tb, tb125 parts catalog pdf breaks down every sub-assembly so you can order exactly what your TB125 excavator needs. You get highly detailed exploded views covering the complete fuel injection pump, gear housing, and cooling water system. Open directly to your specific engine variant to find clear component identification alongside exact factory part numbers for every individual piece. Verify the exact hardware requirements for your specific serial range before ordering.
What's Inside This Yanmar 3TNE82A / 3TNV82A Series Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Block | 5-6 | Cylinder Block Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Gear Housing | 7-8 | Gear Housing Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Flywheel Housing & Oil Sump | 9-10 | Flywheel Housing & Oil Sump Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Cylinder Head & Bonnet | 11-12 | Cylinder Head & Bonnet Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Suction Manifold & Air Cleaner | 13-14 | Suction Manifold & Air Cleaner Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Exhaust Manifold & Silencer | 15-16 | Exhaust Manifold & Silencer Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Camshaft & Driving Gear | 17-18 | Camshaft & Driving Gear Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Crankshaft & Piston | 19-20 | Crankshaft & Piston Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Lub.Oil System | 21-22 | Lub.Oil System Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Cooling Water System | 23-24 | Cooling Water System Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Fuel Injection Pump | 25-26 | Fuel Injection Pump Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Governor | 27-28 | Governor Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Fuel Injection Valve | 29-30 | Fuel Injection Valve Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Fuel Line | 31-32 | Fuel Line Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Starting Motor | 33-34 | Starting Motor Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Generator | 35-36 | Generator Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Gasket Set | 37 | Gasket Set Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Parts Index | 38-41 | Parts Index Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Exhaust Manifold & Silencer (Qtb) | 95-96 | Exhaust Manifold & Silencer (Qtb) Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Exhaust Manifold & Silencer (Qtb1) | 97-98 | Exhaust Manifold & Silencer (Qtb1) Parts, Exploded Parts Diagram, Part Numbers, Quantities |
| Tool & Gasket Set | 121 | Tool & Gasket Set Parts, Exploded Parts Diagram, Part Numbers, Quantities |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Parallel Pin Size | 8x16 mm | p. 9 |
| Drain Plug Size | M22 | p. 9 |
| Seal Washer Size | 22S | p. 9 |
| Spring Pin Size | 6x12 mm | p. 11 |
Yanmar 3TNE82A / 3TNV82A Series Common Problems This Manual Covers
Yanmar 3TNE82A-TB engine oil leak at the bottom block requiring a replacement drain plug p. 9
Inspect the parts list on page 9 for the lower block components. Verify the M22 drain plug and the 22S seal washer part numbers for your serial range. Cross-reference the 8x16 mm parallel pin if replacing the oil sump mating surfaces.
Manual Section: Tne82A-TbEngine will not turn freely after assembly needing the correct gear housing spring pin part numbers p. 11
Inspect the gear housing exploded view on page 11. Locate the correct part number for the 6x12 mm spring pin used in the assembly. Match this pin number against your parts list to ensure proper alignment and prevent internal drag.
Manual Section: Tne82A-TbEngine rebuild requires replacing damaged alignment pins but cannot locate the correct block parallel pin size p. 9
Review the cylinder block parts diagram on page 9. Find the exact part number for the 8x16 mm parallel pin required for your assembly. Confirm the quantity needed in the parts list before placing your final order to ensure correct fitment.
Manual Section: Tne82A-TbFrequently Asked Questions
How do you fix yanmar 3TNE82A-TB engine oil leak at the bottom block requiring a replacement drain plug?
Inspect the parts list on page 9 for the lower block components. Verify the M22 drain plug and the 22S seal washer part numbers for your serial range. Cross-reference the 8x16 mm parallel pin if replacing the oil sump mating surfaces.
How do you fix engine will not turn freely after assembly needing the correct gear housing spring pin part numbers?
Inspect the gear housing exploded view on page 11. Locate the correct part number for the 6x12 mm spring pin used in the assembly. Match this pin number against your parts list to ensure proper alignment and prevent internal drag.
How do you fix engine rebuild requires replacing damaged alignment pins but cannot locate the correct block parallel pin size?
Review the cylinder block parts diagram on page 9. Find the exact part number for the 8x16 mm parallel pin required for your assembly. Confirm the quantity needed in the parts list before placing your final order to ensure correct fitment.
Which gasket set covers the 3TNE82A-TB and 3TNV82A-QTB engines?
The Yanmar 3TNE82A/3TNV82A gasket set is listed on page 37 of this parts catalog. Cross-reference your serial number — serial prefix 12510009 and higher — against the gasket set part number to confirm the correct kit for your engine variant before ordering.
Is this Yanmar 3TNE82A-TB & variants Parts Catalog a digital download?
You get a 124-page searchable PDF that downloads instantly after checkout. Open it on your laptop, tablet, or phone, and bring it right to the shop floor.
Can I print this manual?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
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