All 46 pages of this Yanmar TB108 2TNE68-ETBA Parts Catalog (OEM #YOOD7640) are built around one job: finding the exact part number before you pull the wrong piece off the shelf. Inside, exploded views walk you through every major assembly on the 2TNE68-ETBA engine — cylinder block, gear housing, flywheel housing and oil sump, cylinder head, intake and exhaust, camshaft, crankshaft and piston assembly, lubrication and cooling systems, fuel injection pump, governor, injection valve, fuel filter, starting motor, generator, and the complete tool and gasket set. Cross-reference numbers are called out directly on each diagram so you can match what's in your hand to what's on the page. Reference values embedded in the catalog include the 0.25mm main bearing undersize, crankpin bearing undersize, and piston oversize specs — the numbers you need before you order. Your machine is down; stop guessing part numbers from memory. Bookmarked by system, searchable by keyword — grab the right number and get the order in.
What's Inside This Yanmar 2TNE68-ETBA (TB108) Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Block | 4-5 | - |
| Gear Housing | 6-7 | - |
| Flywheel Housing & Oil Sump | 8-9 | - |
| Cylinder Head & Bonnet | 10-11 | - |
| Suction Manifold & Air Cleaner | 12-13 | - |
| Exhaust Manifold & Silencer | 14-15 | - |
| Camshaft & Driving Gear | 16-17 | - |
| Crankshaft & Piston | 18-19 | - |
| Lub.Oil System | 20-21 | - |
| Cooling Water System | 22-23 | - |
| Fuel Injection Pump | 24-25 | - |
| Governor | 26-28 | - |
| Fuel Injection Valve | 29-30 | - |
| Fuel Filter | 31-32 | - |
| Starting Motor | 33-34 | - |
| Generator | 35-36 | - |
| Tool & Gasket Set | 37-38 | Gasket Set, Gasket, Cyl. Head, Shim Pack, Seal, Valve Stem, Driver, Screw |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Thermostat opening temperature | 82 DEG | p. 23 |
| Oil pressure switch activation pressure | 0.5KG | p. 21 |
| Main bearing undersize | 0.25 | p. 5 |
Yanmar 2TNE68-ETBA (TB108) Common Problems This Manual Covers
Yanmar TB108 fuel filter part number lookup for scheduled replacement on 2TNE68-ETBA engine p. 31
Check the exploded view starting on page 31 (Fuel Filter section, pages 31-32). The parts list there identifies filter element and housing components with individual part numbers. Cross-reference the index to confirm the correct part for your serial number range before ordering.
Manual Section: Fuel FilterCant identify the correct water pump impeller and thermostat parts for cooling system service p. 22
Open the Cooling Water System exploded view on page 22 (pages 22-23). Locate the impeller and thermostat entries in the parts list. The thermostat specified opens at 82°C, so confirm any replacement part matches that rating. Use the index to verify part numbers before ordering.
Manual Section: Cooling Water SystemNeed part numbers for glow plugs and starting motor components for cold-start repair p. 33
Turn to the Starting Motor exploded view on page 33 (pages 33-34) to identify starter components and their part numbers. Glow plugs are typically listed under the Cylinder Head section, pages 10-11. Cross-reference both against the index to confirm correct part numbers for your engine.
Manual Section: Starting MotorIdentifying piston, ring set, and crankpin bearing part numbers for oversize rebuild p. 18
Open the Crankshaft & Piston exploded view on page 18 (pages 18-19). The parts list includes oversize options at +0.25 mm for pistons with rings, ring sets, and crankpin bearings. Main bearing undersizes at 0.25 mm are listed in the Cylinder Block parts list on page 5. Match the oversize stamp on your worn parts to the correct part number before ordering.
Manual Section: Crankshaft & PistonLocating fuel injection valve nozzle and injector part numbers after contamination or poor atomization p. 29
Go to the Fuel Injection Valve exploded view on page 29 (pages 29-30). The parts list identifies nozzle assemblies and individual injector components with part numbers. Also check the Fuel Injection Pump section on page 24 for pump-side parts. Confirm part numbers against the index.
Manual Section: Fuel Injection ValveOil pressure switch and lube system component part numbers needed after low-pressure warning p. 20
Locate the Lub.Oil System exploded view on page 20 (pages 20-21). The oil pressure switch is listed there and activates at 0.5 kg/cm². Find the switch part number in the page 20-21 parts list, then verify against the index. If bearing wear is suspected, also check Cylinder Block parts on page 5 for main bearing undersize options at 0.25 mm.
Manual Section: Lub.Oil SystemFrequently Asked Questions
What are the replacement specifications for Fuel filter?
The manual identifies the fuel filter assembly as part number 119632-55620 (STRAINER ASSY, F. O.) and its element as part number 124550-55700 (ELEMENT, L=90). While specific replacement intervals are not provided, these part numbers are essential for obtaining the correct replacement components.
What are the replacement specifications for Air filter?
The manual identifies the air cleaner assembly as part number 119325-12560 (AIR CLEANER) and its element as part number 119655-12560 (ELEMENT). These part numbers are crucial for sourcing the correct replacement parts, although specific replacement intervals or procedures are not detailed in this catalog.
How do you fix yanmar TB108 fuel filter part number lookup for scheduled replacement on 2TNE68-ETBA engine?
Check the exploded view starting on page 31 (Fuel Filter section, pages 31-32). The parts list there identifies filter element and housing components with individual part numbers. Cross-reference the index to confirm the correct part for your serial number range before ordering.
How do you fix can't identify the correct water pump impeller and thermostat parts for cooling system service?
Open the Cooling Water System exploded view on page 22 (pages 22-23). Locate the impeller and thermostat entries in the parts list. The thermostat specified opens at 82°C, so confirm any replacement part matches that rating. Use the index to verify part numbers before ordering.
What do I get after purchasing this Yanmar TB108 2TNE68-ETBA, TB108?
Immediate download of the complete 46-page searchable Parts Catalog. Access it on any device, from a laptop at your desk to a phone in the field.
Am I able to print pages from this Yanmar TB108 2TNE68-ETBA, TB108?
Yes, fully printable. The PDF is DRM-free. Print whatever sections you need to take out to the shop. Standard letter or A4 paper works.
Document Quality
This document is a scanned PDF that includes an optical character recognition (OCR) layer, which means you can search and copy the full text content. All textual elements, including part numbers, descriptions, and instructions, are consistently crisp and easy to read without any blurriness or fading. The diagrams and exploded views are raster images; while they are not vector, all lines, labels, and reference numbers are clear and perfectly readable at standard viewing magnifications. The pages are uniformly clean, exhibiting no scan artifacts, distracting marks, or skewed orientations.
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