Part of the Yanmar Parts Manuals.
Hunting down the right part number for your Yanmar 3TNE68-ENBAC engine? This 32-page Y00V3629 parts catalog (OEM #Y00V3629) maps every assembly from cylinder block to gasket sets, covering all 15 engine systems in the 3TNE68 family. Inside, exploded-view diagrams break out the crankshaft and piston assemblies, fuel injection device, governor, starting motor, and generator, each paired with factory part numbers and direct component cross-references. The 12V-0.8KW starter motor and 0.5KG lube oil pressure switch are called out with their exact factory part numbers, so you order the right replacement on the first call, not the third. No more guessing from a blurry photocopy or a forum post. Bookmarked by assembly section and searchable by keyword; pull it up on any device and have the factory number ready before you dial your dealer.
What's Inside This Yanmar 3TNE68-ENBAC, 3TNE68, Y00V3629 Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Block | 2-3 | Cylinder Block Assy, Main Bearing, Thrust Bearing, Bush, Cylinder Head Gasket, Joint PT1 |
| Gear Housing | 4-5 | Gear Case Cover Assy, Oil Seal HTC456208, Gear Case Cmp, Lub. Oil Pump Assy, Cover, Gasket, Pipe Knock, Lub. Oil Supply Cap |
| Flywheel Housing & Oil Sump | 6-7 | Flywheel Housing, Flywheel Cover Cap, Oil Seal, Oil Sump Assy |
| Cylinder Head & Bonnet | 8-9 | Bonnet Assy, Lub. Oil Supply Cap, Breather Joint, Shelter Plate, Gasket, Bonnet Gasket, Pipe 12X, Knob |
| Suc. & Exh. Manifold | 10-11 | Intake Manifold, Suction Manifold Gasket, Exhaust Manifold, Exhaust Manifold Gasket |
| Camshaft & Driving Gear | 12-13 | Camshaft Assy, Camshaft Gear, Thrust Bearing, Tappet, Push Rod, Retainer, Fuel Injection Pump Cam Assy, Fuel Injection Pump Gear |
| Crankshaft & Piston | 14-15 | Crankshaft Assy, Crankshaft Gear, Flywheel Assy, Ring Gear, V-pulley, Piston w/ Rings, Ring Set, Connecting Rod Assy |
| Lub. Oil System | 16-17 | Dipstick Guide, Dipstick, Lub. Oil Filter, Oil Intake Pipe Assy, Lub. Oil Switch |
| Cooling Water System | 18-19 | Cooling Water Pump Assy, Cooling Water Pump Gasket, Thermo Switch, Gasket, Joint, Joint O_ring, V-pulley, V-belt |
| Fuel Injection Device | 20-21 | Fuel Injection Pump Assy, Plunger w/ Barrel, Retainer, Plunger Spring, Delivery Valve w/ Seat, Delivery Valve Spring, Delivery Valve Holder, Delivery Gasket |
| Fuel Pipe | 22-23 | Fuel Pipe w/ Joint, Pipe Joint, Fuel Oil Pipe Assy, Fo-t, Pipe Joint Bolt Assy, Fuel Strainer, Taper Valve Spring |
| Governor | 24-25 | Gasket, Governor Case Cover, Governor Weight Assy, Spacer, Governor Sleeve, Governor Case, Link Color, Shaft |
| Starting Motor | 26-27 | 12V- .8KW Starter, Shift Lever Kit, Pinion Stopper Set, Thrust Washer Kit, Armature, Rear Cover Assy, Brush Holder Assy, Brush |
| Generator | 28-29 | Collar, Plate Assy, Stator, Coupler, Flywheel Assy, V-belt Adjuster, Spacer |
| Gasket Set (Optional) & Tools | 30-32 | Gasket Set, Cylinder Head Gasket, Valve Stem Seal, Nozzle Gasket, Bonnet Gasket, Suction Manifold Gasket, Exhaust Manifold Gasket, Cooling Water Pump Gasket |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Thrust Bearing Undersize | 0.25US | p. 14 |
| Lub. Oil Pressure Switch Setting | 0.5KG | p. 16 |
| V-Belt Length | 35.0 | p. 18 |
| Starter Motor Rating | 12V-0.8KW | p. 26 |
Yanmar 3TNE68-ENBAC, 3TNE68, Y00V3629 Common Problems This Manual Covers
Cannot identify the correct fuel injection nozzle assembly part number for the 3TNE68 engine p. 20
Open the Fuel Injection Device exploded view on page 20. The nozzle assembly is listed under F.INJECT parts. Cross-reference the Plunger W/BARREL and Nozzle Assy line items on page 21 to confirm the correct part numbers for your serial number range before ordering.
Manual Section: Fuel Injection DeviceNeed part numbers for cooling water pump components including impeller and gasket p. 18
Go to the Cooling Water System section on page 18. The Pump Assy C.Water, C.W. Pump gasket, and V-Pulley are all listed with individual part numbers. Check page 19 for the detailed cooling parts diagram. The V-Belt listed measures 35.0 in length, verify yours before ordering a replacement.
Manual Section: Cooling Water SystemLooking for the oil filter part number and lubrication system components to order a service kit p. 16
Find the Lub. Oil System section on page 16. The Filter Lub. Oil, Oil Intake Pipe Assy, O-Ring, and oil pressure Switch are all itemized there. The oil pressure switch is rated at 0.5KG, cross-reference that part number if you are replacing the switch along with the filter.
Manual Section: Lub. Oil SystemNeed to identify the correct main bearing or thrust bearing part number for crankshaft service p. 9
Locate the Cylinder Block section in the exploded parts list. The Main Bearing and Thrust Bearing entries include both standard and 0.25US undersize options. Cross-reference the part numbers listed against your crankshaft journal measurements before ordering to ensure the correct undersize specification.
Manual Section: Cylinder BlockFrequently Asked Questions
What causes a Yanmar 3TNE68 to overheat and trip the shutdown?
The Yanmar 3TNE68 engine is equipped with a thermal switch, part number 121250-44901, which is designed to activate at 110°C. This switch is part of the cooling water system and indicates an overheating condition, likely triggering a shutdown when this temperature threshold is exceeded.
What are the replacement specifications for fuel filters?
For replacement of fuel filter components on the Yanmar 3TNE68, the fuel strainer is part number 119255-55620. The filter element itself is part number 124550-55700, and it uses a spring, part number 121250-55620.
How do you fix can't identify the correct fuel injection nozzle assembly part number for the 3TNE68 engine?
Open the Fuel Injection Device exploded view on page 20. The nozzle assembly is listed under F.INJECT parts. Cross-reference the Plunger W/BARREL and Nozzle Assy line items on page 21 to confirm the correct part numbers for your serial number range before ordering.
How do you fix need part numbers for cooling water pump components including impeller and gasket?
Go to the Cooling Water System section on page 18. The Pump Assy C.Water, C.W. Pump gasket, and V-Pulley are all listed with individual part numbers. Check page 19 for the detailed cooling parts diagram. The V-Belt listed measures 35.0 in length — verify yours before ordering a replacement.
What format is this manual in?
A 32-page Parts Catalog in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Are there any print restrictions on this Yanmar 3TNE68-ENBAC, 3TNE68, Y00V3629?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
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