Finding the correct replacement components for your engine is simple with this 43-page Yanmar 3TNV76-XTB Parts Catalog PDF (OEM #Y00D7930). You get complete exploded views breaking down the entire cylinder block, fuel injection pump, governor case, and gear housing. Open to any assembly and identify exact OEM part numbers, interchangeability marks, and complete gasket sets instantly. Whether you are verifying the correct 40A alternator rotor, tracking down the sub-tank hose for a 0.9 KG/CM2 radiator cap system, or matching the right plunger assembly for your fuel pump — this bookmarked file loads instantly on your shop tablet so you order the exact factory hardware the first time.
What's Inside This Yanmar 3TNV76-XTB Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| How to Read This Parts Catalog | 1-3 | Reference Number, Level Indication, Change Mark, Interchangeability Mark, Effective Machine No., Remarks Mark |
| Cylinder Block | 5-6 | Block Assembly, Plugs, Bolts, Gaskets, Main Bearing Set |
| Gear Housing | 7-8 | Gear Case, Pump Cover, Oil Seal, O-Rings, Bolts |
| Flywheel Housing & Oil Sump | 9-10 | Flywheel Housing, Oil Sump, Oil Seal, Bolts, Gaskets |
| Cylinder Head & Bonnet | 11-12 | Valve Guides, Springs, Rocker Arm Assembly, Gaskets, Diaphragm |
| Exhaust Manifold & Silencer | 13-14 | Manifold, Silencer, Gaskets, Bolts, Nuts |
| Camshaft & Driving Gear | 15-16 | Camshaft Assembly, Tappets, Push Rods, Idle Gear, Bolts |
| Crankshaft & Piston | 17-18 | Crankshaft Assembly, Piston Rings, Connecting Rods, Bearings, Keys |
| Hydraulic Pump | 19-20 | Gear Pump Assembly, Ball Bearings, Gaskets, Bolts |
| Lub. Oil System | 21-22 | Dipstick, Oil Filter, Oil Pipes, O-Rings, Joint Bolts |
| Cooling Water System | 23-24 | Water Pump, Thermostat, Fan, V-Belt, Gaskets, Sensors |
| Radiator & Air Cleaner | 25-26 | Radiator, Air Cleaner, Sub-Tank, Hoses, Clamps |
| Fuel Injection Pump | 27-28 | Plunger Assembly, Control Rack, Pinion, Bearings, Gaskets |
| Governor | 29-30 | Case, Levers, Springs, Shims, Weights, Solenoid |
| Fuel Injection Valve | 31-32 | Nozzle Holder, Nozzle Assembly, Fuel Pipes, Gaskets, Clamps |
| Fuel Line | 33-34 | Fuel Strainer, Fuel Feed Pump, Water Separator, Hoses, Clamps |
| Starting Motor | 35-36 | Armature, Clutch, Bearings, Gears, Switches |
| Generator | 37-38 | Alternator, Rotor, Bearings, Brushes, Regulator |
| Gasket Set | 39-40 | Cylinder Head Gasket, Oil Pump O-Ring, Valve Stem Seals, Manifold Gasket |
| Parts No. Index | 41-43 | Numerical Index, Part Number Lookup |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Radiator Cap Pressure | 0.9 KG/CM2 | p. 26 |
| Alternator Rating | 40A | p. 38 |
Yanmar 3TNV76-XTB Common Problems This Manual Covers
Yanmar 3TNV76-XTB overheating and losing coolant under load needing a replacement radiator cap p. 26
Check the radiator parts list on page 26. Locate the exact part number for the 0.9 KG/CM2 rated radiator cap. Cross-reference the item number with the exploded view to ensure you order the correct sub-tank hose clamps along with the new cap.
Manual Section: Radiator & Air CleanerBattery not charging during operation and turning over slowly needing replacement generator and regulator parts p. 37
Inspect the generator exploded view on page 37 to identify the correct rotor and bearing part numbers. Verify your replacement unit matches the 40A alternator rating specified on page 38. Order the exact regulator assembly listed for your specific machine serial number.
Manual Section: GeneratorFluctuating engine temperature and coolant leaks from a failing water pump impeller requiring complete replacement p. 23
Examine the cooling water system parts diagram on page 23. Identify the water pump assembly and corresponding V-belt part numbers. Order the required mounting gaskets to ensure the system holds the 0.9 KG/CM2 pressure rating specified for the radiator cap.
Manual Section: Cooling Water SystemFrequently Asked Questions
What are the replacement specifications for Fuel filter?
The manual identifies the fuel filter assembly as part number 119740-55600 (STRAINER ASSY) and its element as part number 119810-55650 (ELEMENT). However, it does not provide specific replacement intervals or procedural specifications for these parts.
What are the replacement specifications for Fuel-water separator?
The manual identifies the fuel-water separator assembly as part number 129335-55700 (SEPARATOR, WATER). Specific replacement intervals or procedural specifications for this component are not detailed in this parts catalog.
How do you fix yanmar 3TNV76-XTB overheating and losing coolant under load needing a replacement radiator cap?
Check the radiator parts list on page 26. Locate the exact part number for the 0.9 KG/CM2 rated radiator cap. Cross-reference the item number with the exploded view to ensure you order the correct sub-tank hose clamps along with the new cap.
How do you fix battery not charging during operation and turning over slowly needing replacement generator and regulator parts?
Inspect the generator exploded view on page 37 to identify the correct rotor and bearing part numbers. Verify your replacement unit matches the 40A alternator rating specified on page 38. Order the exact regulator assembly listed for your specific machine serial number.
What do I get after purchasing this Yanmar 3TNV76-XTB, TB20R/23R?
Instant PDF download. You get the full 43-page searchable Parts Catalog immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Can I print this manual?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
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