Part of the Yanmar Parts Manuals.
Need the exact OEM part numbers for your Yanmar 3TNV76-XTB engine? All 42 pages of this Parts Catalog cover the TB20R, TB23R, and P-TB23REAB in factory detail, with exploded views and numbered parts lists for every assembly from cylinder block to gasket sets. Inside, you get 18 complete system sections: crankshaft and piston assemblies, fuel injection pump with plunger and delivery valve callouts, governor components down to shim sets and solenoids, starter motor internals, and the full alternator assembly. Cross-reference electrical parts, hydraulic pump components, and cooling system pieces by OEM number without guessing. The crankshaft flange bolt is M12xP1.25; the oil pressure switch is set at 0.5 kg. Your machine is down and the wrong part adds another day of downtime. Bookmarked and searchable, jump straight to Fuel Line or Gear Housing and order the right piece the first time.
Other edition of this manual
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Block | 4-5 | Block Assy, Cylinder, Plug, Bolt, Bush, Camshaft, Main Bearing Set, Gasket |
| Gear Housing | 6-7 | Case, Gear, Cover Assy, Gear Case, Cover, LUB.OIL Pump, Valve, Relief |
| Flywheel Housing & Oil Sump | 8-9 | Housing, Flywheel, Cap, Flywheel Cover, Seal, Oil, Sump Assy, LUB.OIL |
| Cylinder Head & Bonnet | 10-11 | Head Assy, Cylinder, Valve, Intake, Exhaust, Shaft Assy, Rocker |
| Exhaust Manifold & Silencer | 12-13 | Manifold, Exhaust, Gasket, Silencer, Stud, Bolt |
| Camshaft & Driving Gear | 14-15 | Tappet, Rod, Push, Camshft Assy, Shaft, Idle Gear, Gear Assy, Idle |
| Crankshaft & Piston | 16-17 | Crankshaft Assy, Gear, Crankshaft, Flywheel Assy, Piston W/RING, Ring Set, Rod Assy, Connecting |
| Hydraulic Pump | 18-19 | Gear Assy, Pump, Ball Bearing, Gasket, Seal Washer, Bolt, Pump Assy, Hyd. Oil |
| Lub.Oil System | 20-21 | Dipstick, Filter, Oil Pipe, Switch, Joint Bolt, Seal Washer |
| Cooling Water System | 22-23 | Water Pump, V-Pulley, V-Belt, Cooling Fan, Thermostat, Temperature Sensor |
| Radiator & Air Cleaner | 24-25 | Radiator, Sub-Tank, Air Cleaner, Air Filter Element, Vacuum Valve, Indicator Kit |
| Fuel Injection Pump | 26-27 | Assembly, Plunger, Control Rack, Delivery Valve, Camshaft, Shim Pack |
| Governor | 28-30 | Case, Control Lever, Spring, Shim Set, Solenoid, Weight |
| Fuel Injection Valve | 31 | Injection Valve, Nozzle, Injection Pipe, Return Pipe, Check Valve, Clamp |
| Fuel Line | 32-33 | Fuel Strainer, Fuel Filter, Fuel Feed Pump, Water Separator, Fuel Pipe, Bend |
| Starting Motor | 34-35 | Starter Motor, Armature, Clutch, Housing, Field Coil, Switch |
| Generator | 36-37 | Alternator, Rotor Assy, Flame Assy, Drive, Holder, Brush, Regulator Assy, Relay |
| Gasket Set | 38-42 | Gasket, CYL.HEAD, O-Ring, F.I.PUMP, Seal, Valve Stem, Manifold |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Crankshaft Flange Bolt Thread/Pitch | M12xP1.25 | p. 17 |
| Lub.Oil System Pressure Switch Setting | 0.5kg | p. 21 |
| Radiator Hose Dimensions | 7x225mm | p. 25 |
| Fuel Injection Valve Bolt Thread/Length | M4x14mm | p. 31 |

















