Part of the Yanmar Parts Manuals.
With a 4TNV88-QTB stripped on the stand, the difference between a clean reassembly and a second teardown is usually one wrong part number. This Yanmar parts catalog, publication P-TB145EBB for TB145 applications, gives you the exploded views and factory part numbers for the whole engine, from the cylinder block and crankshaft through the injection pump internals and governor, so every bearing, gasket, and O-ring you order matches what came off.
It covers the 4TNV88-QTB in both cab and canopy (QTB1) configurations, from engine serial number 14513261 onward. Eighteen illustrated sections run through 44 pages: cylinder head and valves, camshaft and gears, lubricating oil and cooling water systems, fuel injection pump inner parts, injectors, fuel line, starter, alternator, and the complete gasket set.
The PDF is bookmarked and downloads instantly, so it is on your phone or laptop at the bench, the parts counter, or wherever the engine sits.
Other edition of this manual
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Block | 6-7 | Cylinder Block Assy, Camshaft Bush, Main Bearing Set Repair Part, Thrust Metal, Cylinder Head Gasket, Spacer, Main Metal Under-Sized Part, Thrust. Over-Sized Part Metal |
| Gear Housing | 8-9 | Gear Case Assy, Oil Seal, Pump Cover Assy, Lub. Oil Pump Cover, Relief Valve, Spring, Gear Case Frange, Filler Cover |
| Flywheel Housing & Oil Sump | 10-11 | Flywheel Housing, Flywheel Cover Cap, Oil Sump Spacer, Lub. Oil Sump Assy, Oil Seal Case Assy, Oil Seal, Liquid Optional Part Gasket |
| Cylinder Head & Bonnet | 12-13 | Cylinder Hed Assy, Valve Repair Part Guide, Intake Valve, Exhaust Valve, Valve Spring, Spring Retainer, Valve Stem Seal, Valve Cap |
| Suction Manifold & Air Cleaner | 14-15 | Breather Pipe, Int Manifold, Int.manofold Gasket, Air Heater, Air Heater Gasket, Gasket, Bend, Intake Pipe |
| Exhaust Manifold & Silencer | 16-17 | Exhaust Manifold, Exhaust Manifold Gasket, Silencer, Silencer Gasket, Silencer Pipe |
| Camshaft & Driving Gear | 18-19 | Tappet, Push Rod, Camshaft Assy, Thrust Metal, Camshaft Gear, Idle Gear Shaft, Idle Gear Assy, Idle Gear Repair Part Bush |
| Crankshaft & Piston | 20-21 | Crankshaft Assy, Crankshaft Gear, Crankshaft V-Pulley, Flywheel Assy, Ring Gear, Piston Assy, Piston Ring Set, Connecting Rod Assy |
| Lub.Oil System | 22-23 | Lub. Oil Dipstick, Dipstick Guide, Gasket, Lub. Oil Pipe Assy, Oil Cooler Assy, Filter Bracket Assy, Lub. Oil Switch, Joint Bolt Assy |
| Cooling Water System | 24-25 | Water Pump Assy, Gasket, Plate, Joint, Thermo. Case Gasket, V-Pulley, V-Pulley S, V-Belt |
| Fuel Injection Pump | 26-27 | Fuel Injection Pump Assy, Fip Support, Stop Solenoid, Bolt |
| Fuel Injection Pump (Inner Parts) | 28-29 | Joint, Stopper, Dilevery Valve Assy, Spring, Delivery Holder, Cooling Water Joint, Lifter, Timer Set |
| Governor (Inner Parts) | 30-31 | Case Packing, Packing, Spring, Regulator Lever, Stop Solenoid, Case Cover |
| Fuel Injection Valve | 32-33 | Fuel Injector, Nozzle Assy, Nozzle Holder Assy, Nozzle Spring, Nozzle Spring Seat, Stop Plate, Injection Pipe Retainer, Retainer |
| Fuel Line | 34-35 | Filter Bracket, Fuel Filter, Fuel Oil Pipe Assy, Fuel Pipe, Fuel Pump, Separator Assy, Retaining Ring, Element |
| Starting Motor | 36-37 | Starter, Pinion Shaft, Armature Assy, Field Coil Assy, Brush, Rear Cover, Brash Holder Assy, Brush Spring |
| Generator | 38-39 | Belt Adjuster, Alternator, Rotor Assy, Bearing Cover, Drive Flame Assy, Plate, Rear Flame Assy, Pulley |
| Gasket Set | 40-44 | Gasket Set Optional Part, Cylinder Head Gasket, Valve Stem Seal, Nozzle Protector, Nozzle Seat, Cover Gasket, Gasket, Exhaust Manifold Gasket |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Fuel Pipe Dimensions | D13 x L400 | p. 35 |
| Parallel Pin Dimensions | 8x16 mm | p. 11 |
| Spring Pin Dimensions | 6x12 mm | p. 13 |
