Part of the Yanmar Parts Manuals.
Strip the injection pump off a Yanmar 4TNV88-QTBZ and you are looking at dozens of small internals (delivery valves, timer set, damper assembly) that all have to go back exactly as cataloged. This Yanmar parts catalog, publication P-TB53FEBB, gives you the exploded views and part numbers to order every one of them correctly, whether the engine is on a stand or still installed.
It covers the 4TNV88-QTBZ in its TB53FR specification, serial prefixes E/#00155, E/#00185, E/#00200 and E/#00156, with the 4JH-DT, 4JH-DTZA, 4JH-DTZ, 4JH-DTZY and 4JH-DTZP listed in the same publication. Forty-four pages walk the engine figure by figure: cylinder block, head, crankshaft and piston, camshaft, cooling, lubrication, the full fuel system down to injection pump inner parts, starter, alternator and a complete gasket set.
Match part numbers to your serial prefix before you order, and the rebuild goes back together without a second parts run.
What's Inside This Yanmar 4TNV88-QTBZ (TB53FR) 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 Gasket, Silencer |
| 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, Filter 80X80L, 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-Belt, Cooling Fan |
| Fuel Injection Pump | 26-27 | Fuel Injection Pump Assy, Fip Support, Stop Solenoid, Bolt |
| Fuel Injection Pump (Inner Parts) | 28-31 | Joint, Stopper, Dilevery Valve Assy, Spring, Delivery Holder, Cooling Water Joint, Lifter, Timer Set |
| 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 | Cylinder Head Gasket, Valve Stem Seal, Nozzle Protector, Nozzle Seat, Cover Gasket, Exhaust Manifold Gasket, Thermo. Case Gasket |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Oil Pressure Switch Activation | 0.5 KG | p. 23 |
Yanmar 4TNV88-QTBZ (TB53FR) Common Problems This Manual Covers
Hard starting after the engine sits
Air in the fuel or a clogged filter is the usual culprit on a diesel that cranks but will not light. The Fuel Line figure identifies the fuel filter, separator assembly, fuel pump and every pipe assembly, so you can replace the whole delivery path in one order.
Manual Section: Fuel Line p. 34Rough running and smoke under load
Worn nozzles dribble instead of atomizing, and the engine answers with smoke and uneven power. If pop testing shows a lazy injector, the Fuel Injection Valve figure gives the nozzle assembly, holder assembly and injection and return pipe numbers for a fresh set.
Manual Section: Fuel Injection Valve p. 32Engine will not shut off
When the engine keeps running with the key off, the stop solenoid on the injection pump is the first suspect. The Fuel Injection Pump figure lists the solenoid, pump assembly and support so you can order the correct replacement for your serial prefix.
Manual Section: Fuel Injection Pump p. 26Overheating and coolant loss
A stuck thermostat, tired water pump or slipping V-belt will cook any diesel. The Cooling Water System figure covers the water pump assembly, thermostat, fan, V-belt, pipe assemblies and sub-tank, so one order handles the whole cooling side.
Manual Section: Cooling Water System p. 24Slow cranking or dead starter
Starters on these engines fail at the pinion and brushes long before the whole unit is scrap. The Starting Motor figure breaks the starter down to pinion, shaft, armature assembly and field coil level, so you can rebuild it instead of buying complete.
Manual Section: Starting Motor p. 36Low oil pressure warning
A flickering oil light is often the switch or a starved filter rather than worn bearings. The Lub.Oil System figure identifies the dipstick, oil pipe assemblies, filter, filter bracket assembly and pressure switch so you can rule out the cheap parts first.
Manual Section: Lub.Oil System p. 22Leaks after top-end work
Reusing old seals is how a fresh head job starts weeping a week later. The Gasket Set figure lists the cylinder head gasket, valve stem seals, injection pump O-rings and exhaust manifold gasket, so every sealing surface gets new material before reassembly.
Manual Section: Gasket Set p. 40Frequently Asked Questions
Which engine models does this parts catalog cover?
It is Yanmar publication P-TB53FEBB for the 4TNV88-QTBZ in its TB53FR specification, serial prefixes E/#00155, E/#00185, E/#00200 and E/#00156. The 4JH-DT, 4JH-DTZA, 4JH-DTZ, 4JH-DTZY and 4JH-DTZP are covered in the same publication. Check your engine plate against these before buying.
Is this a service manual with torque specs and clearances?
No. This is a parts catalog: exploded views and part numbers for every figure from the cylinder block through the gasket set. Use it to identify and order parts by number. Valve lash, cylinder head torque sequences and bearing clearances belong to the separate service manual.
Does it break down the injection pump internals?
Yes. Beyond the main Fuel Injection Pump figure, a dedicated Fuel Injection Pump (Inner Parts) section covers the delivery valve assemblies, timer set, piston and damper assembly, so you can order individual internals by number instead of a complete pump. p. 28
Can I order full rebuild gaskets from this catalog?
Yes. The Gasket Set figure lists the cylinder head gasket, valve stem seals, injection pump O-rings and exhaust manifold gasket with part numbers, so every seal is on hand before the head goes back on. p. 40
What do I get after purchasing this Yanmar 4TNV88-QTBZ & variants manual?
This is a 44-page searchable PDF ready for immediate download. Works on any device, so pull it up on your phone while you're under the hood. No shipping, no waiting.
Is this Yanmar 4TNV88-QTBZ & variants Parts Catalog printable?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
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