Need the factory part numbers for your Yanmar 4TNV88-BPTBZ engine paired to a Takeuchi TB153FR mini-excavator? All 42 pages of this parts catalog map every component from the cylinder block and gear housing through the fuel injection pump, governor assembly, and generator. Exploded-view figures walk you through the crankshaft and piston group, camshaft and driving gear, cooling water system, starting motor, and the complete gasket set, each listing exact Yanmar part numbers and cross-references you can call in directly. Replacement pistons are listed at 0.25 O.S., with crankpin metal undersizes called out in the same figure so you order the right bearing on the first try. Quit chasing numbers across three supplier sheets. Bookmarks put you on the right figure in seconds, and the PDF opens on any device you carry into the shop.
What's Inside This Yanmar 4TNV88-BPTBZ, TB153FR Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Block | 7-8 | Cylinder Block Assy, Camshaft Bush, Thrust Metal, Cylinder Head Gasket, Main Bearing Set Repair Part, Main Metal Under-Sized Part, Thrust. Over-Sized Part Metal |
| Gear Housing | 9-10 | Gear Case Assy, Oil Seal, Gear Case Flange, Filler Cover, Hydraulic Oil Pump Cover, Knock Pipe, Blind Cover, Pipe |
| Flywheel Housing & Oil Sump | 11-12 | Flywheel Housing, Flywheel Cover Cap, Oil Sump Spacer, Lub. Oil Sump Assy, Oil Seal Case Assy, Oil Seal |
| Cylinder Head & Bonnet | 13 | Engine Lifter, Rocker Shaft Assy, Shaft, Rocker Arm Repair Part Support, Spring, Rocker Arm Assy, Valve Cap, Cylinder Head Assy |
| Suction Manifold & Air Cleaner | 14-16 | Breather Pipe, Int Manifold, Int.manofold Gasket, Intake Pipe, Aircleaner Bracket, Air Cleaner Assy, Outer Element, Cover Assy |
| Exhaust Manifold | 17 | Exhaust Manifold Gasket, Silencer Gasket, Bolt |
| Camshaft & Driving Gear | 18-20 | Tappet, Push Rod, Camshaft Assy, Thrust Metal, Camshaft Gear, Idle Gear Shaft, Idle Gear Assy, Idle Gear Repair Part Bush |
| Crankshaft & Piston | 21-22 | Crankshaft Assy, Crankshaft Gear, Crankshaft V-Pulley, Flywheel Assy, Ring Gear, Piston Assy, Piston Ring Set, Connecting Rod Assy |
| Lub.Oil System | 23-24 | Lub. Oil Pump Assy, Lub. Oil Pump Gasket, Lub. Oil Dipstick, Dipstick Guide, Gasket, Lub. Oil Pipe Assy, Filter Bracket Assy, Filter 80X80L |
| Cooling Water System | 25-26 | Water Pump Assy, Gasket, Plate, Joint, Thermo. Case Gasket, Round Gasket, V-Pulley, V-Belt |
| Fuel Injection Pump | 27 | Injection Pump Assy Governor Assy Isincorporated in This, Stopper, Dilevery Valve Assy, Spring, Delivery Holder, Lifter, Timer Set, Timer Cmp |
| Governor | 28-30 | Case Packing, Packing, Spring, Regulator Lever, Shaft Retainer, Case Cover, Stop Solenoid |
| Fuel Injection Valve | 31-32 | Fuel Injector, Nozzle Assy, Nozzle Holder Assy, Nozzle Spring, Nozzle Spring Seat, Stop Plate, Injection Pipe Retainer, Retainer |
| Fuel Line | 33-34 | Fuel Filter Bracket, Fuel Oil Filter, Fo-T Cmp, Tube, Fuel Oil Pipe, Fuel Pipe Protector, Fuel Pump, Separator Assy |
| Starting Motor | 35-36 | Starter, Pinion Shaft, Armature Assy, Field Coil Assy, Brush, Rear Cover, Brash Holder Assy, Brush Spring |
| Generator | 37-38 | Alternator, Rotor Assy, Bearing Cover, Drive Flame Assy, Plate, Rear Flame Assy, Pulley, Collar |
| Gasket Set | 39 | Cylinder Head Gasket, Valve Stem Seal, Nozzle Protector, Nozzle Seat, Cover Gasket, Int.manofold Gasket, Exhaust Manifold Gasket |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Piston Over-sized | 0.25 O.S. | p. 21 |
| Piston Ring Over-sized | 0.25 O.S. | p. 21 |
| Main Metal Undersize | 0.25 | p. 7 |
| Crankpin Metal Undersize | 0.25 | p. 21 |
| Piston Ring Oversize | 0.25 | p. 21 |
Yanmar 4TNV88-BPTBZ, TB153FR Common Problems This Manual Covers
Finding oversize piston and ring part numbers for Yanmar 4TNV88-BPTBZ rebuild after excessive blow-by and oil consumption p. 21
Check page 21 for the exploded view of the rotating assembly. Locate the specific part numbers for the 0.25 O.S. oversized pistons and piston rings. Verify your cylinder bore dimensions before ordering the replacement connecting rod assemblies and related hardware.
Manual Section: Crankshaft & PistonLocating correct undersize main bearing part numbers after experiencing low engine oil pressure and deep bottom-end knocking p. 7
Inspect the block assembly parts list on page 7. Find the replacement metal bearing set and identify the exact part number for the 0.25 undersize main bearings. Match the metal cap bolts in the parts index to ensure you order the correct replacement hardware.
Manual Section: Cylinder BlockIdentifying connecting rod crankpin bearing part numbers during a bottom-end rebuild following catastrophic rod knock p. 21
Review the parts diagram on page 21 to find the connecting rod assembly components. Select the correct crankpin metal bearing set, making sure to pull the part number for the 0.25 undersize option. Order the required joint bolts along with the bearings for proper reassembly.
Manual Section: Crankshaft & PistonFrequently Asked Questions
How do you fix finding oversize piston and ring part numbers for Yanmar 4TNV88-BPTBZ rebuild after excessive blow-by and oil consumption?
Check page 21 for the exploded view of the rotating assembly. Locate the specific part numbers for the 0.25 O.S. oversized pistons and piston rings. Verify your cylinder bore dimensions before ordering the replacement connecting rod assemblies and related hardware.
How do you fix locating correct undersize main bearing part numbers after experiencing low engine oil pressure and deep bottom-end knocking?
Inspect the block assembly parts list on page 7. Find the replacement metal bearing set and identify the exact part number for the 0.25 undersize main bearings. Match the metal cap bolts in the parts index to ensure you order the correct replacement hardware.
How do you fix identifying connecting rod crankpin bearing part numbers during a bottom-end rebuild following catastrophic rod knock?
Review the parts diagram on page 21 to find the connecting rod assembly components. Select the correct crankpin metal bearing set, making sure to pull the part number for the 0.25 undersize option. Order the required joint bolts along with the bearings for proper reassembly.
How quickly can I access this manual after buying?
This is a 42-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.
Can I print specific sections of this manual?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
Document Quality
This document is a scanned PDF with an OCR layer, allowing you to search and copy the full text. The text quality is generally crisp and easy to read throughout. Diagrams and illustrations are raster images, meaning they may pixelate at high zoom levels, but their labels and details are clear and readable. The pages are clean, free from scan artifacts, stains, or skewed content, with one notable blank "Memo" page included.
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