Need the factory exploded views for your Yanmar engine? This 82-page Parts Catalog covers the 4TNE88-ETBZ and 4TNV88-QTBZ engines as fitted in the Takeuchi TB53FR compact excavator (OEM #YOOF2161). Inside, you get highly detailed exploded diagrams for the cylinder block, fuel injection pump, and cooling system. Every illustration pairs directly with factory part numbers, interchangeability notes, and hardware dimensions so you order the exact replacement piece the first time. Verify the P-16.0 O-ring size and confirm the lubricating oil pressure switch is rated for 0.5KG before heading to the parts counter. Stop wasting days waiting on the wrong shipments. Grab this bookmarked download, search your part by name, and get the machine running again.
What's Inside This Yanmar 4TNE88-ETBZ, 4TNV88-QTBZ Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| How to Read This Parts Catalog (4TNE88-Etbz) | 1-3 | Reference Number, Level Indication, Change Mark, Interchangeability, Effective Machine Number |
| Cylinder Block (4TNE88-Etbz) | 6-7 | Block Assembly, Plugs, Metal Cap Bolts, Main Bearing Set, Thrust Metal, Cylinder Head Gasket |
| Gear Housing (4TNE88-Etbz) | 8-9 | Housing Assembly, Oil Seal, Studs, Covers, O-Rings, Bolts, Liquid Gasket |
| Flywheel Housing & Oil Sump (4TNE88-Etbz) | 10-11 | Flywheel Housing, Oil Sump, Parallel Pins, Bolts, O-Rings, Oil Seal Case |
| Cylinder Head & Bonnet (4TNE88-Etbz) | 12-13 | Head Assembly, Valve Guides, Valves, Valve Springs, Rocker Arm Shaft, Bonnet Assembly |
| Suction Manifold & Air Cleaner (4TNE88-Etbz) | 14-15 | Intake Manifold, Intake Pipe, Air Cleaner Assembly, Elements, Clamps, Gaskets |
| Exhaust Manifold & Silencer (4TNE88-Etbz) | 16-17 | Exhaust Manifold, Silencer, Gaskets, Bolts, Studs, Nuts |
| Camshaft & Driving Gear (4TNE88-Etbz) | 18-19 | Camshaft Assembly, Tappets, Push Rods, Gears, Idle Gear, Bolts |
| Crankshaft & Piston (4TNE88-Etbz) | 20-21 | Crankshaft Assembly, Pistons, Piston Rings, Connecting Rods, Main Bearings, Flywheel Assembly |
| LUB.OIL System (4TNE88-Etbz) | 22-23 | Lubricating Oil Pump, Oil Filter, Dipstick, Oil Supply Pipe, Gaskets, Bolts |
| Cooling Water System (4TNE88-Etbz) | 24-25 | Cooling Water Pump, Thermostat, Radiator, Fan, Hoses, Clamps, Gaskets |
| Fuel Injection Pump (4TNE88-Etbz) | 26-27 | Injection Pump Assembly, Plungers, Delivery Valves, O-Rings, Springs |
| Governor (4TNE88-Etbz) | 28-29 | Weight Assembly, Control Levers, Springs, Nuts, Washers, Solenoid |
| Fuel Injection Valve (4TNE88-Etbz) | 30-31 | Injection Valve Assembly, Nozzles, Nozzle Holders, Springs, Shims, Fuel Pipes |
| Fuel Line (4TNE88-Etbz) | 32-33 | Fuel Strainer, Fuel Filter, Feed Pump, Fuel Pipes, O-Rings, Clamps |
| Starting Motor (4TNE88-Etbz) | 34-35 | Starter Assembly, Armature, Field Coil, Brushes, Pinion, Clutch, Bearings |
| Generator (4TNE88-Etbz) | 36-37 | Assembly, Rotor, Bearings, Pulley, Adjuster, Bolts, Nuts, Safety Relay |
| Gasket Set (4TNE88-Etbz) | 38-39 | Cylinder Head Gasket, Valve Stem Seals, O-Rings, Liquid Gasket, Wrenches |
| How to Read This Parts Catalog (4TNV88-Qtbz) | 43-45 | Reference Number, Level Indication, Change Mark, Interchangeability, Effective Machine Number |
| Cylinder Block (4TNV88-Qtbz) | 48-49 | Block Assembly, Plugs, Metal Cap Bolts, Main Bearing Set, Thrust Metal, Cylinder Head Gasket |
| Gear Housing (4TNV88-Qtbz) | 50-51 | Housing Assembly, Oil Seal, Studs, Covers, O-Rings, Bolts, Liquid Gasket |
| Flywheel Housing & Oil Sump (4TNV88-Qtbz) | 52-53 | Flywheel Housing, Oil Sump, Parallel Pins, Bolts, O-Rings, Oil Seal Case |
| Cylinder Head & Bonnet (4TNV88-Qtbz) | 54-55 | Head Assembly, Valve Guides, Valves, Valve Springs, Rocker Arm Shaft, Bonnet Assembly |
| Suction Manifold & Air Cleaner (4TNV88-Qtbz) | 56-57 | Intake Manifold, Intake Pipe, Air Cleaner Assembly, Elements, Clamps, Gaskets |
| Exhaust Manifold & Silencer (4TNV88-Qtbz) | 58-59 | Exhaust Manifold, Silencer, Gaskets, Bolts, Studs, Nuts |
| Camshaft & Driving Gear (4TNV88-Qtbz) | 60-61 | Camshaft Assembly, Tappets, Push Rods, Gears, Idle Gear, Bolts |
| Crankshaft & Piston (4TNV88-Qtbz) | 62-63 | Crankshaft Assembly, Pistons, Piston Rings, Connecting Rods, Main Bearings, Flywheel Assembly |
| LUB.OIL System (4TNV88-Qtbz) | 64-65 | Lubricating Oil Pump, Oil Filter, Dipstick, Oil Supply Pipe, Gaskets, Bolts |
| Cooling Water System (4TNV88-Qtbz) | 66-67 | Cooling Water Pump, Thermostat, Radiator, Fan, Hoses, Clamps, Gaskets |
| Fuel Injection Pump (4TNV88-Qtbz) | 68-69 | Injection Pump Assembly, Plungers, Delivery Valves, O-Rings, Springs |
| Fuel Injection Valve (4TNV88-Qtbz) | 70-71 | Injection Valve Assembly, Nozzles, Nozzle Holders, Springs, Shims, Fuel Pipes |
| Fuel Line (4TNV88-Qtbz) | 72-73 | Fuel Strainer, Fuel Filter, Feed Pump, Fuel Pipes, O-Rings, Clamps |
| Starting Motor (4TNV88-Qtbz) | 74-75 | Starter Assembly, Armature, Field Coil, Brushes, Pinion, Clutch, Bearings |
| Generator (4TNV88-Qtbz) | 76-77 | Assembly, Rotor, Bearings, Pulley, Adjuster, Bolts, Nuts, Safety Relay |
| Gasket Set (4TNV88-Qtbz) | 78-79 | Cylinder Head Gasket, Valve Stem Seals, O-Rings, Liquid Gasket, Wrenches |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| 4TNE88-ETBZ | ||
| Main Metal Undersize | 0.25 | p. 7 |
| Thrust Metal Undersize | 0.25 | p. 7 |
| O-Ring Size (P-16.0) | 16.0 | p. 9 |
| Spring Pin Size | 6.0AX12 | p. 13 |
| All Models | ||
| Lubricating Oil Pressure Switch | 0.5KG | p. 23 |
| Camshaft Key Size | 7X14 | p. 19 |
| 4TNV88-QTBZ | ||
| Crankshaft Spring Pin Size | 3.0AX10 | p. 63 |
| Piston Pin Size | D26, L70 | p. 63 |
| Alternator Output | 40A | p. 77 |
Yanmar 4TNE88-ETBZ, 4TNV88-QTBZ Common Problems This Manual Covers
Yanmar 4TNE88-ETBZ engine runs rough on one cylinder with suspected bent pushrods or valve train damage p. 13
Inspect the cylinder head and bonnet parts breakdown on page 13 to identify replacement valve train components. Locate the exact part number for the 6.0AX12 spring pin and associated rocker arm shaft hardware. Verify compatibility using your effective machine number before ordering new pushrods or valve guides.
Manual Section: Cylinder Head & Bonnet (4TNE88-Etbz)High knocking sound requires a bottom end rebuild and replacement of pistons and pins p. 63
Review the crankshaft and piston diagram on page 63 to locate correct bottom end rebuild components. Find the specific part numbers for the D26, L70 piston pins and connecting rod bearings. Match the parts to your exact engine serial number to ensure correct fitment during reassembly.
Manual Section: Crankshaft & Piston (4TNV88-Qtbz)Electronic control warning illuminates with a sudden shutdown due to a faulty oil pressure switch p. 23
Locate the lubricating oil system diagram on page 23 to find the correct sensor replacement. Identify the part number for the 0.5KG lubricating oil pressure switch. Check the accompanying wiring harness connectors and gaskets in the parts list to complete the sensor replacement successfully.
Manual Section: LUB.OIL System (4TNE88-Etbz)Battery drains quickly during operation and engine eventually dies from lack of charging voltage p. 77
Examine the generator parts breakdown on page 77 to find the correct charging system components. Identify the replacement part number for the 40A output alternator assembly. Confirm you are ordering the correct safety relay and adjuster hardware listed in the index for your specific machine.
Manual Section: Generator (4TNV88-Qtbz)Frequently Asked Questions
What are the replacement specifications for pushrods?
For replacement, use the pushrod part number 129150-14400. A quantity of 8 pushrods is required for the engine. This information can be found in the CAMSHAFT & DRIVING GEAR section.
What are the replacement specifications for valve cover gasket?
The replacement specification for the valve cover gasket is part number 129601-11310. One gasket is required for the engine. Refer to the CYLINDER HEAD & BONNET section for this part.
How do you fix yanmar 4TNE88-ETBZ engine runs rough on one cylinder with suspected bent pushrods or valve train damage?
Inspect the cylinder head and bonnet parts breakdown on page 13 to identify replacement valve train components. Locate the exact part number for the 6.0AX12 spring pin and associated rocker arm shaft hardware. Verify compatibility using your effective machine number before ordering new pushrods or valve guides.
How do you fix high knocking sound requires a bottom end rebuild and replacement of pistons and pins?
Review the crankshaft and piston diagram on page 63 to locate correct bottom end rebuild components. Find the specific part numbers for the D26, L70 piston pins and connecting rod bearings. Match the parts to your exact engine serial number to ensure correct fitment during reassembly.
How quickly can I access this manual after buying?
Instant PDF download. You get the full 82-page searchable Parts Catalog immediately after payment. Open it on your laptop, tablet, or phone right in the shop.
Is this Yanmar 4TNE88-ETBZ & variants Parts Catalog printable?
Yes. The PDF has no DRM restrictions, so print any page or section you need for your shop. Works with any standard printer.
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