Part of the Yanmar Parts Manuals.
Got a parts sourcing problem on your Yanmar TL230 Track Loader? This 46-page Yanmar 4TNV98-ZNTBL, TL230, P-TL230EAC parts catalog lays out the complete factory parts structure for the engine and all its systems. Inside: a full set of exploded-view diagrams, each paired with a numbered parts list covering cylinder block, gear housing, flywheel housing, cylinder head, camshaft, crankshaft, fuel injection pump, governor, fuel injectors, starting motor, alternator, ECU, and gasket sets. Every diagram shows each component with its factory part number, so you can identify exactly what you're ordering before you pick up the phone. For bearing sourcing, the catalog specifies main bearing undersize at 0.25 and thrust bearing oversize at 0.25; those are the variants you need to name when placing the order. Stop guessing part numbers from memory. Bookmarked by system, so you jump straight to the right section, pull the number, and get back to work.
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Block | 6-7 | Cylinder Block Assy, Camshaft Bush, Thrust Bearing Assy, Cylinder Head Gasket, Main Bearing Set Repair Part, Main Bearing Under-Sized Part, Thrust . Over-Sized Part Bearing |
| Gear Housing | 8-9 | Gear Case, Lub. Oil Pump Assy, Packing, Oil Filler Adaptor, Pipe, Filler Cover, Fuel Injection Pump Cover, Fuel Injection Pump S Cover |
| Flywheel Housing & Oil Sump | 10-11 | Flywheel Housing, Flywheel Cover Cap, Oil Seal, Oil Sump Assy |
| Cylinder Head & Bonnet | 12-13 | Engine Lifter, Valve Bridge Seat a, Cylinder Head Assy, Valve, Valve Spring, Spring Retainer, Valve Stem Seal, Valve Bridge Assy |
| Suction Manifold & Air Cleaner | 14-15 | Packing, Intake Manifold Cmp, Intake Manifold, Gasket, Air Heater, Bend, Air Cleaner Assy, Housing Bottom |
| Exhaust Manifold & Silencer | 16-17 | Exh Manifold Assy, Exhaust Manifold, Gasket, Silencer Gasket, Silencer, Silencer Stay, Pipe Cmp, EGR Pipe Gasket |
| Camshaft & Driving Gear | 18-19 | Tappet, Push Rod, Camshaft Assy, Thrust Metal, Camshaft Gear, Shaft, Idle Gear Assy, Idle Gear Repair Part Bush |
| Crankshaft & Piston | 20-21 | Crankshaft Comp, Crankshaft Gear, Crankshaft V-Pulley, Flywheel Assy, Ring Gear, Piston Assy, Piston Ring Set, Connecting Rod Assy |
| Lub.Oil System | 22-23 | Dipstick, Dipstick S, Lub. Oil Case Assy, Adapter, Cover, Spacer, Filter 80X80L, Lub.oi Bracket Assy |
| Cooling Water System | 24-25 | Water Pump Assy, Cw-P Gasket, Cooling Water Pump Pulley, V-Belt, Fan, Fan Spacer, Thermostat Case Assy, Thermometer |
| Fuel Injection Pump | 26-27 | Flange, Stopper, Delivery W Setting, Spring, Lifter, Timer Set, Timer Cmp, Backup Ring |
| Governor | 28-30 | Case Packing, Sensor, Sensor Gear, Round Gasket |
| Fuel Injection Valve | 31 | Fuel Injector, Nozzle Assy, Nozzle Holder Assy, Nozzle Spring, Nozzle Spring Seat, Stop Plate, Pipe Seal, Bracket |
| Fuel Line | 32-33 | Fuel Filter Z Bracket, Fuel Oil Z Filter, Fuel Z Pipe Assy, Fuel Pipe Z Protector, Fuel Oil Z Pipe, Tube Z, F.o.return Pipe Assy, Fuel Return Packing |
| Starting Motor | 34-35 | 3KW Starter 12V, Armature Assy, Field Coil Assy, Brush, Rear Cover, Brush Holder, Brush Spring, Magnetic Switch Assy |
| Generator | 36-37 | Alternator, Rotor Assy, Bearing Cover, Drive Flame Assy, Plate, Rear Flame Assy, Pulley, Collar |
| Electronic Control Unit (ECU) | 38-39 | ECU Shield, Controller Collar, Cushion Rubber, Collar |
| Gasket Set | 40-41 | Cylinder Head Gasket, Packing, Valve Stem Seal, Nozzle Protector, Nozzle Seat, Bonnet Gasket, Gasket, Silencer Gasket |
| Loose Part | 42-46 | Type C Relay Ca, Accel Sensor Assy, Return Spring, Body, Support, Shaft Asy, Accel Sensor Lever, Power Relay |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Main Bearing Undersize | 0.25 | p. 7 |
| Thrust Bearing Oversize | 0.25 | p. 7 |
| Pin Bearing Undersize | 0.25 | p. 21 |
| V-Belt Quantity | 1 | p. 25 |
| Fuel Injector Quantity | 4 | p. 31 |
| Brush (+) Quantity (Starting Motor) | 2 | p. 35 |
| Fuel Return Packing Quantity | 5 | p. 41 |

















