![Yanmar B50, B50-1, B50-C[R], 4TN84L-RBD parts list for exhaust pipe, muffler flange, gaskets, and air intake components.](https://youfixthis.com/wp-content/uploads/2026/06/yanmar-b50-b50-1-b50-c-r-crawler-backhoe-parts-catalog-000y00s3091-engine-parts-13-300x300.webp)
Part of the Yanmar Parts Manuals.
Need OEM part numbers for your Yanmar 4TNV98-ZQTB engine? This 44-page parts catalog covers every assembly in the P-TB175ECD, from cylinder block through the electronic control unit. Inside, exploded-view diagrams walk through the full engine: crankshaft and piston, fuel injection pump with delivery valves, governor, starting motor with pinion and field coil detail, and a complete gasket set listing every O-ring, packing, and seal by part number. You get clear cross-references for the nozzle holder, shim pack, and injector pipe assemblies in the fuel injection valve section, plus EGR valve and silencer clamp detail in the exhaust manifold figure. Pull the exact ECU shield collar part number from Fig. 17 without guessing at aftermarket substitutes. Stop ordering the wrong part. Bookmarked by assembly, search any component name and land on the right exploded view in seconds.
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Block | 6-7 | Block Assy, Cylinder, Plug, Bolt, Metal Cap, Bush, Camshaft, Main Bearing Set |
| Gear Housing | 8-9 | Housing, Gears, Pump Assy, LUB.OIL, O-Ring, Packing, Cover, Seal |
| Flywheel Housing & Oil Sump | 10-11 | Housing, Flywheel, Seal, Oil, Pan Assy, Lub. Oil, Drain Plug, Bolt |
| Cylinder Head & Bonnet | 12-13 | Head Assy, Cylinder, Valve, Spring, Retainer, Rocker Arm, Bonnet Assy, Gasket |
| Suction Manifold & Air Cleaner | 14-15 | Manifold Cmp, Intake, Air Cleaner, Gasket, Heater, Pipe, Element |
| Exhaust Manifold & Silencer | 16-17 | Manifold Assy, Exh, Silencer, Gasket, EGR Valve, Clamp, Bolt |
| Camshaft & Driving Gear | 18-19 | Camshft Assy, Gear, Tappet, Push Rod, Bush, Bolt |
| Crankshaft & Piston | 20-21 | Crankshaft Comp, Piston Assy, Ring Set, Connecting Rod, Flywheel, Gear |
| Lub. Oil System | 22-23 | Dipstic, Lub Oil, Filter, Pipe, LUB.OIL, Switch, Joint |
| Cooling Water System | 24-25 | Pump Assy, Water, V-Belt, Fan, Cooling, Thermostat, Subtank |
| Fuel Injection Pump | 26-27 | Injecton Pump Assy, Setting, Delivery, Timer Set, Valve, Solenoide, Pump Assy, Feed |
| Governor | 28-29 | Packing, Case, Sensor, Gear, Plug, O-Ring |
| Fuel Injection Valve | 30-31 | Fuel Injector, Nozzle Assy, Holder Assy, Spring, Nozzle, Shim Pack, Pipe Assy, Injection |
| Fuel Line | 32-33 | Pipe Assy, F.O.RETURN, Fuel Pump, Filter Assy, Fuel, Sensor Assy, Level, Element Assy |
| Starting Motor | 34-35 | Starter, Armature Assy, Coil Assy, Field, Brush, Switch Assy, Magnetic, Pinion Assy |
| Generator | 36-37 | Alternator, Rotor Assy, Ball Bearing, Bracket, Front, Strar, Relay |
| Electronic Control Unit (ECU) | 38-39 | ECU Cmp, SHIELD.ECU, Collar, Controller, Rubber, Cushion, Screw |
| Gasket Set | 40-44 | Gasket, O-Ring, Packing, Seal, Seal Washer |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Yanmar 4TNV98-ZQTB | ||
| Takeuchi P-TB175ECD | ||
| Parts Catalog | ||
| 44 | ||
| YOOF2161 | ||
| Fuel Filter Element (p.33), Nozzle/Holder/Shim Pack (p.31), Gasket Set (p.40) |
