Part of the Yanmar Parts Manuals.
Tired of guessing at part numbers? This 38-page Yanmar 4TNV98-VTBZC, TB175C parts catalog PDF maps out the complete engine architecture for your heavy equipment. You get highly detailed exploded diagrams covering everything from the cylinder head and bonnet assembly to the governor and fuel injection pump setup. Open the cooling water system section to see a visual breakdown of the water pump, fan belt, cooling fan, and thermostat components. Pinpoint the exact M22 drain plug for the flywheel housing oil sump, or pull the correct factory part numbers for the main bearing set before you tear down the block. Ordering the wrong component kills your shop schedule. Download this bookmarked file right to your tablet, find your part fast, and get the exact replacement ordered today.
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Block | 5-6 | Block Assy, Cylinder, Main Bearing Set, Bearing Assy, Thrust, Bolt, Head, Gasket |
| Gear Housing | 7-8 | Housing Assy, Cover, G, Housing, Gears, Pump Assy, Lub. Oil, Seal |
| Flywheel Housing & Oil Sump | 9-10 | Housing, Flywheel, Pan Assy, Lub. Oil, Seal, Oil, Drain Plug M22, GASKET.LIQUID |
| Cylinder Head & Bonnet | 11-12 | Head Assy, Cylinder, Valve (Exh), Valve Spring, Rocker Arm, Bonnet Assy, GASKET.LIQUID |
| Suction Manifold & Air Cleaner | 13-14 | Manifold, Air Intake, Packing (Int. Manifold), Heater, Air, Cleaner Assy, Element |
| Exhaust Manifold & Silencer | 15-16 | Manifold, Exhaust, Gasket, Silencer, Clamp Assy, Bolt |
| Camshaft & Driving Gear | 17-18 | Camshft Assy, Tappet, Push Rod, Gear, Camshaft, Gear Assy, Idle |
| Crankshaft & Piston | 19-20 | Crankshaft Comp, Piston W/RING, Ring Set, Piston, Rod Assy, Connecting, Flywheel Assy, Metal Assy |
| Lub. Oil System | 21-22 | Dipstick, Oil Pipes, Oil Pressure Switch, Oil Filter, Oil Pump |
| Cooling Water System | 23-24 | Water Pump, Fan Belt, Cooling Fan, Thermostat, Water Temperature Sensor, Sub-Tank |
| Fuel Injection Pump | 25-26 | Assembly, Delivery Valve, Timer, Feed Pump, Accumulator, Plugs |
| Governor | 27-28 | Case, Regulator Lever, Idle Limit Bolt, Stop Solenoid, Springs, O-Rings |
| Fuel Injection Valve | 29-38 | Injection Valve Assembly, Nozzle Assembly, Nozzle Holder, Nozzle Spring, Shim Pack, Injection Pipes |

















