Part of the Yanmar Parts Manuals.
An engine in pieces on a stand is only half a rebuild; the other half is knowing exactly which part number goes on the order. This Yanmar parts catalog exists for that moment. It covers the 4TNE98-NMH diesel built to the NACCO specification, publication 0CW10-G01400, issued in 2005.
Across 25 pages and 18 bookmarks it works through the engine section by section: Cylinder Block, Crankshaft & Piston, Camshaft & Driving Gear, Lub.Oil System, Cooling Water System, Fuel Injection Pump, Fuel Injection Valve, Fuel Filter, Starting Motor, Generator, and the complete Gasket Set. Service sizes are listed where they matter, including 0.25 mm undersize main bearings and 0.25 mm oversize piston rings.
Download the PDF, open the section you have apart on the bench, and order the correct bush, metal set, or gasket the first time instead of guessing across a parts counter.
Complete the set for your 4TNE98-NMH (Nacco)
- Repair Manual: Yanmar 4TNE92-NMH, 4TNE98-NMH Service Manual (incl. Wiring)
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Preface. | 2-3 | |
| Content. | 4 | |
| Cylinder Block | 5 | Cylinder Block Assy, Camshaft Bush, Main Bearing Set, Thrust Bearing Assy, Head Gasket |
| Gear Housing | 6 | Gear Case Cover Assy, Oil Seal, Fuel Injection Pump Cover, Filler Cover, Gear Case, Lub. Oil Pump Assy, Liquid Gasket |
| Oil Sump | 7 | Oil Sump Assy, Liquid Gasket, Oil Seal Case Assy, Oil Seal N Case Assy, Seal HTC95 |
| Cylinder Head & Bonnet | 8 | Engine Lifter, Cylinder Head Assy, Suction Valve, Exhaust Valve, Valve Spring, Spring Retainer, Valve Stem Seal, Valve Cap |
| Suction & Exhaust Manifold | 9 | Suction Manifold Gasket, Int Manifold, Exhaust Manifold, Gasket, Joint |
| Camshaft & Driving Gear | 10 | Tappet, Push Rod, Camshaft Assy, Thrust Metal, Camshaft Gear, Idler Shaft, Idle Gear Assy, Idle Gear Bush |
| Crankshaft & Piston | 11 | Crankshaft Comp, Crankshaft Gear, V-pulley, Piston Assy, Ring Set, Connecting Rod Assy, Piston Pin Bush, Crankpin Metal Assy |
| Lub.Oil System | 12 | Dipstick, Dipstick Guide, Filter 80X80L, Lub. Oil Pipe Assy, Lub. Oil Switch |
| Cooling Water System | 13 | Cooling Water Pump V-pulley, V-belt A: Inch, Thermostat Gasket, Thermostat Cover, Gasket, Thermostat, Cooling Water Pump Gasket, Cooling Water Pump Pipe |
| Fuel Injection Pump | 14-16 | Axel Wire Bracket, Retainer, Bracket Stay, Fuel Oil Pump Assy |
| Fuel Injection Valve | 17 | Injection Valve Assy, Nozzle Assy, Retainer, Fuel Injection Pipe No, F.o.return Pipe Assy, Fuel Return Pipe, Return Gasket |
| Fuel Filter | 18 | Fuel Oil Filter, Sub. Assy Body, Lebel Censor Assy, Element Kit, Filter, Fuel Pipe, Fuel Oil Strainer |
| Starting Motor | 19 | Starter, Armature Assy, Field Coil Assy, Brush, Brash Holder Assy, Rear Cover, Magnetic Switch Assy, Shift Lever Set |
| Generator | 20 | 12V-60A Generator, Pulley, Frame Assy, Plate, Rotator Assy, Bearing Cover, Flame, Brush Holder |
| Gasket Set | 21 | Head Gasket, Valve Stem Seal, Nozzle Protecter, Nozzle Gasket, Bonnet Gasket, Suction Manifold Gasket, Cooling Water Pump Gasket |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Starter Power | 2.3KW | p. 19 |
| V-Belt Size | A:45 inch | p. 13 |
| Starter Motor Power | 2.3 kW | p. 19 |
| Generator Voltage | 12 V | p. 20 |
| Generator Current | 60 A | p. 20 |
| Main Bearing Undersize | 0.25 mm | p. 11 |
| Piston Ring Set Oversize | 0.25 mm | p. 11 |
| Thrust Bearing Oversize | 0.25 mm | p. 11 |
