Part of the Yanmar Parts Manuals.
An engine apart on the stand generates a parts list fast: eighteen cylinder head studs to inspect, a gasket set to price, a thermoswitch you suspect is not original. This catalog puts a Yanmar part number on every one of those pieces before you place the order.
It is Yanmar publication Y00R4440, the factory parts catalog for the 4TNE84-SA, 4TNE84-G1A and 4TNE84-G2A diesel engines. Twenty five pages of exploded views run the engine end to end: Cylinder Block, Cylinder Head & Bonnet, Camshaft & Driving Gear, Crankshaft & Piston, the lube oil and cooling water systems, then the fuel injection pump, governor, injection valves and filter, through to starting motor, generator and panel.
Ordering a bearing or seal by guesswork is how a rebuild stalls for two weeks waiting on the wrong part. Match the diagram, read the number, and everything is on the bench when the engine goes back together.
What's Inside This Parts Manual
| System | Pages |
|---|---|
| Cylinder Block | 1 |
| Gear Housing | 2 |
| Flywheel Housing & Oil Sump | 3 |
| Cylinder Head & Bonnet | 4-6 |
| Suction Manifold & Air Cleaner | 7 |
| Exhaust Manifold & Silencer | 8 |
| Camshaft & Driving Gear | 9 |
| Crankshaft & Piston | 10 |
| Lub.Oil System | 11 |
| Cooling Water System | 12-13 |
| Radiator | 14 |
| Fuel Injection Pump | 15-16 |
| Governor | 17 |
| Fuel Injection Valve | 18 |
| Fuel Filter | 19 |
| Engine Control Device | 20 |
| Starting Motor | 21-22 |
| Generator | 23 |
| Panel | 24 |
| Gasket Set & Tool | 25 |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Thermal switch activation temperature | 110 C | p. 13 |
| Cylinder Head Stud Quantity | 18 | p. 4 |
| Thermoswitch Activation Temperature | 110 C | p. 13 |
