Part of the Yanmar Parts Manuals.
The plunger and barrel at the heart of the fuel injection pump are the fussiest parts on a 4TN84TL-RBS, and this catalog breaks that pump down to the barrel locking pin starting on page 26, so a rebuild order comes back complete the first time.
Yanmar issued the book as publication Y00B5001 for the 4TN84TL-RBS and the 4TN84TL-RBS (B50W): 43 pages in English, delivered as a PDF download. Every system on the engine is here, from the cylinder block, crankshaft and piston, and camshaft through the turbocharger, governor, cooling water system, lubrication circuit, starting motor, and generator, each with Yanmar part numbers and quantities.
When the engine is in pieces on a stand and there is no dealer counter to lean on, this is how you put a correct number on every gasket, O-ring, and seal washer before anything goes back together.
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Flywheel Housing & Lub.Oil Sump | 1-8 | Cylinder Block, Engine 4TN84TL-RBS, Gear Housing |
| Camshaft & Driving Gear | 9-16 | Suc.Manifold & Air Cleaner, Cylinder Head & Bonnet, Exh. Manifold & Silencer |
| Lub. Oil Pipe | 17-24 | Crankshaft & Piston, Turbocharger, Lub. Oil System |
| Fuel Injection Pump | 25-28 | Cooling Water System |
| Fuel Pipe | 29-33 | Fuel Injection Valve |
| Engine Stop Device | 34-37 | Governor |
| Generator | 38-41 | Starting Motor |
| Gasket Set (Optional) & Tool | 42-43 |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Pipe Dimension | 16x950 mm | p. 8 |
| Filter Size | 80x80L mm | p. 20 |

















