Part of the Yanmar Parts Manuals.
Looking for exact replacement numbers for your engine? This 43-page Yanmar 3TNV70-STB parts catalog PDF breaks down every component from the cylinder block to the fuel injection pump. You get highly detailed exploded illustrations paired with complete factory parts lists for the entire cooling, electrical, and drivetrain assemblies. Open any section to identify interchangeability marks, hardware dimensions, and correct part numbers for complex systems like the governor linkage or the exhaust manifold. Verify you are ordering the exact 40A alternator assembly, and confirm the replacement radiator cap matches the factory 0.9 KG/CM2 pressure rating before placing an order. Grab this bookmarked file, pull it up on your phone at the parts counter, and get the exact match every time.
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What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| How to Read Parts Catalog | 1-4 | Parts Catalog Structure, Reference Number, Level Indication, Interchangeability Mark, Effective Machine Number |
| Cylinder Block | 6-7 | Block Assembly, Plugs, Bolts, Camshaft Bush, Main Bearing Set |
| Gear Housing | 8-9 | Gear Case, Oil Seal, Pump Cover, Inner Rotor, Outer Rotor |
| Flywheel Housing & Oil Sump | 10-11 | Flywheel Housing, Oil Sump, Parallel Pins, Bolts, Oil Seal |
| Cylinder Head & Bonnet | 12-13 | Head Assembly, Valves, Valve Springs, Rocker Arm, Breather, Glow Plugs |
| Air Cleaner | 14-15 | Air Intake Hose, Cleaner Assembly, Element, Unloader Valve, Clamps |
| Exhaust Manifold & Silencer | 16-17 | Exhaust Manifold, Gaskets, Silencer, Studs, Bolts |
| 18-19 |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Radiator Cap Pressure | 0.9 KG/CM2 | p. 25 |
| Alternator Output Current | 40A | p. 37 |
