Part of the Yanmar Parts Manuals.
Spin an engine on the stand with the sump dropped and you meet a dozen small parts, plugs, metal caps, bushes, that all need names before anything gets ordered. This Yanmar parts catalog, publication Y00W2770, puts part numbers to every one of them on the 4TNE98-BQFLC, the diesel fitted to forklift applications.
Fifteen bookmarked sections break the engine down from Cylinder Block through Gasket Set: exploded views for the crankshaft and pistons, camshaft and driving gear, injection pump and injectors, cooling water system, starting motor, and generator. The 4TNE98 family carries several suffixes, and ordering off a lookalike catalog is how the wrong oil seal ends up on your bench, so having the exact BQFLC book matters.
At 21 pages and 0.78 MB, the PDF sits on a phone as easily as a bench laptop, so the diagrams are wherever the engine is.
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Cylinder Block | 4 | Cylinder Block Assy, Camshaft Bush, Thrust Bearing Assy, Main Bearing Set, Head Gasket |
| Gear Housing | 5 | Gearcase Cover Cmp, Oil Seal, Fuel Injection Pump Cover, Filler Cover, Lub. Oil Pump Assy, Hydraulic Oil Pump Cover, Bearing # |
| Flywheel Housing & Oil Sump | 6 | Flywheel Housing, Oil Seal, Oil Sump Assy, Pin |
| Cylinder Head & Bonnet | 7 | Engine Lifter, Cylinder Head Assy, Suction Valve, Exhaust Valve, Valve Spring, Spring Retainer, Valve Stem Seal, Valve Cap |
| Suction & Exhaust Manifold | 8 | Suction Manifold Gasket, Int Manifold, Exhaust Manifold, Gasket, Joint, Silencer Gasket |
| Camshaft & Driving Gear | 9 | Tappet, Push Rod, Camshaft Assy, Thrust Metal, Camshaft Gear, Idler Shaft, Idle Gear Assy, Idle Gear Bush |
| Crankshaft & Piston | 10 | Crankshaft Comp, Crankshaft Gear, Crankshaft V-pulley, Piston Assy, Ring Set, Connecting Rod Assy, Crankpin Metal Assy, Piston Pin Bush |
| Lub.Oil System | 11 | Dipstick, Dipstick Guide, Filter 80X80L, Lub. Oil Pipe Assy, Lub. Oil Switch, Pipe |
| Cooling Water System | 12 | Pulley, V-belt, Fan, Thermostat Gasket, Thermostat Cover, Gasket, Thermostat, Cooling Water Pump Gasket |
| Fuel Injection Pump | 13 | Retainer, Bracket Stay, Fuel Oil Pump Assy, Axel Wire Bracket |
| Fuel Injection Valve | 14 | Injection Valve Assy, Nozzle Assy, Retainer, Fuel Injection Pipe No, F.o.return Pipe Assy, Fuel Return Pipe, Return Gasket |
| Fuel Filter | 15 | Fuel Oi Filter Assy, Filter Body Assy, Level Sensor Assy, Filter Element Assy, Fuel Pipe, Fuel Oil Strainer |
| Starting Motor | 16 | Starter, Armature Assy, Field Coil Assy, Brush, Brash Holder Assy, Rear Cover, Magnetic Switch Assy, Shift Lever Set |
| Generator | 17 | Rotor Assy, Front Bracket Assy, Pulley, Rear Bracket, Spacer, Belt Ajuster, Qgs Controller |
| Gasket Set | 18-21 | 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 Motor Power | 2.3KW | p. 16 |
