Part of the Yanmar Parts Manuals.
Need the factory part numbers for your 1997-2002 Yanmar B50-2B or B37-2(EP) crawler excavator? This 147-page parts catalog (OEM #Y00S3671) is the official illustrated reference for both machines. Open it and you get exploded assembly views across every major system: engine mounts, radiator, fuel line, hydraulic pump, control valves, drive and turning motors, swivel joint, boom and arm cylinders, cab and canopy fittings, and the full hydraulic piping layout from tank through valve to motor. Each view maps individual components to factory part numbers with cross-references so you confirm the right piece before you order. The cabin electrical section nails down specifics like the 24V-6W work lamp bulb and 5A cartridge fuse rating. Wrong part delivered is a week wasted. Bookmarked by system; search any assembly name and pull the correct part number in seconds.
Other edition of this manual
- Yanmar B50-2B Parts Catalog $29.99
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Fuel System | Air Cleaner, Accelerator, Fuel Tank & Fuel Line | |
| Cooling System | Radiator & Mount | |
| Engine | Muffler, Frame & Turning Bearing, Hyd. Oil Pump & Joint | |
| Electrical System | Battery, Work Lamp | |
| Hydraulics & 3-Point Hitch | Boom Cylinder, Arm Cylinder, Bucket Cylinder, Swing Cylinder, Blade Cylinder, Control Valve, Remote Control Valve, Low-High Valve, P.T.O. Valve | |
| Body & Operator Station | Frame Cover, Step & Instrument Panel, Seat Mount, Bonnet, Cabin, Cabin Door, Canopy, Hyd. Oil Tank, Boom & Boom Bracket | |
| Decals & Accessories | Label | |
| Other Components | Engine Mount, Electric Part, Heater & Defroster, Roller & Adjust, Crawler, Control Equipment, Control Equip., Driving Motor, Turning Motor, Swivel Joint, Control V, Hyd. Oil Piping, P.T.O. Hyd. Oil Piping, Control Piping, Greasing, Arm & Bucket Link |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Wiring label text | LABEL SET | p. 12 |
| Fuse (Cartridge) Rating | 5A | p. 30 |
| Bulb (Work Lamp) Rating | 24V-6W | p. 30 |
| Bulb (Room Lamp) Rating | 12V-5W | p. 33 |




















