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.
What's Inside This Yanmar B50-2B, B37-2(EP) 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 |
Yanmar B50-2B, B37-2(EP) Common Problems This Manual Covers
Yanmar B50-2B missing warning decals and unreadable start switch indicator labels on the operator dashboard p. 12
Inspect the dashboard area for degraded decals. Verify exact replacement text using the label diagram on page 12. Order the LABEL, START SWITCH or the complete LABEL SET to restore accurate control identification. Replace any burnt out 12V-5W room lamp bulbs using the reference on page 33.
Manual Section: Picturesque Indx(3) Figure 01-12Cannot identify correct replacement part numbers for leaking swivel joint and control valve assemblies p. 3
Check the hydraulic section index on page 3 to locate your specific valve assembly. Match your visual components to the exploded views. Verify the exact seal kits before sourcing rebuilt replacements. Match exterior replacement panels with Yanmar New Permanent Yellow paint using the list on page 5.
Manual Section: Picturesque Indx(2) Hydraulic SectionBlown cartridge fuses in the main electrical box with missing amperage rating covers p. 30
Inspect the main electrical box and remove the damaged components. Match the circuit to the correct cartridge fuse rating on page 30. Install exact 5A replacement fuses to prevent harness damage. Order exact replacement covers using the main parts index on page 2.
Manual Section: Picturesque Indx(1) Main PartsHidden deterioration on engine bay cooling lines and unreadable oil water indicator decals p. 12
Remove the engine covers to access the cooling system. Match worn radiator hoses to the exploded views in the parts catalog. Order the specific LABEL, OIL/WATER decal shown on page 12. Verify all 24V-6W work lamp bulbs on page 30 while inspecting the bay.
Manual Section: Picturesque Indx(3) Figure 01-12Frequently Asked Questions
How do you fix yanmar B50-2B missing warning decals and unreadable start switch indicator labels on the operator dashboard?
Inspect the dashboard area for degraded decals. Verify exact replacement text using the label diagram on page 12. Order the LABEL, START SWITCH or the complete LABEL SET to restore accurate control identification. Replace any burnt out 12V-5W room lamp bulbs using the reference on page 33.
How do you fix cannot identify correct replacement part numbers for leaking swivel joint and control valve assemblies?
Check the hydraulic section index on page 3 to locate your specific valve assembly. Match your visual components to the exploded views. Verify the exact seal kits before sourcing rebuilt replacements. Match exterior replacement panels with Yanmar New Permanent Yellow paint using the list on page 5.
How do you fix blown cartridge fuses in the main electrical box with missing amperage rating covers?
Inspect the main electrical box and remove the damaged components. Match the circuit to the correct cartridge fuse rating on page 30. Install exact 5A replacement fuses to prevent harness damage. Order exact replacement covers using the main parts index on page 2.
How do you fix hidden deterioration on engine bay cooling lines and unreadable oil water indicator decals?
Remove the engine covers to access the cooling system. Match worn radiator hoses to the exploded views in the parts catalog. Order the specific LABEL, OIL/WATER decal shown on page 12. Verify all 24V-6W work lamp bulbs on page 30 while inspecting the bay.
Is this Yanmar B50-2B, B37-2(EP) Parts Catalog a digital download?
A 147-page Parts Catalog in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Is this Yanmar B50-2B, B37-2(EP) Parts Catalog printable?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
Reviews
There are no reviews yet.