All 158 pages of this Yanmar Crawler Backhoe B3 Parts Catalog (OEM #000Y00K2363) are built around one job: identifying, cross-referencing, and ordering the right parts for your B3, B3-1, B3-2, B3-P, or B3-PR from the 1988-1996 production run. Inside you get exploded views for every major assembly, from the 3TN84L-RBA engine and hydraulic oil pump to the turning motor, swivel joint, and all five cylinder assemblies. Wiring diagrams cover the full electrical harness and work lamp circuits; hydraulic schematics map the complete oil piping from tank through control valves to each actuator. Your B3-P and B3-PR are rated for a 30-degree climb grade, and every wear item that takes punishment on that terrain, from crawler track components to blade cylinder seals, has its OEM part number listed here. Chasing a part number from a dealer printout that's two machine generations out of date? Bookmarked and searchable, this PDF has the right Yanmar OEM number before you pick up the phone.
What's Inside This Yanmar B3 Series Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Label | - | Labels, Decals, Warning Plates |
| Tool | - | Bar Wrench, Driver, Cotter Pin, Grease Hose, Grease Gun, Pliers |
| Fuel Tank & Fuel Line | - | Fuel Tank, Fuel Gauge, Fuel Hose, Fuel Strainer, Fuel Valve, Fuel Separator |
| Hyd. Oil Tank | - | Connector, Elbow, O-Ring, Suction Pipe, Hydraulic Hose, Clamp |
| Offset Cylinder | - | Cylinder Assembly, Seal Set, Piston, Tube Assembly, Rod, Bush |
| Arm Cylinder | - | Cylinder, Seal Set, Piston, Rod, Bush, Nipple |
| Canopy | - | Assembly, Pole, Roof, Window, Seal, Grip Assembly |
| Electric Part | - | Wire Harness, Work Lamp, Bulb, Fuse Box, Checker Unit, Hour Meter |
| Work Lamp | - | Lamp Assembly, Lens, Reflector, Bulb, Seal Gasket, Wire |
| Accelerator | - | Absorber, Shock, Engine Bed, Support, Bracket, Stopper |
| Silencer & Suction Pipe | - | Flange, Muffler, Exhaust Pipe, Gasket, Silencer, Suction Hose |
| Engine Mount | - | Stopper Shim, Stay, Radiator, Mount, Engine |
| Radiator & Mount | - | Fuel Tank, Fuel Gauge, Radiator Hose, Cap, Fuel Strainer, Water Separator |
| Battery | - | Cord, Spring Washer, Nut, Retainer, Rod |
| Bonnet | - | Canopy, Pole, Roof, Window, Seal, Cover |
| Hyd. Oil Pump & Pump & Joint | - | Pump Assy, HYD.OIL, Pump Shaft, Pump, Center, Rear |
| Boom Cylinder | - | Cylinder Assy, Tube Assy, Seal Set, Piston, Bush, Rod |
| Bucket Cylinder | - | Cylinder Assy, Seal Set, Head, Bush, Rod W/BUSH, Piston |
| Blade Cylinder | - | Cylinder Assy, Seal Set, Head, Piston, Tube Assy, Rod W/BUSH |
| Blade | - | - |
| Frame | - | Bearing, Seal Set, Parallel Pin, Knob, Pin |
| Turning Bearing & Turning Lock | - | Cover, Plate, Rubber, Washer, Spring Washer, Bolt W/WASHER |
| Frame Cover | - | Step, Rubber, Panel Box Assy, Seat Assy, Cushion, Fastener |
| Turning Motor | - | Joint, Shaft, Flange, Hub, Seal Set, O-Ring |
| Swivel Joint | - | Valve Assy, Tie-Rod, Plate, Wiper, O-Ring, Section Assy |
| Greasing | - | Grease Hose, Grease Gun, Nipple PT1/8, Nipple B, Nipple C |
| Crawler | - | Sprocket, Idler, Shaft, Ball Bearing, Roller, Track, Spring, Piston |
| Remote Control Valve | - | Valve Cmp, Lever, Cover, Spring, Plate, Gasket, Plug, Ball |
| Rotary Valve | - | Valve, Plug, Repair Set, Spring, Piston, Valve Compl, Plate, Bolt |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Climbing ability | 30 | p. 2 |
Yanmar B3 Series Common Problems This Manual Covers
Need replacement track tensioner parts for Yanmar B3 crawler backhoe because the right track loses tension
Check the drivetrain parts diagram. Locate the track tensioner spring, roller, and sprocket components. Verify the part numbers to ensure full traction, allowing B3-P and B3-PR models to achieve their maximum 30-degree climbing ability on steep job sites.
Manual Section: CrawlerNeed exact part numbers for the wire harness and fuse box because the machine will not start
Review the cab and interior parts diagram to find the fuse box and hour meter. Locate the main wire harness. Cross-reference all electrical part numbers to fix starting issues, ensuring B3-PR models can achieve their 30-degree climbing ability.
Manual Section: Electric PartUnable to locate the correct grease fitting part numbers after hearing grinding noises from dry cylinder pins
Inspect the boom and attachment parts diagram. Locate the arm cylinder nipple and associated bush components. Request the precise Nipple PT1/8 dimension fitting found in the greasing section to ensure proper lubrication and prevent premature wear on the cylinder rod.
Manual Section: Arm CylinderFrequently Asked Questions
How do you fix need replacement track tensioner parts for Yanmar B3 crawler backhoe because the right track loses tension?
Check the drivetrain parts diagram. Locate the track tensioner spring, roller, and sprocket components. Verify the part numbers to ensure full traction, allowing B3-P and B3-PR models to achieve their maximum 30-degree climbing ability on steep job sites.
How do you fix need exact part numbers for the wire harness and fuse box because the machine will not start?
Review the cab and interior parts diagram to find the fuse box and hour meter. Locate the main wire harness. Cross-reference all electrical part numbers to fix starting issues, ensuring B3-PR models can achieve their 30-degree climbing ability.
How do you fix unable to locate the correct grease fitting part numbers after hearing grinding noises from dry cylinder pins?
Inspect the boom and attachment parts diagram. Locate the arm cylinder nipple and associated bush components. Request the precise Nipple PT1/8 dimension fitting found in the greasing section to ensure proper lubrication and prevent premature wear on the cylinder rod.
How quickly can I access this manual after buying?
You get a 158-page searchable PDF that downloads instantly after checkout. Open it on your laptop, tablet, or phone, and bring it right to the shop floor.
Can I print specific sections of this Yanmar B3 & variants Parts Catalog?
Yes. The PDF is completely DRM-free, so you can print any sections you need to take out to the shop. Standard letter or A4 paper works fine.
Are there wiring harness diagrams in this Yanmar B3 & variants manual?
Yes, this Yanmar B3 & variants Parts Catalog includes a wiring diagram for the electrical system.
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