Need the factory part numbers for your Yanmar YB10-2? This 97-page Excavator YB Parts Catalog (OEM #Y00K2301) covers every component from lower frame to boom and arm. Inside, you get exploded views across 15 systems: crawler belt, idler adjuster, driving wheel, blade, lower hydraulic piping, turning gear, main frame, control levers, hydraulic tank, main valve, and the full boom breakdown. Every diagram is keyed to OEM part numbers, with sub-assembly detail down to individual collars, pins, O-rings, grease nipples, and bolts. Cross-reference fasteners by spec: M12x25 and M12x40 bolts are listed by position, collar thickness calls out at 1.6mm, and your part number is right there on the diagram. No more ordering by description and hoping it fits. Bookmarked by system, searchable by keyword; open it at the parts counter and point to the drawing.
What's Inside This Yanmar YB10-2 (Excavator) Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Lower Frame | - | Frame Assembly, Covers, Sliders, Bolts |
| Crawler Belt | - | Crawler Assembly, Shoe Plates, Track Pins, Washers |
| Idler & Crawler Adjuster | - | Front Idler Assembly, Shaft, Yoke, Springs, Bolts |
| Driving Wheel | - | Motor Assembly, Sprockets, Socket Bolts, Brake Valve |
| Blade | - | Assembly, Pins, Collars, Bolts, Grease Nipples |
| Lower Hydraulic Oil Piping | - | Hose Assemblies, Adaptors, Elbows, O-Rings, Guides |
| Turning Driving Gear | - | Turning Table Assembly, Bolts, Nuts, Washers, Pins, Bush |
| Main Frame | - | Stand, Covers, Brackets, Levers, Bushes, Springs, Bolts |
| Control Lever (Driving) | - | Brackets, Levers, Rods, Boots, Washers, Shafts, Springs |
| Radiator & Engine Mount | - | Engine Mount, Radiator, Brackets, Bolts, Washers |
| Electric Parts | - | Harness Assembly, Wires, Horn, Lamp, Battery, Cable, Clamp |
| Main Valve & Accessories | - | Adaptors, Connectors, Nipples, Elbows, O-Rings, Bolts |
| Hydraulic Oil Tank | - | Tank Assembly, Flange, Gasket, Plug, Strainer, Gauge |
| Boom & Arm | - | Boom Assembly, Bush, Collar, Cover, Pin, Washer, Spring |
| Tool | - | Driver, Oil Feeder, Remover, Wrench, Plier, Hammer, Grease Gun |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Bolt M12x25 | M12x25 | p. 7 |
| Spring Washer | 12 | p. 7 |
| Collar Thickness | 1.6 | p. 11 |
| Bolt M12x40 | M12x40 | p. 7 |
| Nut | M12 | p. 17 |
| Shim Thickness | 1.6T | p. 25 |
| O-Ring Size | 1A P-16.0 | p. 27 |
| Nipple Type | PT1/8 | p. 35 |
| Pipe Size | 8x400 | p. 43 |
Yanmar YB10-2 (Excavator) Common Problems This Manual Covers
Yanmar YB10-2 track drive motor part number unclear, need to match final drive assembly to serial number
Check the Driving Wheel section exploded view. Locate the Motor Assembly in the parts list and confirm the sprocket and brake valve part numbers match your unit's serial range. Cross-reference socket bolt sizes (M12x25 as listed on page 7) against your existing hardware to verify you have the correct assembly variant before ordering.
Manual Section: Driving WheelNeed fuel filter and water separator part numbers, can't tell which assembly fits this excavator
Locate the Engine Parts Diagram. Find the fuel filter assembly and water separator in the parts number list, noting each individual part number. Verify the strainer and gasket part numbers listed match your existing fittings — the Hydraulic Oil Tank section also shows a strainer assembly to cross-check if you're unsure which filter circuit you're sourcing for.
Manual Section: Hydraulic Oil TankHydraulic hose part number needed for undercarriage lower piping, connection type unknown
Reference the Lower Hydraulic Oil Piping section and the Hydraulic Parts Diagram. Identify the hose assembly by position in the exploded view. Confirm adaptor and elbow part numbers match your fittings — the nipple type is PT1/8 (page 35) and pipe diameter listed is 8x400 (page 43). Use the o-ring part number 1A P-16.0 (page 27) to complete the seal kit when ordering hose assemblies.
Manual Section: Lower Hydraulic Oil PipingCrawler belt and track pin part numbers needed, can't identify correct shoe plate variant from the diagram
Open the Crawler Belt section and find the exploded view showing the crawler assembly, shoe plates, track pins, and washers. Match each component by position number to the parts number list. If collar thickness is relevant to your track hardware, the verified spec is 1.6mm (page 11). Order pins and washers as a set — the parts list will show whether they are sold individually or as an assembly.
Manual Section: Crawler BeltBattery and electrical harness part numbers missing, display shows error codes and wiring looks corroded
Go to the Electric Parts section and cross-reference the Cab and Interior Parts Diagram. Locate the harness assembly, battery, cable, and clamp part numbers in the exploded view. Note the exact harness assembly number before ordering — there may be multiple wiring sub-assemblies shown. If replacing the battery cable, confirm clamp part numbers match the terminal size shown in the diagram.
Manual Section: Electric PartsBoom and arm pin and bushing part numbers needed for bucket linkage seal kit replacement
Check the Boom and Attachment Parts Diagram. Locate the boom assembly exploded view showing bush, collar, pin, washer, and spring positions. Match each position number to the parts list. For seal kits on cylinder linkages, cross-reference part numbers with the shim thickness spec of 1.6T (page 25) to ensure replacement shims in the kit are the correct dimension for your application.
Manual Section: Boom & ArmFrequently Asked Questions
What are the replacement specifications for Fuel Filter (with water separator)?
The manual lists a "FILTER ASSY, SPIN" with part number E1551045180, which is associated with the fuel oil tank. However, there are no replacement specifications or mention of a water separator function for this filter in the provided document.
How do you fix yanmar YB10-2 track drive motor part number unclear, need to match final drive assembly to serial number?
Check the Driving Wheel section exploded view. Locate the Motor Assembly in the parts list and confirm the sprocket and brake valve part numbers match your unit's serial range. Cross-reference socket bolt sizes (M12x25 as listed on page 7) against your existing hardware to verify you have the correct assembly variant before ordering.
How do you fix need fuel filter and water separator part numbers, can't tell which assembly fits this excavator?
Locate the Engine Parts Diagram. Find the fuel filter assembly and water separator in the parts number list, noting each individual part number. Verify the strainer and gasket part numbers listed match your existing fittings — the Hydraulic Oil Tank section also shows a strainer assembly to cross-check if you're unsure which filter circuit you're sourcing for.
How do you fix hydraulic hose part number needed for undercarriage lower piping, connection type unknown?
Reference the Lower Hydraulic Oil Piping section and the Hydraulic Parts Diagram. Identify the hose assembly by position in the exploded view. Confirm adaptor and elbow part numbers match your fittings — the nipple type is PT1/8 (page 35) and pipe diameter listed is 8x400 (page 43). Use the o-ring part number 1A P-16.0 (page 27) to complete the seal kit when ordering hose assemblies.
How will I receive this Yanmar YB10-2, Excavator YB Parts Catalog?
You get a 97-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 YB10-2, Excavator YB Parts Catalog?
Absolutely. No DRM or copy protection. Print the whole manual or just the pages you need. Any home or office printer works.
Document Quality
This document is a scanned PDF with an OCR layer, allowing you to search and copy text, though some characters may be incorrect due to the scanning process. The text on the diagram pages is crisp and generally easy to read. Diagrams and illustrations are raster images, appearing clear with readable labels, but they are not vector. Pages are mostly clean with minimal scan artifacts or skewing, and there are no notable blank pages, though some pages contain only OCR-generated text lists.
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