OEM #000Y00S4210 is the factory parts catalog for the ViO45 crawler backhoe, and these 126 pages map every assembly from engine mount and radiator through boom, cab, and undercarriage. Each section pairs an exploded view with its full part number listing across engine, chassis, hydraulic, and cab systems. The wiring harness diagram calls out electrical components by part number (fuse box, relays, switches, grommets), so you can cross-reference before phoning the dealer. Drill into the hydraulic oil pump and it splits into a cylinder block kit, seal kit, and solenoid couplings, each carrying its own OEM number for exact ordering. No more squinting at part numbers off a blurry photocopy. Bookmarks and keyword search drop you onto the right assembly fast, whether you're reading on a laptop, tablet, or phone.
What's Inside This Yanmar ViO45 Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Label | 1 | Labels, Decals, Warning Plates, Safety Stickers, Machine Identification Markings |
| Preface & Model Information | 1 | Publication Number, Published Date, Model Name, Equipment Serial Number |
| Hydraulic Section Index (2) | 3 | Remote Control Valve, Travel Motor, Control Valve |
| Paint & Part Color Information | 4-5 | Painted Color List, Paint Part Numbers, Color Codes |
| Silencer & Air Cleaner | 14-15 | Tube Assy, Silencer, Air Cleaner Element, Hoses, Clamps |
| Engine Mount | 18-19 | Absorber, Bracket, Engine Stopper, Spring Seat, Bolts |
| Radiator & Mount | 20-21 | Radiator Assy, Oil Cooler, Hoses, Sub-Tank, Clamps |
| Fuel Tank & Fuel Pipe | 22-23 | Fuel Tank, Fuel Pump, Separator, Fuel Filter, Hoses, Clamps |
| Electric Part (Wiring) | 26-27 | Harness, Fuse Box, Switches, Horn, Relays, Grommets |
| Roller & Adjust | 32-33 | Sprocket, Idler, Track Roller, Carrier Roller, Adjust Cylinder Seal |
| Control Equipment (Travel Lever) | 40-41 | Travel Lever, Shaft Assy, Control Cables |
| Frame & Turning Bearing | 50-51 | Frame Covers, Turning Bearing, Rubber Seals, Bolts |
| Hyd. Oil Pump & Joint | 64-65 | Pump Assy, Cylinder Block Kit, Seal Kit, Solenoids |
| Hyd. Oil Piping (Boom) | 108-109 | Hoses, Connectors, Control Valve Connections, Adapters |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Yanmar ViO45 Crawler Backhoe | ||
| Parts Catalog | ||
| 126 | ||
| 000Y00S4210 | ||
| Hydraulic pump & piping, Electric wiring, Undercarriage, Engine mount, Fuel system, Control equipment | ||
| Hyd hose 172486-78340, Pump seal kit, Fuse box, Track roller, Adjust cylinder seal, Turning bearing |
Yanmar ViO45 Common Problems This Manual Covers
Boom cylinder hose connection needs a hydraulic hose part number for replacement p. 108
Open the Hyd. Oil Piping (Boom) exploded view on page 108. Locate your specific hose by position in the diagram, then cross-reference the part number in the parts list. Verify hose end fittings and adapters separately. Boom piping diagrams on page 108 list connectors and adapters as individual line items with their own part numbers.
Manual Section: Hyd. Oil Piping (Boom)Hydraulic pump seal kit part number hard to identify without blowing apart the assembly p. 64
Check the hydraulic parts diagram on page 64. The Hyd. Oil Pump & Joint section lists the Cylinder Block Kit and Seal Kit as separate assemblies with distinct part numbers. Identify your pump by position in the exploded view, then pull the seal kit part number from that line item. Confirm it against the parts list before ordering.
Manual Section: Hyd. Oil Pump & JointFuel-water separator element part number needed for filter replacement p. 22
Find the Fuel Tank & Fuel Pipe exploded view on page 22. The Separator is called out as an individual line item alongside the Fuel Filter, Fuel Pump, and associated hoses. Pull the element part number directly from that diagram. If you want the fuel hoses or clamps serviced at the same time, their part numbers sit in the same section.
Manual Section: Fuel Tank & Fuel PipeCoolant hoses and clamp part numbers needed after inspection found cracked or loose components p. 20
Go to the Radiator & Mount exploded view on page 20. Hoses, clamps, and the Sub-Tank are listed as separate line items; identify which hose position failed and read its part number off the diagram. The Oil Cooler hoses live in the same section, so check whether adjacent connections need parts at the same time.
Manual Section: Radiator & MountElectrical switch or work light part number needed after accessory failure on startup p. 26
Reference the Electric Part (Wiring) exploded view on page 26. Switches, the fuse box, horn, and relays are each called out as individual part numbers. Locate the specific switch position in the harness diagram and note its number. If the work light itself needs replacing, confirm it appears as a separate catalog item in this section before ordering.
Manual Section: Electric Part (Wiring)Undercarriage roller or idler part number unclear when worn components need replacement p. 32
Pull up the Roller & Adjust exploded view on page 32. Sprocket, idler, track roller, carrier roller, and the adjust cylinder are each listed with individual part numbers. Identify the worn component by position in the diagram and read off its number. Order the adjust cylinder seal components separately if the tension cylinder is also leaking.
Manual Section: Roller & AdjustFrequently Asked Questions
What are the part numbers for the boom hydraulic hoses on the ViO45?
The Hyd. Oil Piping (Boom) section (p108-109) lists hydraulic hoses by part number. Key hose: 172486-78340 (HOSE F206CE094S). Additional hose connector: 172486-78100 (HOSE 44.5X57.5) listed under Fig. 42 Hyd. Oil Tank.
What seal kit is available for the hydraulic pump on the ViO45?
The Hyd. Oil Pump & Joint section (p64-65) lists a Seal Kit as a serviceable part under the Pump Assy assembly. The pump assembly includes Cylinder Block Kit, Seal Kit, and Solenoids as separately orderable components.
Where can I find the wiring harness, fuses, and relays for the ViO45?
Electric Part (Wiring) section (p26-27, Fig. 8) covers the complete electrical assembly: Harness, Fuse Box, Switches, Horn, Relays, and Grommets — all listed with individual part numbers for replacement.
What undercarriage components and track adjustment parts are listed for the ViO45?
The Roller & Adjust section (p32-33) covers the full undercarriage: Sprocket, Idler, Track Roller, Carrier Roller, and Adjust Cylinder Seal — all listed with part numbers. The adjust cylinder seal is a common maintenance item for track tension adjustment.
Does the ViO45 parts catalog cover travel controls and hydraulic control valves?
Yes. Control Equipment (Travel Lever) section (p40-41) covers Travel Lever, Shaft Assy, and Control Cables. The Hydraulic Section Index (p3) cross-references Remote Control Valve, Travel Motor, and Control Valve assemblies throughout the catalog.
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