Part of the Yanmar Parts Manuals.
Need the factory part numbers for your 1993-1997 Yanmar VIO20 crawler backhoe? This 151-page parts catalog (OEM #Y00K2902) maps every system from the engine bay to the boom tip. Inside: exploded views for engine, hydraulic, chassis, cab, and boom assemblies, each keyed to exact OEM part numbers with full cross-references so you order the right piece on the first call. Hydraulic schematics and wiring diagrams round out the component identification picture. The factory data holds up: engine bore and stroke run 68 x 72 mm, and hydraulic cylinder dust seals measure 50 x 60 x 4 mm. Stop showing up at the counter with a description and a prayer. Bookmarked by section; open it on your phone, search the part name, and place the order before you walk back to the machine.
Complete the set for your VIO20
- Operator Manual: Yanmar ViO20 Excavator Operator Manual
- Repair Manual: Yanmar ViO20 Service Manual (incl. Wiring)
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Specifications | 1-5 | Engine Model, bore/stroke 68x72mm, Rated Power, Operating Weight, Bucket Capacity, Max Digging Depth, Travel Speed |
| Hydraulic System Parts | 50-80 | Hydraulic Cylinder Dust Seal 50x60x4mm, Bucket Cylinder Dust Seal 38x48x4mm, Hydraulic Pump, Control Valve, Cylinder Rod Seal Kits |
| Electrical System Parts | 81-100 | Wiring Harness, Battery, Starter Motor, Alternator, Fuse, Relay, Switches, Electrical Components |
| Boom & Arm Assembly Parts | 101-130 | Boom Cylinder, Arm Cylinder, Bucket Link, Pins and Bushings, Boom Pivot, Dipper Arm Assembly |
| Undercarriage & Travel Parts | 131-145 | Track Chain, Track Shoe, Sprocket, Idler, Roller, Travel Motor, Track Frame |
| Engine & Cooling Parts | 15-49 | Engine Assembly, Cooling System, Fuel System, Air Cleaner, Exhaust, Engine Mounts |
| Painted Parts & Color Reference | 1-14 | Painted Color Munsell Codes, Color Chart, Paint Part Numbers, Spray Type, Main Parts Colors |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Seal dimension | 50x60x4 mm | p. 57 |
| Bore x Stroke | 68 x 72 mm | p. 2 |
| Travel speed (High/Low) | 4.6 / 2.3 km/h | p. 2 |




















