Every one of the 159 pages in this Yanmar ViO20-2 parts catalog PDF (OEM #0CK10-M37602EN) is dedicated to mapping out the exact components for your 2000-2015 crawler backhoe. Open to detailed exploded views breaking down the entire machine, from the travel motors and boom cylinders to the complete ROPS canopy assembly. You get factory part numbers, interchangeability marks, and clear wiring diagrams to help identify the right electrical harness or control valve spool. Look up the exact 1AP16.0 O-ring for the radiator assembly or verify the 50A slow-blow fuse requirement before talking to the parts counter. Stop wasting days waiting on the wrong replacement components. Grab this bookmarked file on your phone, walk out to the yard, and match your parts perfectly the first time.
What's Inside This Yanmar ViO20-2 Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Reference Materials | 2-6 | Ref. No., Lev. (Level), Interchangeability Mark, Effective Machine No., Remarks Mark |
| Label(Cabin)(Jp) | 10 | Cabin |
| Label(Canopy)(Jp) | 11-12 | Assy, Specification, Oil & Water, Grease, Battery |
| Label(Rops Canopy)(Jp) | 13-14 | Assy, Specification, Oil & Water, Grease, Battery |
| Label(Quick Hitch)(Jp) | 15 | Assy, Pin, Collar, Plug |
| Label(Canopy)(Ex) | 16 | Assy, Oil & Water, Grease, Fuse, P.T.O. |
| Safety Label(Cabin)(Jp) | 17 | Cabin |
| Safety Label(Canopy)(Jp) | 18 | Label, Caution, Battery, Fan, Warning, Loading |
| Safety Label(Rops Canopy)(Jp) | 19 | Label, Caution, Battery, Fan, Warning, Seat Belt |
| Safety Label(Quick Hitch)(Jp) | 20 | Label, Pin, Plug |
| Safety Label(Canopy)(Ex) | 21 | Label ASSY(EX.P), Label, P.T.O., Crawler, Tag Assy, Caution |
| Accessory | 22 | Bag, Manual, Label, Collar, Case, Collar Kit |
| Suction Pipe & Exhaust Pipe | 23 | Pipe, Extension, Hose a, Air Cleaner, Cleaner Assy, Air, Element, Valve |
| Accelerator | 24 | Lever, Cable, Bracket, Joint, Pin, Bolt |
| One Touch Decel(Optional) | 25 | Decelerate Kit, Cable, Accelerator, Harness Decel Assy, Solenoid, Reley, Timer, O-Ring |
| Engine Mount | 26 | Mount Pf, Eng, Stopper, Cushion, Rubber, Anti Vibrat., Washer, Bolt |
| Radiator & Mount | 27-28 | Radiator Assy, Shroud Assy, Seal, Radiator, Pipe, Water, Guard, Fan |
| Fuel Tank | 29 | Tank Assy, Fuel, Gauge, Filter (Fuel, Cock, Water, Sump, Hose |
| Fuel Line | 30 | Hose, Pipe, Fuel, Pump Assy, Fuel Feed, Separator Assy, Water, Valve |
| Duct | 31 | Seal, Weight, Rubber, Radiator, Plate |
| Battery | 32 | Harnes, BATTERY(-), Cord, Brackt, Rod, Clamp, Clamp Assy |
| Electric Part(Wiring) | 33-34 | Harness Assy, Huse, Slow Blow, Diode, Cord, Engine Earth, Clamp, Bolt |
| Electric Part(Equipment) | 35-36 | Switch Assy, Starter, Key Assy, Box, Fuse, Meter Assy, Hour, Relay Assy |
| Work Lamp | 37 | Cover Assy, Lamp, Work, Bulb |
| Heater | 38 | Bracket, Valve Assy, Duct, Hose Assy, Grille |
| Sprocket & Roller | 39 | Sprocket, Track Roller Assy, Seal, Oil, Shaft, Roller, Bearing, Ball |
| Idler & Adjust | 40 | - |
| Crawler | 41 | - |
| Control Equipment(Lock Lever & Stand)(Right) | 42 | Control Valve Plate |
| Control Equipment(Lock Lever & Stand)(Left) | 43 | Control Valve Plate |
| Control Equipment(Travel Lever & Link Stand) | 44 | Control Valve Plate |
| Control Equipment(Operation Lever) | 45 | Control Valve Plate |
| Control Equipment(Blade Lever) | 46 | Control Valve Plate |
| Control Equipment(Swing Pedal) | 47 | Control Valve Plate |
| Control Equipment(Low-High Pedal) | 48 | Control Valve Plate |
| Control Equipment(P.T.O. Pedal) | 49-50 | Control Valve Plate |
| Control Equipment(P.T.O. Link) | 51 | Control Valve Plate |
| Control Valve Plate | 52 | - |
| Turning Frame | 53 | Track Frame & Turning Bearing |
| Track Frame & Turning Bearing | 54 | Turning Frame |
| Cover(Frame) | 55 | - |
| Cover(Around Control) | 56 | - |
| Cover(Cabin Spec.) | 57 | - |
| Cover(Canopy & ROPS Canopy Spec.) | 58 | - |
| Cover(Boom) | 59 | - |
| Step(Cabin Spec.) | 60 | Cabin |
| Step(Canopy & ROPS Canopy Spec.) | 61 | - |
| Instrument Panel | 62 | - |
| Seat & Seat Mount(Cabin Spec.) | 63 | Cabin |
| Seat & Seat Mount(Canopy Spec.) | 64-65 | - |
| Seat & Seat Mount(Rops Canopy Spec.) | 66-67 | - |
| Bonnet(1) | 68 | - |
| Bonnet(2) | 69-70 | - |
| Cabin(Accessory) | 71 | - |
| Cabin(Body:1) | 72 | - |
| Cabin(Body:2) | 73 | - |
| Cabin(Side Door) | 74 | - |
| Cabin(Front Glass) | 75 | - |
| Canopy Lamp | 76 | - |
| Canopy | 77 | - |
| Canopy(Rops) | 78 | - |
| Hyd.Oil Pump & Joint | 79-81 | - |
| Hyd.Oil Pump& Joint(Quick Hitch Spec.) | 82-84 | - |
| Boom Cylinder(Cabin & ROPS Canopy Spec.) | 85 | Cabin |
| Boom Cylinder(Canopy Spec.) | 86 | - |
| Arm Cylinder | 87 | - |
| Bucket Cylinder | 88-89 | - |
| Bucket Cylinder(Quick Hitch Spec.) | 90 | - |
| Swing Cylinder | 91 | Cylinder Assy, Swing, Seal Set, Piston, Nut, Tube, Bush |
| Blade Cylinder | 92 | Cylinder Assy, Blade, Seal Set, Piston, Nut, Tube Assy, Bush |
| Hitch Cylinder | 93 | Cylinder Assy, Hitch, Nut, Tube, Bush, Piston, Seal Set |
| Travel Motor | 94-95 | Motor Assy, Travel, Cylinder Block Kit, Gear, Bearing, Valve |
| Turning Motor | 96 | Motor, Swing, Seal Set, Valve, Housing, Gear, Piston |
| Swivel Joint | 97 | Joint Assy, Swivel, Shaft Assy, Flange, Hub, Seal Set, O-Ring |
| Control Valve(Bucket & Boom 1) | 98 | Valve Assy, Control, Section, Boom Lock, Anti-Cavitation, Spool Assy, O-Ring, Bolt |
| Control Valve(Boom 2 & Travel:Right) | 99 | Section Assy, Travel, Dust Wiper, Retainer, Spool Assy, Valve, O-Ring |
| Control Valve(P Port & Travel:Left) | 100 | Section Assy, Travel, Dust Wiper, Retainer, Seal, Spool Assy, Valve |
| Control Valve(Swing & Arm) | 101 | Section, Arm, Spool Assy, Valve, Reverse, Relief Valve Plug, Section Assy |
| Control Valve(P.T.O. & T/P Port) | 102 | Section, Confluene, Spool Assy, Limitter, Valve, Relief 170/20, PTO |
| Control Valve(Turning & Blade) | 103 | Section Assy, Spool Assy, Swing, Valve, Reverse, Section, Blade |
| Remote Control Valve | 104 | Valve Assy, Rem-Con., Spring, Seal Set, Bellows, Plate, Rort, Nut |
| Remote Control Valve(2-Way Spec.) | 105 | REMO-CON.VALVE M2, Sleeve, Spool, Rod Q, Push, Seal, Plate, Port |
| Rotary Valve(4-Way Spec.) | 106 | Valve, Cover, Spring, Dust Seal, Lever, O-Ring |
| Hyd.Oil Tank | 107-108 | Tank Assy, Reservoir, Filter Assy, Return, Element, Filter, Valve Assy, Bypass |
| Hyd.Oil Piping(Tank-Pump-Valve) | 109 | Flange, Adapter, Joint Assy, O-Ring, Elbow Assy, Tube Assy |
| Hyd.Oil Piping(Pump,Valve-Turning Motor) | 110 | Grommet, Adapter, Connector Assy, O-Ring, Hose |
| Hyd.Oil Piping(Valve-Swivel,Swing) | 111 | Connector, O-Ring, Joint Assy, Hose, Adapter, Clamp |
| Hyd.Oil Piping(Return) | 112 | Joint, Adapter, O-Ring, Elbow, Connector, Nipple |
| Hyd.Oil Piping(P.T.O.,Frame End) | 113 | Turning Frame, Track Frame & Turning Bearing |
| Hyd.Oil Piping(Track Frame) | 114 | Turning Frame, Track Frame & Turning Bearing |
| Hyd.Oil Piping(Boom) | 115 | Adapter, Joint Assy, O-Ring, Hose, Nut, Clamp |
| Hyd.Oil Piping(P.T.O.,Arm End) | 116 | Valve, Stop, Joint, Seal Set, Plug, Bolt |
| Hyd.Oil Piping(Quick Hitch) | 117 | Hose, Elbow, O-Ring, Connector Assy, Plate, Collar |
| Control Piping(Pump-Valve-Return) | 118 | Adapter, Elbow, O-Ring, Hose, Clamp, Connector |
| Control Piping(Remote Control Valve-Control Valve:Standard,2-Way Spec.) | 119 | Adapter, Clamp, Hose, Connector Assy, O-Ring, Band |
| Control Piping(Remote Control Valve-Rotary Valve:4-Way Spec.) | 120 | Adapter, O-Ring, Connector Assy, Band, Hose, Clamp |
| Control Piping(Rotary Valve-Control Valve:4-Way Spec.) | 121 | Adapter, Connector Assy, O-Ring, Hose, Bolt |
| Greasing | 122 | Hose, Joint, Grease, Connector, Fitting, Nipple |
| Boom | 123 | Bush, Seal, Pin, Clamp, Bolt |
| Boom Bracket | 124 | Shim, Pin, Bracket, Plate, Ring, Bolt |
| 100.Arm | 125 | Arm Assy, Seal, Bushing, Pin, Shim, Bolt |
| 101.Arm(Long Arm Spec.) | 126 | Arm Assy, Seal, Bushing, Pin, Shim, Bolt |
| 102.Arm(Quick Hitch Spec.) | 127 | Spacer, Arm Assy, Seal, Bushing, Pin, Nipple |
| 103.Bucket Arm & Link | 128 | Arm, Bucket, Pin, Link, Bush, Seal |
| 104.Quick Hitch | 129-130 | Collar, O-Ring, Bracket, Pin, Guard Assy, Plate |
| 105.Bucket(S-Type) | 131-132 | Pin Kit, Bucket Assy, Cutter, Adapter, Tooth Kit, Lock |
| 106.Bucket(H-Type) | 133 | Pin Kit, Bucket Assy, Cutter, Adapter, Tooth Kit, Lock |
| 107.Bucket Pin(Quick Hitch Spec.) | 134 | Pin Kit, Collar, Pin, Shim, Bolt, Nut |
| 108.Blade | 135 | Spacer, Blade, Bush, Seal, Pin, Shim Set |
| 109.One Touch Decel Kit(Optional) | 136 | Decelerate Kit, Cable, Link, Bracket, Solenoid, Lever |
| 110.4-Way Multi Valve Kit(Optional) | 137 | - |
| 111.2-Way Multi Valve Kit(Optional) | 138 | Valve Kit, Label, Lever Ass, 2W, Spring, Lock, Shaft |
| 112.P.T.O. Kit(Optional) | 139 | - |
| 113.P.T.O. Kit(Long Arm Spec.)(Optional) | 140 | - |
| 114.P.T.O. Kit(Frame End)(Optional) | 141-142 | Turning Frame, Track Frame & Turning Bearing |
| 115.Long Arm Kit(Optional) | 143 | Arm Kit, Spacer, Hose, Clip, Tree, O-Ring |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| HUSE,SLOW BLOW | 50A | p. 33 |
| FUSE, B | 30A | p. 35 |
| CLAMP, HOSE | 22 | p. 38 |
| PIPE L | 300 | p. 28 |
| O-RING | 1AP16.0 | p. 27 |
| BEARING, BALL | 6205 | p. 39 |
| RING | 52 | p. 39 |
| BUSH | 14X20 | p. 25 |
| PIN, SNAP | 6 | p. 24 |
Yanmar ViO20-2 Common Problems This Manual Covers
Yanmar Vio20-2 main power failure and no electrical response when turning the key p. 33
Check the main wiring harness layout on page 33. Replace the blown 50A slow blow fuse using the exact part number from the list. Inspect the battery cables, diode, and engine earth cord for visible damage or shorts before restoring power to the system.
Manual Section: Electric Part(Wiring)Undercarriage track making grinding noises and track feels loose during travel operation p. 39
Inspect the track roller assembly breakdown on page 39. Identify the correct replacement 6205 ball bearing and 52 ring for your serial number. Order the required oil seals and roller shafts simultaneously to complete a full rebuild of the lower components.
Manual Section: Sprocket & RollerEngine overheating quickly and visible coolant pooling near the lower fan shroud p. 27
Remove the damaged radiator seal and check the exploded parts view on page 27. Locate the correct part number for the 1AP16.0 O-ring to ensure a proper factory seal. Order the matching water pipe and shroud assembly hardware if corrosion is present.
Manual Section: Radiator & MountOne touch decelerator pedal feeling excessively sloppy and cable binding during operation p. 25
Verify the decelerator pedal linkage diagram on page 25. Find the exact part number for the 14X20 bush and order replacement snap pins. Replace the worn bracket components and re-route the accelerator cable according to the factory diagram to restore smooth pedal action.
Manual Section: One Touch Decel(Optional)Cab heater blowing cold air and hot coolant leaking inside the operator station p. 38
Drain the heating circuit and review the heater core piping on page 38. Cross-reference the part number for the size 22 hose clamp and the molded hose assembly. Replace both the clamps and the heater valve to prevent further leaks inside the cab.
Manual Section: HeaterFrequently Asked Questions
What are the replacement specifications for fuel filter?
The replacement specification for the fuel filter is Part No. 172183-14250, listed as FILTER (FUEL). This part is found in the Fuel Tank section of the manual.
What are the replacement specifications for water separator element?
The replacement specification for the water separator element is Part No. 129335-55700, listed as SEPARATOR ASSY,WATER. This part is found in the Fuel Line section of the manual.
Where do I find arm cylinder seal parts for the Yanmar ViO20-2?
Arm cylinder seal and component parts for the Yanmar ViO20-2 are documented on page 87. The section covers the cylinder assembly, seal set, piston, tube, and bush components needed for cylinder rebuild or seal replacement.
What parts are listed for the bucket cylinder on the ViO20-2?
Bucket cylinder parts for the Yanmar ViO20-2 are on pages 88-89. The section covers the cylinder assembly, seal set, piston, nut, tube assembly, and bush. A Quick Hitch specification variant is listed on page 90.
Which pages cover undercarriage parts including track rollers, idler, and crawler for the ViO20-2?
The undercarriage section covers sprocket and track roller assemblies (page 39), idler and track adjuster components (page 40), and crawler track assembly (page 41). These pages list seals, bearings, shafts, and rollers needed for undercarriage service.
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