Need the exact factory part numbers for your 2003-2004 Yanmar crawler back-hoe? This 136-page Yanmar Vio50 Series Parts Catalog PDF (OEM #0CS10-M43901EN) breaks down every component for the Vio50-2A. Inside, you get highly detailed exploded views of the entire machine, from the quick coupler cylinder down to the track rollers. Open it up to find complete parts lists with OEM numbers, interchangeability symbols, and hardware descriptions for the hydraulic pumps, control valves, and cab assemblies. Check the exact hardware sizing for your intake system, like the M8X 50 silencer bolt or the 16X20X4.5 air cleaner grommet. Stop ordering the wrong parts from vague online diagrams. Grab this bookmarked download, open it on your phone at the parts counter, and get the right fit the first time.
What's Inside This Yanmar ViO50-2A Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Reference Materials | 2-6 | Fuel Injection Pump, Fuel Injection Pump N, Camshaft, Roller Bearing, Retainer |
| Label(Cabin) | 9-11 | Model Label, Model N Label, Lift Q Us Label, Lift Q Us N Label, Grease Label, Label, Boom Label, Ventilation Label |
| Label(Canopy) | 12-14 | Model Label, Model N Label, Lift Q Us Label, Lift Q Us N Label, Grease Label, Label, Boom Label, Suport Us Label |
| Label(Cabin)(Quick Coupler) | 15-17 | Model Label, Model N Label, Lift Q Us Label, Lift Q Us N Label, Grease Label, Label, Boom Label, Ventilation Label |
| Label(Canopy)(Quick Coupler) | 18-20 | Model Label, Model N Label, Lift Q Us Label, Lift Q Us N Label, Grease Label, Label, Boom Label, Suport Us Label |
| Safety Label | 21-22 | Caution Tag Assy, Caution N Tag Assy, Manual Label, Manual Us N Label, Slope Label, Slope Us N Label, Hydraulic Oil Tank Label, Hydraulic Oil Tank N Label |
| Silenser & Air Cleaner | 23 | Tube Assy, Bracket Assy, Silencer Gasket, Silencer, Silencer N, Air Cleaner Assy, Element, Unloader Valve |
| Accelerator | 24 | Accelerator Lever, Cable Support Assy, Accelerator Cable, Cable Joint |
| Engine Mount | 25 | Mount Lf, Mount Lr, Engine Mount Rf, Mount Rf N, Engine Mount Rr, Mount Rr N, Stopper Assy, Stopper Assy N |
| Radiator & Mount | 26-27 | Radiator, Radiator Cap, Label, Radiator Hose, -Way Cock Assy, Body, Bracket Assy, Duct Assy |
| Fuel Tank & Fuel Pipe | 28 | Fuel Tank Assy, Water Cock, Gasket, Fuel Gauge, Fuel Gauge Hose, Float, Drain Hose, Fuel Sump |
| Battery | 29 | Battery Cord Assy, Harness C, Battery Cover, Tree Clip, Battery Clamp Assy, Rod |
| Electric Part(Wiring) | 30 | Harness, Diode, Slow Blow Huse, Housing, Puller, Cover, B 5A Fuse, Alarm Harness |
| Electric Part(Equipment) | 31-32 | Grommet, Starter Switch Assy, Cord Assy, Cover, Indicator Box, Indicator N Box, Light Switch Assy, Packing |
| Electric Part(Air Con. Spec.) | 33 | Harness, Harness Assy N, Diode, Bracket J Assy, Plate B, Insulator Sheet, Safety Relay, Band W |
| Travel Alarm | 34 | Alarm Case Assy, Bracket a Ssw, Bracket B Ssw, Alarm Case Cover, Back Buzzer, Safety Start Switch, Band |
| Work Lamp & Canopy Lamp | 35 | Lamp 150X95, Bulb, Lamp Stay, Washer |
| Heater | 36-37 | Band, Hose Clip, Heater Frame, Heater Duct Assy, Heater Hose Assy, Corrugated Tube, Heater Joint |
| Heater(Air Con. Spec.) | 38 | Band, Heater Joint, Hose Guide Assy, Heater Valve Assy, Pipe Joint, Grille, Heater Hose, Hose Assy |
| Window Washer | 39 | Bracket Z, Bracket W, Washer, Bolt |
| Compressor & Pulley(Air Con.) | 40 | Compressor Assy, V-Belt, Pulley, Tension F Pulley, Bracket Assy, Plate D, F Plate Assy, Adjuster Assy |
| Piping(Air Con. Spec.) | 41-42 | Pad Mount, Radiator Bracket, Motor, Air Conditioner, Fan Duct Assy, Condenser Assy, Seal, Sponge Seal |
| Cover(Air Con. Spec.) | 43 | Battery Clamp Rod, Hose Cover Assy, Trim, Sponge Seal, Bracket F, Plate R Assy, Seal Rubber, Sponge |
| Roller & Adjust | 44-45 | Sprocket, Sprocket N, Idler Assy, Idler Assy N, Bush, Floating Seal, Idler Shaft, Idler Seal Cover |
| Crawler | 46-47 | Track Shoe Assy, Track S Shoe Assy, Shoe Plate 400L, Link Assy, Link Assy S, Track Link, Track S Link, Bush |
| Lock Lever & Stand(Right) | 48 | Lever Stand, Bush, Sponge, Plate, Grip, Spring, Lever R, Lock Label |
| Lock Lever & Stand(Left) | 49 | Grip, Hose Guide, Lever Stand, Bush, 25X15 Bush, Spring, Gas Spring, Switch Bracket |
| Travel Lever | 50-51 | Boots, Track Lever L, Bush, Drive Grip, Bracket Assy, Grease PT1 Nipple, Link Stand Assy, Link N Stand Assy |
| Blade Lever | 52 | Shaft Assy, Blade Grip, Blade Cable |
| Swing Pedal | 53 | Swing Link, Bush, Pedal Link, Pedal Shaft, Grease PT1 Nipple, Grease B Nipple, Pedal Cover |
| Low-High Pedal | 54 | Return Spring, Lo-Hi Pedal, Pedal Bracket, Bush, Pedal Pad |
| P.T.O.Pedal | 55 | Spring, PTO Pedal, Pedal Cover, Cover Pad, Lock Assy, Lock Label, Pedal Boots, Rod |
| Frame & Turning Bearing | 56 | Lower Frame Assy, Frame Cover, Counter Weight, Bracket, Side Weight, Sponge, Seal, Grommet |
| Cover(Frame) | 57-58 | Motor Cover, Cover, Cover N, Electric Cover Assy, Frame Cover, Sponge, Grease Cylinder Label, Grease Cylinder N Label |
| Cover(Cabin) | 59 | Bonnet Grip, Sponge, Duct Cover Assy, Seal Rubber, Trim, Cabin Cover, Seal, Stopper |
| Cover(Canopy) | 60 | Bonnet Grip, Cover, Seal Rubber, Sponge, Trim, Tree Clip |
| Step & Instrument Panel | 61 | Step Assy, Step Seal, Label, Sheet, Floor a Mat, Floor Mat B, Instrument Panel L, Instrument Panel R |
| Seat & Seat Mount | 62-64 | Operator Seat, Operator N Seat, Backrest Cushion, Seat Cushion, Stopper, Rail Set, Seat Belt, Seat Belt N |
| Bonnet | 65-67 | Bonnet Grip, Lock Bracket B, Shaft, Hook, Lock Cover, Bonnet a, Seal Rubber, Seal |
| Cabin(Body) | 68-69 | Cabin Assy, Cabin Assy N, Label, Knob Clutch, Plate Assy Low Glass, Holder Glass Up, Clip, Glass Run |
| Cabin(Electric Part) | 70 | Wire Harness a, Wire Harness B, Wiper Motor, Wiper Arm, Wiper Blade, Grommet, Cord, Working Lamp |
| Cabin(Glass) | 71-72 | Plate, Sponge Seal, Trim, Grip, Front W Frame, Fw Link L, Fw Link R, Handle L |
| Cabin(Door) | 73-74 | Cylinder Key Assy, Plate, Trim, Latch Cover, Tube, Pipe, Packing, Rod |
| Tim Cabin(Body) | 75 | Cabin Assy, Stopper, Seal, Cabine Base Assy, Door Stopper, Door Catch, Protector L, Plate |
| Tim Cabin(Accessory) | 76 | Glass, Sash Assy, Skylight Glass, Joint Seal, Front Window Holder, Lock Cover, Radio Support, Wiper Blade Support |
| Tim Cabin(Electric Part&Wiper) | 77 | Wire Harness Cabin, Grommet, Band, Cap, Spring, 16X22X3 Grommet, Room Lamp, Lamp |
| Tim Cabin(Heater & Duct Cover) | 78 | Defroster, Heater Cover, Defroster Hose, Duct Cover, Clip, Ashtray, Heater, Seal |
| Tim Cabin(Front Glass) | 79 | Glass Assy, Flame Front Glass, Upper Window Lock L, Upper Window Lock R, Grip, Nylon Bush, Seal, Mirror |
| Tim Cabin D00R(Body) | 80 | Door Assy, Frame Front, Frame Rear, Bar, Glass, Hinge, Rubber Spacer, Seal |
| Tim Cabin Door(Accessory) | 81 | Outer Handle, Handle Sole, Plastic Spacer, Lock Assy, Cover, Catch, Spacer, Mount |
| Canopy & Canopy Mount | 82 | Canopy Assy, ROPS F Canopy Assy, Lift Q Us Label, Lift Q Us N Label, Slope Label, Slope Us N Label, ROPS Label, ROPS Us N Label |
| Hyd.Oil Pump & Joint | 83-84 | Flywheel Cover, Coupling, Pump, Pump Assy N, Seal Set, Seal Set N, Gasket, Oil Seal |
| Boom Cylinder | 85 | Boom Cylinder Assy, Head Seal Set, Boom Tube, Bush, Dust Seal, Rod, Piston, Planger |
| Arm Cylinder | 86 | Arm Cylinder Assy, Head Seal Set, Piston Seal Set, Plunger, Cushion Collar, Arm Tube Assy, Bush 50X60, Dust Seal |
| Bucket Cylinder | 87 | Cylinder Assy, Piston, Bucket Tube, Bush 45X40, Dust Seal, Bucket Rod, Bush, Head Assy |
| Swing Cylinder | 88 | Swing Cylinder Assy, Head Seal Set, Piston Seal Set, Swing Tube, So Bush 40X40, Dust Seal, Swing Rod, Bush 40X40 |
| Blade Cylinder | 89 | Blade Cylinder Assy, Blade Tube, Bush, Dust Seal, Blade Rod Assy, Head Assy, Rod Bush, Head Seal Set |
| Quick Coupler Cylinder | 90 | Hitch Cylinder Assy, Hitch Tube, Bush, Coupler Rod Assy, Head, 35X20 Bush, Piston, Head Seal Set |
| Travel Motor | 91-92 | Spring, Plate Valve, Spring Seat, Shaft, Bearing, Reduction Gear, Plate |
| Turning Motor | 93 | Swing Motor, Reduction Gear, Carrier Kit, Ring, Gear, Thrust Collar, Pinion, Hydraulic Motor |
| Swivel Joint | 94 | Swivel Joint Assy, Swivel Shaft Assy, Swivel Flange, Swivel Hub, Swivel Spacer, Swivel Seal Set, Back Up Ring El, Ring |
| Control Valve(P Port) | 95 | Control Valve Assy, Control N Valve Assy, Inlet Section Assy, Relief Valve, Blade Section Assy, Cap, Tie Rod, Valve Plate |
| Control Valve(Travel & P.T.O.) | 96 | Travel Section Assy, Wiper, PTO Section Assy, Shutoff Valve |
| Control Valve(Arm & Swing) | 97 | Swing Section Assy, Swing N Section Assy, Wiper, Relife Valve, Relief N Valve Assy, Arm Section Assy, Arm N Section Assy, Cap |
| Control Valve(Boom & Bucket) | 98 | Bucket Section Assy, Bucket N Section Assy, Cap, Relife Valve, Relief N Valve Assy, Blade Section Assy, Boom N Section Assy, Buck Up Ring |
| Control Valve(Turning & Blade) | 99 | Blade Section Assy, Blade N Section Assy, Wiper, Relife Valve, Relief N Valve Assy, Swing Section Assy, Cap, Section Assy |
| Remote Control Valve | 100 | R.us Valve Assy, Bellows, Command Kit, Cardan Kit, Retaining Plate, Plunger Kit, Regulation Kit, Spring Kit |
| Way Valve | 101 | -Way Bracket Assy, 2WAY Valve Assy, Lever Knob, Shaft, Valve Block, Stay Assy, Stay Assy N, Lever |
| Hyd.Oil Tank | 102 | Oil Tank Assy, Reservoir Cover, Reserver Cap, Drain Plig, Tank Cover, Gauge Assy, Filter Rod Assy, Suction Filter |
| Hyd.Oil Piping(T.-P.-Valve) | 103 | PF1/2X3 Connector, PF1 Connector, Flange, Body, Connector, Rgi- Joint, Hose, Hose Guard |
| Hyd.Oil Piping(P.-V.-Motor) | 104 | Adapter, Adapter N, Connector Assy, Adjustable Tee, Hose |
| Hyd.Oil Piping(V.-S.-Swing) | 105 | Adapter, Connector Assy, Joint Assy, Hose |
| Hyd.Oil Piping(Return) | 106 | Adapter, Drain Block, Drain R Block, Connector Assy, - Joint Assy, Nipple, PF1/ - Joint, Elbow Nipple |
| Hyd.Oil Piping(Travel) | 107 | Connector Assy, Adjust Elbow, Joint Assy, 90RGI- Joint, PF1/2PF3 Connector, Hose, Grommet |
| Hyd.Oil Piping(Boom) | 108 | Adapter, Body, Connector, K Adapter, Hose, Joint Assy W |
| Hyd.Oil Piping(P.T.O.) | 109 | Hose Cover Assy, Hose N Cover Assy, PF3/8X3 Connector, PTO Tube, PF3/8X3/ K Connector, PF3/8X3/ N Connector, Stop Valve, Seal Set |
| Hyd.Oil Piping(Quick Coupler) | 110 | Adapter, Connector Assy, Hose, Hitch Tube, Cover Assy, Elbow |
| Control Piping(P.-V.-Return) | 111 | Adapter, Connector Assy, Hose, O-Ring |
| Control Piping(V.-2-Way Valve) | 112 | Adapter, Connector Assy, PF1/ - Joint, Hose, Hose Sponge, Rgi- Joint |
| Greasing | 113 | Grease Joint, Hose, Grease PT1 Nipple |
| Boom & Boom Bracket | 114-115 | Boom Assy, Dust Seal, Bush, Steering Label, Steering N Label, Boom Label, Boom N Label, Sand Us Label |
| Arm & Bucket Link | 116 | Tree Clip, Arm Assy, Dust Seal, Bush 60X75, Finger Label, Finger Us N Label, Operation Pin Label, Spacer |
| Arm & Quick Coupler | 117-118 | Tree Clip, Arm Assy, Dust Seal, Bush 60X75, Finger Label, Finger Us N Label, Operation Pin Label, Spacer |
| Bucket | 119 | 700S Bucket Assy, Bucket Assy, Side Cutter, Tooth Assy, Point Tooth, Lock Pin Assy, Adapter, Bucket Pin Kit |
| Blade | 120 | Spacer, Blade Assy, Bush, Dust Seal, Lock Plate, Grease PT1 Nipple, Grease B Nipple |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Bolt size (Silencer & Air Cleaner) | M8X 50 | p. 23 |
| Grommet size (Silencer & Air Cleaner) | 16X20X4.5 | p. 23 |
| Clamp size (Silencer & Air Cleaner) | 70 | p. 23 |
| Pin snap size (Accelerator) | 6 | p. 24 |
| Pin size (Accelerator) | 6X17 | p. 24 |
| Bolt size (Engine Mount) | M10X 40 | p. 25 |
| Washer size (Engine Mount) | 10 | p. 25 |
| Washer spring size (Engine Mount) | 16 | p. 25 |
Yanmar ViO50-2A Common Problems This Manual Covers
Cannot locate the correct Yanmar Vio50-2A exhaust silencer mounting hardware after the machine started sounding extremely loud. p. 23
Examine the silencer and air cleaner parts breakdown on page 23. Identify the exact M8X 50 and M10X 25 mounting bolts needed for the bracket. Replace any torn 16X20X4.5 grommets and secure the fresh air intake hose with a new size 70 clamp.
Manual Section: Silenser & Air CleanerTrying to find the right throttle cable linkage part numbers because the accelerator pedal is completely stuck. p. 24
Review the accelerator linkage exploded view on page 24. Match your broken cable joint components to the parts list. Order the exact size 6X17 pin to connect the lever assembly, and secure the linkage using a new size 6 pin snap.
Manual Section: AcceleratorNeed the exact part numbers for the engine mounting brackets after noticing severe diesel engine vibration under load. p. 25
Inspect the engine parts diagram on page 25 to locate the vibration isolators. Order replacement M10X 40 and M16X 150 mounting bolts for the block brackets. Include the required size 10 flat washers and size 16 spring washers to prevent loosening.
Manual Section: Engine MountFrequently Asked Questions
What are the replacement specifications for Fuel filters?
For the YANMAR Vio50-2A, the replacement specification for the fuel filter is identified by Parts No. 172183-14250. This part is listed in the Fuel Tank & Fuel Pipe section of the catalog.
What are the replacement specifications for Fuel separator / inline fuel filter?
For the YANMAR Vio50-2A, the replacement specifications for the fuel separator are Parts No. 184016-55700 for the SEPARATOR ASSY,WATER, and Parts No. 184016-55701 for an alternative SEPARATOR ASSY,WATER. Additionally, the ELEMENT for the separator is Parts No. 119802-55710. These parts are found in the Fuel Tank & Fuel Pipe section.
How do you fix cannot locate the correct Yanmar Vio50-2A exhaust silencer mounting hardware after the machine started sounding extremely loud?
Examine the silencer and air cleaner parts breakdown on page 23. Identify the exact M8X 50 and M10X 25 mounting bolts needed for the bracket. Replace any torn 16X20X4.5 grommets and secure the fresh air intake hose with a new size 70 clamp.
How do you fix trying to find the right throttle cable linkage part numbers because the accelerator pedal is completely stuck?
Review the accelerator linkage exploded view on page 24. Match your broken cable joint components to the parts list. Order the exact size 6X17 pin to connect the lever assembly, and secure the linkage using a new size 6 pin snap.
What format is this manual in?
Immediate download of the complete 136-page searchable Parts Catalog. Access it on any device, from a laptop at your desk to a phone in the field.
Is this Yanmar Vio50-2A Parts Catalog printable?
Yes. The PDF has no DRM restrictions, so print any page or section you need for your shop. Works with any standard printer.
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