Part of the Yanmar Parts Manuals.
Need the right factory parts for your 1989-1995 Yanmar B6 crawler backhoe? This 181-page OEM parts catalog (part no. Y00K2591) covers every component with numbered exploded diagrams, complete parts lists, and factory cross-references. You get the full wiring diagram to trace any electrical circuit, hydraulic schematics for the control valves and cylinders, specifications for B6-P and B6-PR variants, and a detailed picturesque index so you can pinpoint any part by location before looking up its number. Load the bookmarked PDF on a tablet, find the exact part number, and order with confidence.
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Preface | 1 | Yanmar B6 Parts Catalog History, Model Name Index, Machine Serial Numbers, Japan & Overseas Edition |
| Specifications | 2 | Model Variants B6/B6-P/B6-PR, Engine 4TN84L-RBB, Dimensions, Bucket Capacity, Max Digging Depth, Travel Speed 4.3-2.2 km/h (B6-P) / 4.5-2.3 km/h (B6-Pr), Machine Mass |
| Paint & Color Reference | 3-7 | Table of Painted Colors (4 Variants), Paint Part Numbers, Saffron Yellow, Charcoal Gray, Cream White, Red1, Deep Green, Mint Green, New Permanent Yellow, Dark Olive Gray |
| Picturesque Index, Main & Hydraulic Sections | 8-9 | Main Parts Overview (Engine Mount, Radiator, Fuel Tank, Battery, Electric Part, Track Roller, Turning Frame, Boom, Arm, Cylinders), Hydraulic Section Index (Travel Motor, Swivel Joint, Control Valve, Oil Pump, Pilot Valve) |
| Picturesque Index, Attachment & Figures | 10-16 | Chassis Parts, boom/arm/bucket Assembly, Cab & Canopy, Track & Control Equipment, Bucket Attachments (550/600/650/700/750/330/S-Type), Blade |
| Wiring Diagram | 17-19 | Label Set, Specification Label, Oil/water Label, Greasing Label, Offset Stopper Label, B6 Label, Stripe a Label, Restart Label |
| Labels & Tools | 20-29 | Label Set, Specification Label, Stripe a Label, Offset Stopper Label, Stripe C Label, Oil & Water Label, Offset E Label, Start Switch Label |
| Crawler (500, Attachment) | 30-52 | Support, Bracket, Eng Bracket, Engine Stopper, Shock Absorber, Mount, Water Drain Hose, Hose .5X13 |
| Control Equipment (Arm & Turning) | 53-68 | Link, Bush, Pedal, Shaft, Pedal Lock, Pedal Pad, Spool Link, Elball |
| Turning Frame & Bonnet | 69-84 | Lever Assy, Bush, Lever Knob, Link Assy, Shaft Assy, Grease Nipple B, Grease Nipple C, Rod |
| Remote Control Valve & Cut Off Valve | 85-127 | Cover, Mount Cover, Guard Plate, Driving Cover, Rail, Plate Assy, Rubber Cover, Rubber |
| Hyd. Oil Piping (Return) | 128-143 | Valve, Tie-Rod, Inlet Section Assy, Outlet Section, Spool Section Assy, Relief Valve Assy, Hydraulic Oil Tank Assy, Filter Support Rod |
| Boom | 144-159 | Tube, Offset Tube, Bucket Tube, Arm Tube, Hose Guide, Hose, Guide, Connector |
| Bucket330 (Attachment) | 160-176 | Arm, Bush 50X80, Spacer .5X33, Dust Seal 50X60X4, Seal Dkiy 45X55X4, Dust Seal VAY45X55X4, Bucket Arm, Bucket Link |
| Safety Label (B6-2) | 177-181 | Lock Plate, Blade Assy, Bush 45X40, Dust Seal 45X55X4, Grease Nipple PT1, Grease Nipple B, Spacer, Label a |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Fuse Current Rating | 5A | p. 39 |
| B6-P | ||
| Travel speed (high-low), B6-P | 4.3 - 2.2 km/h | p. 2 |
| B6-PR | ||
| Travel speed (high-low), B6-PR | 4.5 - 2.3 km/h | p. 2 |


















