Part of the Yanmar Parts Manuals.
Track down the exact factory replacement numbers for your crawler backhoe with this 266-page Yanmar B37-2B, 3TNE88-B1 parts catalog PDF. Inside, you get detailed exploded views for every machine system, from the heavy-duty boom cylinder down to the complete electrical wiring harness. Open to clear component breakdowns showing precise part numbers and hardware sizes for the hydraulic oil pump, drive motors, control valves, and complete swing assembly. Match your replacement pistons to the exact 88 x 90 mm bore and stroke of the factory 3TNE88-B1 engine before you ever call the dealer. Stop ordering the wrong components based on aftermarket website guesswork. Grab this bookmarked file, pull up the exploded diagram on your shop tablet, and order the correct part on the very first try.
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Tool | Set, Wrench, Driver, Screw, Plier, Grease Gun | |
| Kit Parts for Remodel | Decelerate Kit, P.T.O. Kit, Multi Valve Kit, 2-Way Valve Kit | |
| Radio | Assy, Antenna, Harness, Cover Assy, Stay Assy | |
| Cabin Door | Door Assy, Hinge, Key Assy, Cylinder, Lock Assy, Glass, Seal | |
| Canopy | Assy, Pole Assy, Roof, Spring Washer, Bolt | |
| Heater & Defroster | Heater Asy, Switch, Heater, Hose, Valve, Defroster Assy, Nozzle | |
| Hyd. Oil Tank | Joint, Connector, Flange, O-Ring, Element, Gauge, Oil Level | |
| Work Lamp | Lamp, Work, Wire, Bulb, Cover, Washer, Bolt | |
| Arm Cylinder | Cylinder Assy, Piston, Head, Rod Comp, Seal Set, Nipple B, Grease | |
| Swing Cylinder | Cylinder Assy, Tube W/BUSH, Bush, Seal, Dust, Head, Piston | |
| Arm & Bucket Link | Bucket, Cutter, Bolt, Nut, Teeth Assy, Pin Assy | |
| Blade | Bush, Seal, Dust, Pin, Plate, Lock | |
| Blade Cylinder | Cylinder, Blade, Bush, Seal, Piston, Head | |
| Muffler | Extension Pipe, Clamp, Washer, Bolt, Nut | |
| Air Cleaner | Hose, Band, Clamp | |
| Engine Mount | Absorber, Shock, Engine Bed, Bracket, Seat Spring, Bolt | |
| Fuel Tank & Fuel Line | Fuel Tank, Cock, Fuel Gauge Unit, Gasket, Fuel Cap, Fuel Filter | |
| Hyd. Oil Pump & Joint | Boom Cylinder, Piston, Head, Bush, Rod Comp, Seal Kit | |
| Lub. Oil Cooler | Oil Cooler, Washer, Spring Washer, Bolt, Nut | |
| Roller & Adjust | Sprocket, Idler, Plug, Seal, Bearing, Circlip | |
| Swivel Joint | Swivel Shaft, Swivel Flange, Swivel Hub, Swivel Spacer, Swivel Seal Kit | |
| PTO Valve | Assy, Tie-Rod, Spool Section, O-Ring, Wiper, Bolt | |
| Greasing | Rubber, Bush, Seal, Pin, Shim, Grease Nipple |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Model Name | B37-2B | p. 2 |
| Engine Model | 3TNE88-B1 | p. 2 |
| Bore × Stroke | 88 × 90 mm | p. 2 |




















