Part of the Kubota Parts Manuals.
This is the Kubota B6100HST-D parts catalog (publication 100K0032), a 138-page exploded-view guide for the hydrostatic four-wheel-drive compact tractor. Each section pairs a numbered parts diagram with the matching Kubota part numbers, quantities, and country-code notes.Coverage runs the full machine: the diesel engine, clutch, transmission and PTO shafts, differential, front axle gear cases and 4WD drive components, hydrostatic transmission, control valve and hydraulics, steering, brakes, radiator, fuel system, and electrical parts.It is built for accurate part identification, so you can find the exact number for a worn gear, seal, or bearing before ordering and confirm how a group assembles during repair. Delivered as a downloadable, searchable PDF you can zoom and print at home.
What's Inside This Kubota B6100HST-D Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Clutch & Transmission | Clutch, Transmission Case, Clutch Rod, 1st Shaft 4th Shaft, 2nd Shaft Front Wheel Shaft, Aux. Speed Change, Rotary Speed Change, Hydrostatic Transmission, Speed Change 1, Speed Change 2, Clutch Housing | |
| Fuel System | Nozzle Holder, Injection Pump, Speed Control Plate, Governor, Fuel Tank, Air Cleaner, Fuel Filter | |
| Cooling System | Radiator | |
| Engine | Crankcase, Cylinder Head, Gear Case, Bearing Case, Breather, Inlet Manifold, Valve Rocker Arm, Head Cover, Camshaft, Piston Crankshaft, Flywheel, Muffler, Front Wheel Gear Case | |
| Electrical System | Dynamo, Starter, Battery | |
| PTO | 3rd 5th PTO Shaft | |
| Rear Axle, Differential & Brakes | Axle Case, Brake, Brake Rod, Front Axle Case | |
| Front Axle & Steering | Steering, Front Wheel Support, Knuckle Arm, Front Differential, Front Axle Joint | |
| Hydraulics & 3-Point Hitch | Oil Pressure Pump, Hydraulic Pipe, Control Valve, Hydraulics 1, Hydraulics 2, 3-Point Linkage | |
| Body & Operator Station | Case Cover, Seat, Fender, Bonnet, Panel | |
| Decals & Accessories | Name Plate, Accessory and Service Parts | |
| Other Components | Wheel Hub, Differential, Release Rod, Drive Shaft |
Every system also includes a diagram and a parts list.
Kubota B6100HST-D Common Problems This Manual Covers
No 4WD drive to front axle
A broken gear inside the front wheel gear case is a common cause of lost four-wheel drive on the B6100HST-D. This group shows the gears and bearings to inspect and replace.
Manual Section: Front Wheel Gear Case [Dp] p. 123Hydrostat will not move
The tractor may fail to move or lose drive when the hydrostatic transmission wears internally or the fluid is low or contaminated. The hydrostatic transmission group details its internal parts.
Manual Section: Hydrostatic Transmission p. 77Weak drive or lost traction under load
Front axle driveline damage can cause abnormal drive behavior and loss of traction. The front differential parts diagram identifies the worn gears and bearings behind it.
Manual Section: Front Differential [Dp] p. 127Overheating from neglected cooling service
Skipped maintenance, a clogged radiator, or degraded coolant leads to repeated overheating. The radiator group lists the core, hoses, and related cooling parts to replace.
Manual Section: Radiator p. 103Slow or weak hydraulic function
Worn valve parts or contaminated fluid make the hydraulics slow and weak. The control valve group breaks out the spool, springs, and seals that owners renew during service.
Manual Section: Control Valve p. 79Steering play or wander
Wear in the steering box and linkage produces excess play and poor tracking. The steering group identifies the parts to rebuild or replace.
Manual Section: Steering p. 85Frequently Asked Questions
Which tractor does this catalog cover?
It covers the Kubota B6100HST-D hydrostatic four-wheel-drive compact tractor, publication 100K0032, across 138 pages of exploded parts diagrams and part numbers.
Does it cover the hydrostatic transmission?
Yes. The hydrostatic transmission group provides the diagram and part numbers for the HST unit, helpful when the tractor will not move or loses drive. p. 77
Can I find front axle gear case parts?
Yes. The front wheel gear case section shows the gears and bearings behind a common no-4WD failure, so you can identify the exact broken part before ordering. p. 123
How is it delivered?
You download the PDF straight after purchase and keep it on your device. There is no physical shipping, so you can start looking up parts right away.
How will I receive this Kubota B6100HST-D Parts Catalog?
It's a 138-page searchable PDF, delivered instantly after checkout. Open it on your laptop, tablet, or phone and bring it straight to the shop floor.
Am I able to print pages from this manual?
Yes. No DRM or copy protection. Print the whole catalog or just the pages you need. Any home or office printer works.
Does this Kubota B6100HST-D manual include hydraulic schematics?
This is a parts catalog, so it shows exploded parts diagrams rather than circuit schematics. It includes detailed exploded views of the hydraulic components, pump, control valve, cylinder, and oil lines, with OEM part numbers, not wiring-style circuit diagrams.
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