Part of the Kubota Parts Manuals.
This is the factory parts catalog for the Kubota B7100HST-D compact diesel tractor, the old type edition covering B7100HST-D up to serial 60163 and B7100HST-E up to serial 20024. It is a 146 page PDF you download and keep, built from Kubota's own exploded diagrams and part number tables.The catalog runs through the whole machine, from the crankcase, cylinder head and injection pump to the hydrostatic transmission, control valve, oil pressure pump, steering, clutch and electrical parts. Each section pairs a numbered illustration with the matching part numbers, quantities and serial number ranges.B7100HST parts split between old and new style serial ranges, which trips up a lot of owners, so matching the correct diagram to your serial number matters. Use this catalog to service the HST, trace a hydraulic leak, cure an electrical fault or replace wear items, and print only the pages you need for the repair in front of you.
What's Inside This Kubota B7100HST-D Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Clutch & Transmission | Clutch, Transmission Case, Clutch Rod, 1st Shaft, 4th Shaft, 2nd Shaft, Reverse Shaft, Aux. Speed Change, Rotary Speed Change, Hydro Static Transmission, Speed Change 1, Speed Change 2, Clutch Housing | |
| Fuel System | Nozzle Holder, Injection Pump, Speed Control Plate, Governor, Accelerator Pedal, 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, Bevel Gear Case | |
| Electrical System | Dynamo, Starter, Battery | |
| PTO | 3rd, 5th, PTO Shaft | |
| Rear Axle, Differential & Brakes | Axle Case, Brake, Brake Rod, Front Axle Case, Rear Wheel | |
| Front Axle & Steering | Steering, Front Wheel Support, Front Axle Arm, Knuckle Arm, Front Differential, Front Wheel | |
| Hydraulics & 3-Point Hitch | Oil Pressure Pump, Control Valve, 3-Point Linkage | |
| Body & Operator Station | Case Cover, Seat, Fender, Bonnet, Panel | |
| Decals & Accessories | Name Plate, Accessory and Service Parts | |
| Other Components | Drive Case, Wheel Hub, Differential, Oil Pressure Pipe, Oil Pressure 1, Oil Pressure 2, Bevel Gear, Drive Shaft |
Kubota B7100HST-D Common Problems This Manual Covers
Hydraulic fluid leaks from the control area
Owners report fluid leaking from the hydraulic control area on the B7100 HST. The Control Valve section shows the valve body, spools and seals so you can order the parts that stop the leak.
Manual Section: Control Valve p. 82Weak hydraulic lift or steering
A worn or oil starved pump leaves the lift and steering weak or erratic. The Oil Pressure Pump section breaks down the hydraulic pump parts for a correct rebuild or replacement.
Manual Section: Oil Pressure Pump p. 50Tractor will not move or HST is weak
A weak hydrostatic drive can leave the tractor barely moving from internal wear or fluid problems. The Hydro Static Transmission section identifies the HST unit and its parts.
Manual Section: Hydro Static Transmission p. 80Lift lowers slowly under load
Slow lowering or a lift that will not hold traces to worn valve and circuit parts. The Oil Pressure 1 section shows the hydraulic pressure line and valve components with part numbers.
Manual Section: Oil Pressure 1 p. 84No start or engine dies unexpectedly
Hard starting or a sudden shutdown often points to a fuse, relay, fuel shutoff solenoid or key switch. The Starter section lays out the starter and related electrical parts.
Manual Section: Starter p. 48Steering play and stiffness
Years of use leave slop and stiffness in the steering. The Steering section identifies the box, shaft and linkage parts so you can replace worn items accurately.
Manual Section: Steering p. 88Frequently Asked Questions
Which serial numbers does this catalog cover?
It is the old type catalog, for B7100HST-D up to serial 60163 and B7100HST-E up to serial 20024. Parts list by Kubota part number with serial ranges so you match your machine.
Does it include torque specs and repair procedures?
This is a parts catalog, so it provides exploded diagrams, part numbers and component weights rather than repair steps or torque tables. It is built for identifying and ordering the correct parts.
Where are the hydrostatic transmission parts?
The Hydro Static Transmission section breaks down the HST unit and its parts, which is where to look when the tractor will not move or the drive is weak. p. 80
Can I identify the hydraulic pump parts?
Yes. The Oil Pressure Pump section separates the hydraulic pump into its body, gears and seals so you can order what a weak lift or steering circuit needs. p. 50
What format is this manual in?
A 146-page Parts Catalog in searchable PDF, ready to download the moment checkout completes. Open it on a computer, tablet, or phone, with no shipping wait.
Can I print this manual?
Yes. The PDF carries no DRM, so you can print any page or section you need for the shop on any standard printer.
Are hydraulic system diagrams in this Kubota B7100HST-D Parts Catalog?
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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