This is the Kubota B5100D and B5100E tractor parts catalog (publication 66496-6292-5), a 46-page bilingual English and French parts list. Each group pairs an exploded parts diagram with a numbered parts-list table giving Kubota part numbers and quantities.
The catalog covers the complete tractor: the diesel engine from crankcase to cylinder head, camshaft, pistons and crankshaft, injection and nozzle components, the clutch, transmission shafts, differential and axle cases, brakes, control valve and hydraulic pump, steering, front axle, radiator, fuel tank, and electrical parts.
Use it to identify the correct replacement part before ordering, confirm how many of each fastener or gear a group uses, and see how the assembly fits together during a repair. Delivered as a downloadable, printable PDF.
What's Inside This Kubota B5100D, B5100E Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Fuel System | Nozzle Holder Group, Speed Control Plate Group, Injection Pump Group Disassembly, Accelerator Pedal Group, Fuel Tank Group | |
| Cooling System | Radiator Group | |
| Engine | Crankcase Group, Cylinder Head Group, Gear Case Group, Breather Group, Valve, Rocker Arm Group, Camshaft Group, Piston, Crankshaft Group | |
| Electrical System | Dynamo Group, Battery Group | |
| Clutch & Transmission | Clutch Rod Group, Clutch Housing Group | |
| PTO | 3rd, 5th, PTO Shaft Group | |
| Rear Axle, Differential & Brakes | Brake Group, Brake Rod Group | |
| Front Axle & Steering | Steering Group, Front Axle Group, Front Wheel Group | |
| Hydraulics & 3-Point Hitch | Control Valve Group, Point Linkage Group | |
| Body & Operator Station | Case Cover Group, Bonnet Group | |
| Decals & Accessories | Name Plate Group | |
| Other Components | Axle Case Group, 1st Shaft, 4th Shaft Group, 2nd Shaft, Reverse Shaft Group, Main Speed Change Group, Auxiliary Speed Change Group, Oil Pressure Group 1, Panel Group, Gear Group |
Every system also includes a parts diagram and a parts list table.
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Cylinder Head Bolt Quantity | 8 units | p. 4 |
| Inlet Valve Quantity | 2 units | p. 7 |
| Exhaust Valve Quantity | 2 units | p. 7 |
| Valve Spring Quantity | 4 units | p. 7 |
| Piston Quantity | 2 units | p. 9 |
| Connecting Rod Bolt Quantity | 4 units | p. 9 |
| Crankpin Metal Quantity | 4 units | p. 9 |
| Clutch Pressure Spring Quantity | 6 units | p. 12 |
| Axle Case Spur Gear Teeth | 52 teeth | p. 16 |
| 1st Shaft Gear Teeth | 29 teeth | p. 18 |
| 2nd Shaft Gear Teeth | 34 teeth | p. 19 |
| Differential Spiral Bevel Gear Teeth | 37 teeth | p. 21 |
Kubota B5100D, B5100E Common Problems This Manual Covers
Clicks on start or sudden shutdown
A B5100 that only clicks on start or shuts off unexpectedly usually has a blown fuse, bad relay, faulty fuel shutoff solenoid, or failing key switch. The battery group covers the battery and related electrical parts.
Manual Section: Battery Group p. 44Weak or slow hydraulics
Low or contaminated fluid, a clogged strainer, or worn valve parts make the hydraulics weak and slow. The control valve group breaks out the valve internals to inspect or replace.
Manual Section: Control Valve Group p. 24Differential lock will not engage
Improper pedal travel or worn linkage can keep the differential lock from engaging. The PTO and differential shaft group shows the differential parts behind it.
Manual Section: 3rd, 5th, PTO Shaft Group p. 20Repeated fuel bleeding after service
Air in the fuel lines or a delivery restriction forces you to bleed the system again after a stall or repair. The nozzle holder and injection group identifies the injection parts involved.
Manual Section: Nozzle Holder Group p. 10Oil leaks and rebuild-level wear
Older B5100 tractors develop oil leaks that lead to seal and gasket work at the engine. The crankcase group breaks out the plugs, seals, and gaskets you renew during a rebuild.
Manual Section: Crankcase Group p. 3Steering play
Wear in the steering box and column produces excess play. The steering group identifies the parts to rebuild or replace.
Manual Section: Steering Group p. 26Frequently Asked Questions
Which tractors does this catalog cover?
It covers the Kubota B5100D and B5100E tractors in a 46-page bilingual English and French parts list, publication 66496-6292-5.
Does it cover engine parts?
Yes. The cylinder head group and other engine groups give exploded diagrams, part numbers, and quantities, such as the eight cylinder head bolts, for engine repairs. p. 4
Can I find hydraulic parts?
Yes. The control valve group breaks out the hydraulic control valve internals, useful when hydraulic function is weak or slow. p. 24
What exactly do I receive with this Kubota B5100D Parts Catalog?
A 46-page Parts Catalog as a searchable PDF, ready the moment checkout completes. Read it on a computer, tablet, or phone, with no shipping wait.
Am I able to print pages from this manual?
Yes, print as many copies as you like; there are no restrictions. Plenty of mechanics print just the section they need and carry it to the shop floor.
Are hydraulic system diagrams in this Kubota B5100D, B5100E Parts Catalog?
Yes. It includes exploded diagrams of hydraulic components and assemblies, each with part numbers.
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