Part of the Kubota Parts Manuals.
Every part number in this Kubota B2100D Parts Catalog ties back to an exploded view, so you order once and order right. Engine coverage spans the crankcase through dynamo with full component detail. Drivetrain takes another 48 pages across the clutch shaft, PTO shaft, rear differential, and axle cases, while 20 pages break down the hydraulics: pump internals, control valve component parts, and the full steering oil line routing. Chassis detail runs 58 pages through front and rear axles, brake pedals, the differential lock, and three front wheel options (6-12, 23x8.50-12, 21x8.00-10). The standard front rim is 6-12, the rear is 9.5-16, and the main fuse is 30A. Bookmarked by system and keyword-searchable, it opens on a tablet at the bench: tap the section and read the part number straight off the diagram, no squinting at photocopies.
What's Inside This Kubota B2100D Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Fuel System | Fuel Camshaft and Governor Shaft, Stop Solenoid, Injection Pump, Governor, Speed Control Plate, Nozzle Holder and Glow Plug, Nozzle Holder, Air Cleaner, Accelerator Lever, Fuel Tank, Fuel Pipe, Fuel Filter | |
| Cooling System | Water Flange and Thermostat, Water Pump, Fan, Water Pipe, Radiator | |
| Engine | Crankcase, Oil Pan, Cylinder Head, Gear Case, Main Bearing Case, Camshaft and Idle Gear Shaft, Piston and Crank Shaft, Flywheel, Valve and Rocker Arm, Inlet Manifold, Exhaust Manifold, Upper Gasket Kit, Lower Gasket Kit, Muffler, Differential Gear Case, Bevel Gear Case | |
| Electrical System | Dynamo, Alternator, Starter, Battery, Panel Board, Head Light, Tail Light/Hazard Light/Working Light, Electrical Wiring, Starter Relay Kit | |
| Clutch & Transmission | Clutch, Clutch Rod, Clutch Pedal, Clutch Housing, Transmission Case, Clutch Shaft/Propeller Shaft, Main Gear Shift Fork, Main Gear Shift Lever, Range Gear Shift Lever, PTO Gear Shift Lever | |
| PTO | Ht Shaft/PTO Shaft, Mid PTO | |
| Rear Axle, Differential & Brakes | Rear Axle Case, Rear Differential, Rear Axle, Brake, Parking Brake Lever, Brake Pedal, Differential Lock Pedal, Rear Wheel | |
| Front Axle & Steering | Front Wheel Propeller Shaft, Front Wheel Drive Lever, Front Differential, Front Axle Case, Front Axle, Tie Rod, Steering Handle, Steering Controller, Front Wheel | |
| Hydraulics & 3-Point Hitch | Hydraulic Pump, Position Control Lever, Hydraulic Oil Line, Flow Divider Valve, Hydraulic Cylinder Case, Control Valve, Lift Rod, Top Link | |
| Body & Operator Station | Head Cover, Frame, Front Grille, Hood, Side Cover, Fender, Seat Support, Seat, Step, ROPS | |
| Decals & Accessories | Label, Accessories and Service Parts | |
| Other Components | 2nd Shaft/3rd Shaft/4th Shaft, Front Drive Shaft, Drag Link, Lower Link |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Fuse | 30A | p. 118 |
| Fuse Auto | 5A | p. 118 |
| Bulb Light | 27W | p. 116 |
| Front Wheel Size | 6-12 | p. 4 |
| Rear Wheel Size | 9.5-16 | p. 4 |
| Piston Oversize | +0.50mm | p. 23 |
| Metal Crankpin Undersize | -0.20mm SET | p. 23 |
| Nozzle Holder Adjusting Washer Thickness | 0.10MM | p. 44 |
| Tail Light Bulb Power Rating | 27W | p. 116 |
| Main Fuse Rating | 30A | p. 118 |
| Gear Clutch Shaft Tooth Count | 16T | p. 140 |
| Gear Reverse Tooth Count | 16-20T | p. 152 |
Kubota B2100D Common Problems This Manual Covers
Kubota B2100D won't start and clicks at key-on, stop solenoid and starter relay part numbers unknown
Check the Stop Solenoid exploded view on pages 28-30 to identify the solenoid body and connector part numbers. Cross-reference the Electrical Wiring diagram on page 117 to trace relay locations, and verify the main 30A fuse (page 118) is included in your parts order. The Stater Relay Kit on page 268 lists the complete optional relay upgrade kit.
Manual Section: Stop Solenoid p. 28Brake pedal goes soft or tractor pulls to one side, rear brake assembly part numbers needed
Pull the Brake exploded view on pages 158-159 to identify lining, cam, and spring part numbers for the rear axle assembly, then check the Brake Pedal diagram on page 175 for pedal linkage hardware. Standard rear wheel size is 9.5-16 (page 259), so confirm your axle configuration matches before ordering brake components.
Manual Section: Brake p. 158Front wheel wobbles and shimmies at low speed, hub and bearing part numbers for 6-12 rim unclear
Match your rim against the 6-12 front wheel spec, then work the Front Axle exploded view on pages 187-188 and the Front Axle Case on page 184 to locate hub bearing, kingpin, and spindle part numbers. The Front Wheel diagram on page 253 covers rim and hub cap assembly parts.
Manual Section: Front Axle p. 187Loss of drive in one or more gears, clutch shaft and transmission component part numbers unclear
Trace the Transmission Case parts diagram on pages 131-133 and the Clutch Shaft/Propeller Shaft section on page 139 to identify gear and shaft part numbers. The clutch shaft runs a 16T gear (page 140); confirm this tooth count matches your assembly before ordering replacement shafts or shift forks on page 153.
Manual Section: Transmission Case p. 131Frequently Asked Questions
What are the part numbers for the fuel, oil, and other filters on a Kubota B2100?
The catalog breaks out filters by function. Oil filter: 16261-32114. Fuel filter assembly: 15751-43010, with 15231-43560 as the replaceable element. The air cleaner element is 67980-82630, and the hydraulic oil filter shows up as "ASSY CARTRIDGE OIL," part number 15241-32090. p. 90
What are the replacement specifications for fuses?
Four fuse ratings show up in the wiring diagrams: 30A (1G111-65720), 5A (66426-80010), 10A (36730-75550), and 15A (35820-75560). The Canadian [CA] model swaps the 30A for a 50A fuse (17478-60080). p. 118
What part numbers do I need for the stop solenoid and starter relay on a Kubota B2100D?
Check the Stop Solenoid exploded view on pages 28-30 for the solenoid body and connector part numbers. Cross-reference the Electrical Wiring diagram on page 117 for relay locations, and verify the main 30A fuse (page 118) is in your parts order. The Starter Relay Kit on page 268 lists the complete optional relay upgrade kit. p. 28
Which part numbers cover the rear brake assembly on a Kubota B2100D?
Pull the Brake exploded view on pages 158-159 to identify lining, cam, and spring part numbers for the rear axle assembly, then check the Brake Pedal diagram on page 175 for pedal linkage hardware. Standard rear wheel size is 9.5-16 (page 259); confirm your axle configuration matches before ordering brake components. p. 158
How quickly can I access this manual after buying?
A 269-page searchable PDF, ready to download the moment you buy. It works on any device, so you can pull it up on your phone while you are under the hood. No shipping, no waiting.
Is this Kubota B2100D Parts Catalog printable?
Yes. The PDF carries no DRM restrictions, so you can print any page or section you need for the shop. Any standard printer handles it.
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