Part of the Kubota Parts Manuals.
This is the Kubota parts catalog for the B2150HSD compact tractor, a 310-page illustrated PDF built for identifying and ordering the exact replacement parts for your machine. Every subsystem is broken out into its own exploded diagram with reference numbers, Kubota part numbers, quantities, and the serial number ranges each part fits.Coverage runs the full length of the tractor: the diesel engine, fuel and cooling systems, electrical harness and starter, clutch, transmission and HST, propeller and drive shafts, front and rear axles, PTO, brakes, and the hydraulic gear pump. Country-code notes tell you which parts apply to US, Canadian, Australian, and other market versions.With 145 bookmarks and a full product index, this catalog lets you match a worn component to its diagram and order it correctly the first time.
What's Inside This Kubota B2150HSD Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Clutch & Transmission | Clutch, Clutch Rod, Clutch Pedal, Clutch Housing, Transmission Case, Transmission Case Cover, HST, 1St Shaft/2Nd Shaft, 3Rd Shaft, 4Th Shaft, Neutral Holder, Speed Change Plate, Range Gear Shift Lever, Range Gear Shift Fork, Clutch Disk, Shift Lever | |
| Fuel System | Nozzle Holder, Fuel Camshaft, Injection Pump, Engine Stop Lever, Speed Control Plate, Governor, Air Cleaner, Engine Stop Rod, Accelerator Lever, Fuel Tank, Fuel Pipe 1, Fuel Filter, Fuel Pipe 2, Speed Control Pedal | |
| Cooling System | Water Pump, Water Flange/Thermostat, Fan, Water Pipe, Radiator | |
| Engine | Crankcase, Oil Pan, Piston/Crankshaft, Main Bearing Case, Flywheel, Cylinder Head, Valve/Rocker Arm, Cylinder Head Cover, Inlet Manifold, Exhaust Manifold, Camshaft, Gear Case, Upper Gasket Kit, Lower Gasket Kit, Muffler, Bevel Gear Case | |
| Electrical System | Dynamo, Alternator, Starter, Battery, Light, Working Light, Panel/Switch, Panel Board, Wire Harness | |
| PTO | PTO Shaft, Mid PTO, Front PTO, Front Wheel Drive Lever/PTO Lever, PTO Fork Shaft | |
| Rear Axle, Differential & Brakes | Rear Differential, Rear Axle, Rear Axle Case, Rear Wheel, Brake, Brake Rod, Brake Pedal, Brake Interlocker, Front Axle Case | |
| Front Axle & Steering | Propeller Shaft, Front Drive Shaft/6Th Shaft, Front Drive Fork, Front Axle Arm, Front Differential, Front Drive Shaft, Front Wheel, Manual Steering, Power Steering | |
| Hydraulics & 3-Point Hitch | Hydraulic Gear Pump, Hydraulic Pipe, Hydraulic Block, Lift Arm, Hyd.Cylinder Cap, Control Valve, Control Valve1, Control Valve2, Control Valve3, Top Link, Lower Link/Lift Rod, Hitch, Drawbar | |
| Body & Operator Station | Front Axel Frame, Front Weight Bracket, Hood, Hood Cover Rear, Hood Front, Hood Side, Dust Cover, Hood Support, Fender, Seat, Step, ROPS | |
| Decals & Accessories | Label 1, Label 2, Accessories and Service Parts | |
| Other Components | Tension Pulley, 7Th Shaft, Shift Set Lever, Bi-Speed Turn Lever, Diff.Lock Pedal, Bevel Gear Shaft, Bi-Speed Turn Case, Kunckle Arm, Check Chain, Lace |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Fuse Rating | 15A | p. 115 |
| Piston Oversize | +0.5MM | p. 11 |
| Crankpin Metal Undersize | -0.2MM | p. 11 |
| Nozzle Adjusting Washer Thickness (Min) | 1.00MM | p. 24 |
| Nozzle Adjusting Washer Thickness (Max) | 1.95MM | p. 24 |
| Fuse Auto Rating | 15A | p. 115 |
| Transmission Case Shim Thickness | 0.2MM | p. 125 |
| 1st Shaft Tooth Count | 13T | p. 137 |
| Rear Bevel Gear Ratio | 6-37T | p. 175 |
| Front Bevel Gear Ratio | 7-34T | p. 211 |
| Bi-Speed Turn Clutch Gear Tooth Count | 17T | p. 215 |
Kubota B2150HSD Common Problems This Manual Covers
Engine cranks but will not start
A no-start commonly traces to a blown fuse, failed relay, bad fuel shutoff solenoid, or a key switch fault rather than the starter. The panel and switch diagrams identify the switches and related hardware by part number.
Manual Section: Panel/Switch p. 110No crank or intermittent crank
Intermittent cranking often points to the starter or its solenoid and internal components. The starter section provides the exploded view and part numbers so you can rebuild or replace the correct piece.
Manual Section: Starter p. 98Loss of drive or weak hydrostatic response
Weak or lost drive can come from wear inside the hydrostatic transmission. The HST section breaks the unit down into its components so you can identify the worn part and order it accurately.
Manual Section: HST p. 128Hydraulic functions slow or weak
Slow lift or loader response can follow pump or valve wear once fluid and filter service is ruled out. The hydraulic gear pump diagrams show the pump assembly and its internal parts for replacement.
Manual Section: Hydraulic Gear Pump p. 69Hard starting from fuel starvation
A clogged fuel filter or restricted fuel path can starve the engine and cause hard or no starting. The fuel filter section identifies the filter and related fittings by part number for replacement.
Manual Section: Fuel Filter p. 90Slipping or worn clutch
A clutch that slips or drags is a common wear item on a used tractor. The clutch section provides the exploded diagram and part numbers for the disc, cover, and related hardware.
Manual Section: Clutch p. 67Frequently Asked Questions
Which tractor does this catalog cover?
It is the parts catalog for the Kubota B2150HSD compact tractor. It documents parts across the engine, transmission and HST, axles, hydraulics, electrical system, brakes, and steering for that model.
Does it include exploded diagrams and part numbers?
Yes. Each subsystem has its own illustrated diagram with reference numbers, Kubota part numbers, and quantities, and the all product index lets you jump to the group you need. p. 2
How do I know a part fits my serial number?
The instructions for parts books explain the S.No. column, which shows the serial number range each part fits, plus the interchangeability and country-code notes so you order the right version. p. 1
Can I find hydrostatic transmission parts for a rebuild?
Yes. The HST section breaks the hydrostatic transmission into its component parts with exploded views and Kubota part numbers, so you can identify the internals you need when drive gets weak.
Does it cover the hydraulic pump and clutch wear parts?
Yes. The hydraulic gear pump and the clutch each get their own exploded diagram with reference and part numbers, which are the usual wear points behind slow lift or a slipping clutch.
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