Part of the Kubota Parts Manuals.
Need the factory part numbers for your Kubota B7300HSD compact tractor? This 233-page parts catalog (OEM #100K0314) maps every assembly from crankcase to ROPS in a single searchable document. It runs exploded parts lists with OEM numbers, plus interchangeability symbols for cross-referencing compatible components and hydraulic parts diagrams covering the gear pump, flow dividing valve, and full HST oil circuit. Component-level breakdowns go down to the injection pump, nozzle holder, dynamo, and starter, so you order the exact sub-part instead of a whole top-level assembly. Reference weights are listed throughout: the crankcase assembly at 22 kgf, the standard piston at 0.23 kgf, and nozzle holder adjusting washers spec'd to 0.900 mm. One wrong part costs you a week. Jump to any system with bookmarks and order the right piece the first time.
What's Inside This Kubota B7300HSD Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Fuel System | Nozzle Holder and Glow Plug, Nozzle Holder, Injection Pump, Speed Control Plate, Governor, Fuel Pump, Air Cleaner, Accelerator Lever, Fuel Tank, Fuel Pipe, Fuel Filter | |
| Cooling System | Water Pump, Water Flange/Thermostat, Water Pipe, Radiator, Reserve Tank, Fan | |
| Engine | Crankcase, Oil Pan, Piston/Crankshaft, Main Bearing Case, Flywheel, Cylinder Head, Valve and Rocker Arm, Inlet Manifold, Exhaust Manifold, Camshaft, Gear Case, Lower Gasket Kit, Upper Gasket Kit, Muffler, Differential Gear Case, Front Bevel Gear Case | |
| Electrical System | Dynamo, Starter, Battery, Head Light, Hazard Light/Tail Light, Meter/Switch, Meter Kit, Meter, Wire Harness | |
| Clutch & Transmission | Clutch, Clutch Shaft/Propeller Shaft, Transmission Case | |
| PTO | 5Th Shaft/PTO Shaft, Mid PTO | |
| Rear Axle, Differential & Brakes | Rear Differential, Differential Lock Pedal, Rear Axle Case, Rear Axle, Rear Wheel, Brake | |
| Front Axle & Steering | Front Wheel Drive Shaft, Front Differential, Front Axle Case, Front Axle, Front Wheel, Steering Wheel, Steering | |
| Hydraulics & 3-Point Hitch | Hydraulic Gear Pump, Hydraulic Oil Line, Flow Dividing Valve, Hydraulic Cylinder Case, Control Valve, Hydraulic Control Lever, Top Link, Lift Rod | |
| Body & Operator Station | Head Cover, Frame, Hood, Front Grille, Side Cover, Fender LH, Fender RH, Seat Stay, Seat, Step, ROPS | |
| Decals & Accessories | Label, Accessories and Service Parts | |
| Other Components | HST, 2Nd/3Rd/4Th Shaft, Speed Change Lever, Front Drive Shaft, Lower Link |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| CRANKCASE (COMP.CRANKCASE) Weight | 22 kgf | p. 6 |
| OIL PAN (COMP.OIL PAN) Weight | 0.75 kgf | p. 8 |
| PISTON (STD) Weight | 0.23 kgf | p. 10 |
| NOZZLE HOLDER (WASHER ADJUSTING) Thickness | 0.900MM | p. 22 |
| DYNAMO (ASSY DYNAMO) Weight | 1.33 kgf | p. 52 |
| CLUTCH (COMP.DISK CLUTCH) Weight | 0.92 kgf | p. 56 |
| FUEL TANK (ASSY TANK FUEL) Weight | 2.5 kgf | p. 68 |
| STARTER (ASSY STARTER) Weight | 3.6 kgf | p. 82 |
| BATTERY (BRACKET BATTERY) Weight | 2.45 kgf | p. 86 |
| HST (ASSY HST) Weight | 15 kgf | p. 112 |
| REAR AXLE (AXLE REAR) Weight | 4.64 kgf | p. 144 |
| HYDRAULIC CYLINDER CASE (ASSY CYLINDER HYD) Weight | 12.5 kgf | p. 199 |
Kubota B7300HSD Common Problems This Manual Covers
Kubota B7300HSD hydraulic gear pump internal components needed, can't identify correct seal and rebuild part numbers
Turn to page 57 for the Hydraulic Gear Pump exploded diagram and pages 59-60 for individual component part numbers. For suction and delivery line parts connected to the pump, check pages 189-190. The hydraulic cylinder case is a separate assembly at 12.5 kgf (pages 197-199). Confirm you need gear pump internals, not lift cylinder parts, before ordering.
Manual Section: Hydraulic Gear Pump p. 57Clutch slipping or not engaging, need correct disk assembly and housing component part numbers
Check the Clutch diagram on page 55 for the full assembly layout, including clutch rod, pedal, and housing. The clutch disk assembly (COMP.DISK CLUTCH) is cataloged at 0.92 kgf on page 56; use that spec to confirm the correct line item before ordering. For clutch shaft and propeller shaft parts downstream, cross-reference the Clutch Shaft/Propeller Shaft section on page 105.
Manual Section: Clutch p. 55Can't find correct upper or lower engine gasket kit part numbers for cylinder head and crankcase seals
Locate lower gasket kit parts on pages 47-48 and upper gasket kit parts on pages 49-50; each is broken down by individual part numbers. The nozzle holder adjusting washer is listed at 0.900mm thick on page 22. Verify whether it is included in the upper kit or must be ordered as a separate line item before placing your order.
Manual Section: Lower Gasket Kit p. 47HST assembly part numbers needed for internal rebuild, can't identify correct component from exploded view
Find the HST assembly overview on page 111 and the complete component parts breakdown on pages 113-115. The full HST assembly (ASSY HST) is cataloged at 15 kgf on page 112; confirm this matches your unit before ordering individual sub-components. For HST hydraulic line and fitting part numbers, cross-reference the hydraulic oil line section on pages 193-194.
Manual Section: HST p. 1113-point hitch won't lift, need control valve and lift cylinder assembly part numbers to order
Open the Hydraulic Cylinder Case exploded view on pages 197-199 for lift cylinder part numbers; the complete assembly (ASSY CYLINDER HYD) is listed at 12.5 kgf on page 199. For control valve component parts governing lift, turn to pages 202-203. Cross-reference hydraulic control lever parts on pages 204-205 for operator-side linkage and lever part numbers.
Manual Section: Hydraulic Cylinder Case p. 197Frequently Asked Questions
What are the replacement specifications for Hydraulic gear pump?
Two part numbers cover the gear pump here. The ASSY PUMP HYDRAULIC (6C090-36300) weighs 1.2 kgf (2.64 lb). The COMP.GEAR HYD.PUMP (6C090-37202, for serial numbers >=798016) weighs 0.3 kgf (0.66 lb). p. 58
What are the replacement specifications for Clutch?
Clutch specs list two items. The COMP.DISK CLUTCH (6C090-13400) weighs 0.92 kgf (2.024 lb), and the ASSY PLATE PRESSURE (6C090-13300) weighs 2.3 kgf (5.06 lb). p. 56
What format is this manual in?
Immediate download of the complete 233-page searchable Parts Catalog. Read it on any device: laptop at your desk or phone out in the field.
Is this Kubota B7300HSD Parts Catalog printable?
Yes. The PDF carries no DRM restrictions, so print any page or section your shop needs. Works with any standard printer.
Can I find hydraulic circuit diagrams in this Kubota B7300HSD manual?
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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