This is the illustrated parts catalog for the Kubota G1800 diesel riding mower, a 193 page reference that matches exploded diagrams to Kubota part numbers for the whole machine. It runs from the crankcase, injection pump, and cooling system through the HST transmission, rear axle, brakes, steering, hydraulics, and mower related hardware.
Every parts page gives the reference number, part number, quantity per assembly, and the serial number range a part fits, plus country codes for region specific variations. Some components changed during the G1800 production run, so the serial ranges keep you from ordering an obsolete or incompatible part.
Use it to track down the G1800 drive shaft and hydrostatic parts owners replace most, confirm a number before you buy, and rebuild neglected assemblies with the confidence that the pieces belong together.
Complete the set for your G1800
- Repair Manual: Kubota G1700–G2000 Series Workshop Manual (incl. Wiring)
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Clutch & Transmission | Transmission Case, Universal Joint/HST Fan | |
| Fuel System | Nozzle Holder/Glow Plug, Nozzle Holder, Injection Pump, Speed Control Plate, Governor, Stop Solenoid, Air Cleaner, Accelerator Lever, Fuel Tank, Fuel Pipe, Speed Control Pedal | |
| Cooling System | Water Pump, Water Flange/Thermostat, Radiator | |
| Engine | Crankcase, Oil Pan, Piston/Crankshaft, Main Bearing Case, Flywheel, Cylinder Head, Valve/Rocker Arm, Head Cover, Inlet Manifold, Exhaust Manifold, Camshaft, Gear Case, Upper Gasket Kit, Lower Gasket Kit, Muffler, Steering Gear Case | |
| Electrical System | Dynamo, Starter, Battery, Light, Wire Harness | |
| PTO | Rear PTO, PTO Brake | |
| Rear Axle, Differential & Brakes | Rear Axle Case, Rear Axle, Rear Wheel, Brake Shaft, Brake, Brake Rod, Brake Pedal | |
| Front Axle & Steering | Front Axle/Knuckle Arm, Front Wheel, Steering Wheel | |
| Hydraulics & 3-Point Hitch | Control Valve, Hydraulic Pipe 1, Hydraulic Pipe 2, Lift Cylinder, Hydraulic Outlet, 3-Point Linkage | |
| Loader, Backhoe & Attachments | Mower Swing Stopper | |
| Body & Operator Station | Dashboard, Frame, Hood, Panel, Fender, Seat | |
| Decals & Accessories | Label, Accessories and Service Parts | |
| Other Components | Cruise Control Plate, Cruise Control Lever, Mower Assist Spring |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Injection Pump Shim Thickness (S.No. <=489915) | 0.15MM | p. 42 |
| Rear Axle Weight (2WS, S.No. >=14614) | 3 kgf | p. 130 |








