Part of the Kubota Repair Manuals.
This Kubota workshop manual covers the RTV-X900 and RTV-X1120D utility vehicles built from 2013 to 2021, running the Kubota D902 and D1105 diesel engines. Across 488 pages it follows the factory service documentation (publication 9Y111-26171), organized system by system.You get full engine work, the hydrostatic transmission, front and rear axles, brakes, hydraulic power steering, the hydraulic lift system, and complete wiring diagrams for both models. The General section carries product identification, lubricants, and tightening torques, and verified capacities include an 18.0 L hydraulic tank, a 7.0 L transmission case, and a 6.1 L cooling system.This is the reference owners and independent mechanics need to diagnose, service, and rebuild the RTV-X900 and RTV-X1120D correctly, with the torque values and procedures Kubota specifies.
What's Inside This Kubota RTV-X900, RTV-X1120D Manual
| System | Pages | Key Topics |
|---|---|---|
| Record of Revisions | 3 | Code Number of This WSM Has Been Changed From 9Y121-09469 to 9Y121-26170, Added 200 Hrs or 3000 Km Maintenance Item; Suspension Arm Bushings |
| Information | 4-19 | - |
| General | 20-101 | Product Identification (Wiring, Battery, Fuse, Connector, Color of Wiring), Lubricants |
| Engine | 102-210 | Engine Body (Rtv-X900, Half-Floating Head Cover, Closed Breather, Piston, Oil Pan, Rtv-X1120D, Governor), Lubricating System, Cooling System, Fuel System |
| Transmission | 211-300 | Checking Charge Relief Pressure, Checking Neutral, Checking Travelling Speed, Checking Engine Cable, Checking Speed Control Pedal Stroke, Checking Range Gear Shift Lever Position, Checking Four Wheel Drive Lever Position, Checking Differential Lock Cable |
| Rear Axle | 301-311 | Adjusting Rear Shock Absorber, Preparation, Rear Wheel, Rear Knuckle Case, Checking Shock Absorber |
| Brakes | 312-338 | Knuckle, Rear Brake, Master Cylinder, Brake Oil, Parking Brake |
| Front Axle | 339-368 | Structure, Front Suspension, Limited Slip Differential (Structure, Operation), Troubleshooting, Servicing Specifications, Tightening Torques |
| Steering | 369-402 | Structure (Rtv-X900, Rtv-X1120D), Hydraulic Circuit, Steering Controller, Steering Cylinder |
| Hydraulic System | 403-424 | Structure (Rtv-X900, Rtv-X1120D), Hydraulic Circuit (Rtv-X900, Hydraulic Pump, Hydraulic Lift Cylinder |
| Electrical System | 425-488 | Wiring Diagram (Rtv-X900, Rtv-X1120D), Electrical Circuit |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Tightening Torques (Metric Screws, Bolts and Nuts - Ordinary, M10) | 39 to 44 N·m | p. 38 |
| Engine start system check | every 50 hours / 1 year | p. 39 |
| Greasing | every 50 hours | p. 39 |
| Valve Clearance (Cold) | 0.145 to 0.185 mm | p. 119 |
| Engine Oil Pressure (Allowable Limit) | 147 kPa | p. 122 |
| Injection Nozzle Injection Pressure | 13.73 to 14.70 MPa | p. 123 |
| RTV-X1120D | ||
| Fuel Capacity | 6.4 L | p. 30 |
| Engine Compression Pressure | 3.73 to 4.11 MPa | p. 124 |
| RTV-X900 | ||
| Engine Compression Pressure | 3.53 to 4.02 MPa | p. 119 |
| Transmission Charge Relief Valve Setting Pressure | 0.43 to 0.83 MPa | p. 256 |
Kubota RTV-X900, RTV-X1120D Common Problems This Manual Covers
Hard starting or low compression
The diesel RTV-X models can be slow to start when glow plugs, injectors, or compression fall off spec. The Engine section covers the fuel system, compression checks, and injection nozzle pressure.
Manual Section: Engine p. 102Weak or creeping hydrostatic drive
Lost drive, creep, or weak travel usually points to the HST and its charge relief pressure. The Transmission section provides troubleshooting, servicing specifications, and tightening torques.
Manual Section: Transmission p. 211Soft or long brake pedal
A long or soft pedal points to worn friction surfaces, low brake fluid, or a master cylinder fault. The Brakes section covers the master cylinder, brake oil, and parking brake service.
Manual Section: Brakes p. 312Heavy or wandering steering
Hard steering or wander can come from the hydraulic steering circuit, controller, or cylinder. The Steering section details the hydraulic circuit and steering components for both models.
Manual Section: Steering p. 369Slow or weak cargo lift
A slow or weak bed lift usually traces to the hydraulic pump or lift cylinder. The Hydraulic System section covers the circuit, hydraulic pump, and lift cylinder.
Manual Section: Hydraulic System p. 403Front axle or LSD noise
Noise or binding from the front end can come from the front axle or its limited slip differential. The Front Axle section provides structure, troubleshooting, and servicing specifications.
Manual Section: Front Axle p. 339Electrical and charging faults
Dead accessories, dim lights, or no-start faults are traced through the wiring diagrams. The Electrical System section provides full diagrams and circuits for both models.
Manual Section: Electrical System p. 425Frequently Asked Questions
Which models and years does this cover?
It covers the Kubota RTV-X900 and RTV-X1120D utility vehicles from 2013 to 2021, with the D902 and D1105 diesel engines. The 488-page manual carries publication number 9Y111-26171.
How much oil does the engine hold?
With the filter changed, the RTV-X900 crankcase holds 3.1 L and the RTV-X1120D holds 4.1 L. Full lubricant and capacity data is in the General section. p. 20
Are wiring diagrams included?
Yes. The Electrical System section provides complete wiring diagrams and electrical circuits for both the RTV-X900 and RTV-X1120D. p. 425
Does it include tightening torques?
Yes. The General section lists tightening torques for metric and standard fasteners, plus hydraulic fittings and plugs. p. 20
What format is this Kubota RTV-X900 manual in?
Immediate download of the complete 488-page searchable Workshop Manual. Open it on any device, from a laptop at your desk to a phone in the field.
Is this Kubota RTV-X900 manual print-friendly?
Yes, print as many copies as you want; there are no restrictions. Plenty of mechanics print just the section they need and carry it to the shop floor.
Can I find wiring schematics in this Kubota RTV-X900 manual?
Yes. Full electrical schematics are included, with wire colors, connector locations, and circuit descriptions.
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