Used Kubota Parts

Kubota RTV used parts, every component photographed and graded

If your Kubota RTV is down, waiting weeks for a factory part through the dealer network is not an option when there is work to get done. That is why we pull, inspect, and photograph individual components from Kubota RTV donor machines at our Florida facility. Every SKU in our Kubota catalog is a one-of-one used OEM part, listed with condition notes and shipped with free domestic delivery. We carry components for the full RTV lineup, from the compact RTV400 and RTV500 through the workhorse RTV900 and RTVX900, up to the full-size RTV1100, RTV1140/CPX, RTV X1140, the heavy-duty RTV2250, and the gas-powered RTV XG850 Sidekick. Once a part sells, it is gone for good.

Kubota RTV model overview

Kubota Tractor Corporation, headquartered in Grapevine, Texas (formerly Torrance, California), is a subsidiary of Osaka-based Kubota Corporation. The company is best known for compact tractors and construction equipment but entered the utility vehicle market in 2004 with the RTV900, which quickly became one of the best-selling diesel-powered side-by-sides in North America. Kubota RTVs are built for property maintenance, farming, hunting, and light commercial work rather than recreational trail riding. Every RTV model except the Sidekick runs a Kubota diesel engine paired with a hydrostatic transmission (HST), a combination valued for low-speed torque and durability under load but fundamentally different from the CVT-based drivetrains used by Polaris, Can-Am, and other recreational UTV manufacturers.

The RTV lineup is narrower and more purpose-driven than what most powersports brands offer. There are no sport or performance models. Kubota builds utility vehicles designed to haul, tow, and work in conditions where reliability matters more than top speed. This also means the used parts market is driven by commercial wear and aging rather than crash damage, so the components we stock tend to be drivetrain, hydraulic, electrical, and bed/frame parts rather than cosmetic bodywork.

Models and year compatibility guide

Common failure points and frequently replaced components

RTV900 / RTVX900 (all years), overheating: This is the defining reliability issue across the Kubota RTV platform. The D902 diesel generates substantial heat, and the hydrostatic transmission adds its own thermal load. The cooling system has limited reserve capacity, particularly on the original RTV900 where the radiator is undersized for sustained towing or hill climbing. Clogged radiator fins are the single most common cause, with grass seeds, chaff, and fine debris packing the screen and cutting airflow. The electric cooling fan temperature switch is the second most common failure, often allowing engine temperature to climb past safe limits before the fan activates. Owners report the gauge reads close to the red zone under normal towing loads even when the system is functioning correctly. Aftermarket solutions include lower-temp fan switches (activating at 170F instead of the stock 205F), auxiliary electric fans, and radiator guard screens to prevent debris buildup. Head gasket failure from repeated overheating events is documented on high-hour RTV900 units, particularly 2004-2008 production.

RTV900 front hood detachment (CPSC 2005): Approximately 16,000 RTV900 units with serial numbers 10001 through 25883, produced December 2003 through October 2004, were recalled because the front hood could detach during operation and strike the driver or passenger. The remedy was a free hood inspection and replacement if necessary.

RTV-X series seat belt stay fracture (CPSC 2018): Approximately 26,900 RTV-X900, RTV-X1100, RTV-X1120D, and RTV-X1140 units sold from June 2015 through June 2017 were recalled for seat belt stay brackets that can crack under severe operating conditions. Three incidents of breakage were reported worldwide. The stay was replaced free of charge at authorized dealers.

RTV-X1100C floormat throttle interference (CPSC 2022): Approximately 48,875 model year 2013-2021 RTV-X1100C units were recalled because the floormat can warp, separate from the underlayment, or degrade in the area around the throttle pedal, causing throttle interference. Additionally, any RTV-X series with factory cast-iron A-arms was flagged for inspection and replacement. The floormat fix involved trimming and riveting the mat to the floor. One incident of loss of control resulting in minor bruising was reported.

RTV-XG850 Sidekick EPS bracket (CPSC 2023 and 2024): Two separate recalls covered the Sidekick for electric power steering support bracket failures. The 2023 recall (approximately 19,450 units in the U.S., model years 2018-2022) addressed a steering shaft that could shear if the EPS bracket separates from the frame. Five incidents were reported worldwide with no injuries. A follow-up 2024 recall covered additional 2023 production Sidekicks for the same EPS bracket issue.

RTV-series ball joint separation (CPSC 2025): Approximately 49,640 units across the RTV520, RTV-X900, RTV-X1100C, RTV-X1120, RTV-X1130, and RTV-X1140, sold from January 2021 through December 2024, were recalled for front suspension ball joints that can loosen and separate, causing complete loss of wheel support. Four incidents were reported with no injuries. This is the most recent and widest-reaching Kubota RTV recall. Any used front suspension components from these model years should be verified against the recall before installation.

RTV-X1100C fire hazard (CPSC 2016): Approximately 4,400 model year 2013-2015 RTV-X1100C units (serial numbers 10001 through 23172) were recalled because debris accumulation around the engine and exhaust area could ignite. Seven debris-related fires were reported with no injuries. The enclosed cab design of the 1100C traps heat and debris more readily than the open-cab RTV models.

Hydrostatic transmission wear (RTV900, RTVX900, RTV1100, RTV1140): The hydrostatic transmission is generally durable but is the most expensive single component to repair or replace on any diesel RTV. Loss of drive after the machine warms up is the classic symptom of internal pump wear, with the charging pump pressure dropping below the 100 PSI minimum. This typically occurs at 1,500+ hours on hard-working machines. The symptom is often misdiagnosed as a transmission failure when the root cause is worn charge pump internals or degraded hydraulic fluid. Regular fluid and filter changes are the best preventive measure.

Electrical and starting issues (all diesel models): Glow plug failure is common on cold-climate RTV900 and RTVX900 units, causing hard starts in cold weather. The glow plug relay and individual plugs should be checked if the engine cranks but will not fire in temperatures below 40F. Battery drain from parasitic loads is also reported, particularly on units with accessory lighting or radio installations that draw power through the ignition circuit.

Most replaced Kubota RTV parts

• Radiators, cooling fans, thermostats, and fan temperature switches (overheating-related, all diesel models)
• Hydrostatic transmission assemblies and charge pumps (high-hour RTV900, RTVX900, RTV1100)
• Head gaskets and cylinder heads (overheating-related failure on D902 and D1105 engines)
• Front suspension ball joints and A-arms (recall-related, RTV-X series 2021-2024 production)
• Seat belt stays and anchor brackets (recall-related, RTV-X series 2015-2017 production)
• Floormats and throttle pedal assemblies (recall-related, RTV-X1100C)
• Electric power steering units and EPS brackets (Sidekick XG850, recall-related)
• Glow plugs, glow plug relays, starters, and batteries (cold-start failures, all diesel models)
• Cargo bed components, hydraulic dump cylinders, and bed latches
• Cab doors, windshields, rear windows, and ROPS components
• CVT belts and clutch components (Sidekick XG850 only)

Explore Kubota parts by model

• RTV400 Parts
• RTV500 Parts
• RTV900 Parts
• RTVX900 Parts
• RTV1100 Parts
• RTV1140 / CPX Parts
• RTV X1140 Parts
• RTV2250 Parts
• RTV XG850 Sidekick Parts

Related Brands: Polaris • Can-Am • Arctic Cat • CFMoto

Inspected by Powersports Technicians • Only One in Stock • Ships Fast from Florida

Frequently asked questions

Q: Will RTV900 engine parts fit an RTVX900?

Both models use versions of the Kubota D902 three-cylinder diesel. The RTVX900 uses an updated D902-E4 variant with emissions compliance changes, but the block architecture is the same. Many internal engine parts including pistons, connecting rods, bearings, and gasket sets cross-reference between the two. Fuel injection components, the turbo intake system, and some external accessories differ between the E and E4 variants, so verify part numbers on those items. Frame, cab, and electrical components do not interchange between the pre-2013 RTV900 and the RTVX900.

Q: Do the RTV1100 and RTV1140 share engine and drivetrain parts?

Yes. Both models use the Kubota D1105 three-cylinder diesel engine and share the same hydrostatic transmission architecture. Engine internals, hydraulic pumps, axle assemblies, and most drivetrain components are interchangeable between the two. The primary differences are cab design (the 1100C has an enclosed cab with heat/AC options, while the 1140 has an open ROPS design) and the 1140 CPX variant's hydraulic bed dump system. Body panels, cab components, and bed hardware are model-specific.

Q: Can I use diesel RTV parts on the Sidekick XG850?

No. The Sidekick is an entirely different platform from every diesel RTV. It uses a gasoline engine with a CVT transmission instead of the diesel and hydrostatic setup found on the RTV900, 1100, and 1140 families. The frame geometry, suspension, electrical system, and drivetrain share nothing with the diesel models. The only components that might physically interchange are generic hardware and some aftermarket accessories like mirrors, lights, and hitch receivers. Always treat the Sidekick as a standalone platform when sourcing parts.

Q: How do I know if a used RTV-X is affected by the 2025 ball joint recall?

The May 2025 CPSC recall covers RTV520, RTV-X900, RTV-X1100C, RTV-X1120, RTV-X1130, and RTV-X1140 units sold between January 2021 and December 2024, totaling approximately 49,640 vehicles. Serial numbers for affected units are listed on the Kubota safety notices page. If you are purchasing a used RTV-X from this production window, or used front suspension parts from one, verify with an authorized Kubota dealer that the ball joint inspection and repair was completed. The defect can cause the front suspension to separate without warning.

Q: What causes the hydrostatic transmission to lose power after warming up?

This symptom, where the RTV drives normally when cold but gradually loses propulsion as the hydraulic fluid warms, typically indicates wear in the charging pump or main pump internals of the hydrostatic transmission. Warm fluid is thinner and leaks past worn seals and clearances that cold, thick fluid can still pressurize. The diagnostic check involves measuring charge pump pressure at the test port on the transmission housing. It must hold 100 PSI or above. If pressure drops below spec when warm, the pump internals need inspection and likely replacement. Regular hydraulic fluid and filter changes extend transmission life significantly.