Description
Overview:
This Carrier Roller is the upper undercarriage roller for Kubota mini excavators, engineered to support and guide the track chain. It is a Genuine Kubota Part designed as a direct replacement for OEM No. RC681 21900. Built from robust steel with a durable black finish and a sealed internal bearing, it delivers smooth, consistent rotation and resists site contaminants. By keeping the track aligned and sharing load across the undercarriage, it helps minimise wear on the chain and other running gear. Purpose-made for Kubota machines, it fits accurately and restores proper tracking with minimal downtime. Ideal for routine maintenance or repair on models such as the Kubota U35 and U35-4 used across construction, utilities, landscaping, and plant hire.
Key Features:
- Genuine Kubota part for assured compatibility and quality
- Direct replacement for OEM No. RC681 21900
- Heavy-duty steel roller with sealed bearing for long service life
- Smooth rotation helps minimise wear on chain, guides, and sprockets
- Precise fit to factory mounting points to reduce downtime
- Corrosion-resistant finish suitable for UK site conditions
- Straightforward installation using standard workshop tools
- Reliable performance for daily digging, grading, and loading tasks
Typical Applications:
Used to replace worn, seized, or flat-spotted upper rollers and restore smooth, accurate tracking on Kubota mini excavators. Suitable for machines working in groundworks, utilities, landscaping, agriculture, and plant hire on mixed terrain including clay, hardcore, and aggregate.
Also known as:
Top roller, upper roller, upper track roller, carrier top roller, guide roller, upper undercarriage roller.
Fits Models:
KX033-4, KX0334, KX71-3, KX71-3S, KX713, KX713S, KX91-3, KX91-3S, KX913, KX913S, U25S, U35, U35-4, U354, U35S
Alternate Part Numbers:
RC681-2190-0, RC788 21900, RC767 21900, RC681-21900, RC411 21903, RC68121900, RC41121903, RC76721900, RC78821900
Product Specifications
| L&S Part No. | RC681 21900 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Kubota |
| OEM No. | RC681 21900 |
| Unit of Sale | 1 |
| Machine Type | Excavators |
| Fits Brands | Kubota |
| Key Features | - Genuine Kubota part ensures compatibility with Kubota mini excavators - Direct replacement for OEM No. RC681 21900 - Heavy-duty steel with sealed bearing for durability - Fits models: KX033-4, KX71-3, U35, U35-4 - Corrosion-resistant finish for UK site conditions |
| Fits Models | U35 | KX033-4 | U25S | U35-4 | U35S | KX91-3s |
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