Title:
Kubota back and front bush (KU-W25US04063)
Description:
The Kubota back and front bush (KU-W25US04063) is a heavy-duty pivot component engineered to maintain precise alignment between moving linkage parts. It installs within critical joint locations—such as suspension arms, loader linkages, or chassis mounting points—where it absorbs load, reduces friction, and prevents direct metal-to-metal contact.
Because this bush operates under constant stress and movement, it plays a vital role in protecting surrounding pins, shafts, and housings from premature wear. As a result, it helps maintain smooth articulation, reduces vibration, and improves overall machine control. Additionally, its wear-resistant construction ensures long service life even in demanding environments like construction sites, farms, and utility work.
Moreover, replacing worn bushes with KU-W25US04063 restores proper tolerances within the joint assembly. This not only improves operational efficiency but also prevents secondary damage to adjacent components, reducing long-term maintenance costs.
Model Fitment:
The KU-W25US04063 bush is primarily associated with Kubota utility vehicles (RTV range) and may also appear in linkage or suspension assemblies depending on configuration. It is commonly referenced as a heavy-duty A-arm or linkage bush .
Primary Fitment – Kubota RTV Utility Vehicles
- Kubota RTV-X Series (e.g., RTV-X900, RTV-X1100, RTV-X1120)
- Kubota RTV900 / RTV1100 Series
- Kubota RTV1140 and similar multi-purpose utility vehicles
These machines use bushes in suspension arms and chassis pivot points to handle terrain-induced loads and vibration.
Secondary / Conditional Fitment (Application-Based)
Depending on machine configuration and assembly design, similar bushings are also used in:
- Kubota compact excavators (pivot joints, bucket linkages, or arm connections)
- Kubota mini diggers (boom, dipper, and bucket pivot points)
- Kubota compact tractors with loader or backhoe attachments
For example, Kubota mini excavators such as:
- KX Series (KX36, KX41, KX61)
- U Series (U10, U15, U25)
use comparable bush sizes and functions across multiple pivot positions
Part Details:
- Part Number: KU-W25US04063
- Component Type: Back and front bush
- Function: Supports pivot points and reduces wear between metal components
- Material: High-strength, wear-resistant metal alloy
- Installation: Direct replacement for worn or damaged bushings
- Performance Benefit: Enhances stability, minimizes vibration, and extends service intervals
