Title:
2.5T-3.6T Lower Track Roller (W21CS41256)
Description:
Maintain strong undercarriage performance and dependable track support with the genuine Kubota 2.5T–3.6T Lower Track Roller (W21CS41256). Specifically engineered for Kubota mini excavators in the 2.5 to 3.6 tonne class, this OEM lower track roller supports and guides the track chain while also distributing machine weight evenly across the undercarriage system. Because machines in this class are frequently used in demanding construction, landscaping, and utility trenching environments, maintaining reliable track rollers is essential for ensuring stability, reducing wear, and preventing premature undercarriage failure.
Manufactured to Kubota’s exact factory specifications, this genuine lower track roller delivers precise fitment, strong durability, and consistent performance under continuous working loads. Furthermore, its heavy-duty steel construction is designed to withstand constant exposure to mud, dust, vibration, and moisture. As a result, operators can maintain smoother track movement while also reducing stress on surrounding undercarriage components.
In addition, this roller helps improve travel stability and supports consistent track engagement during excavation and grading work. Consequently, maintaining a properly functioning undercarriage system can help extend the lifespan of track assemblies while also improving machine efficiency and reducing long-term maintenance costs. Moreover, its sealed design helps protect internal bearings from contamination, supporting smoother rotation and longer service life.
Every Kubota OEM lower track roller is built for durability and reliable performance in harsh job site conditions. Whether you are replacing a worn component or completing preventative maintenance, this genuine Kubota part helps restore smooth track operation, improve excavator stability, and support long-term productivity.
Model Fitment:
Kubota Compact Excavators (Series 2 / Series 3 / Series 4)
- U25-3
- U25-3 A
- KX61-3
- KX71-3
- KX91-3
- KX91-3 A
- KX91-3 A2
- U27-4
- KX027-4
- KX030-4
- U30-3 A2
- U35-3
- U35-3 A
- U35-3 A2
- U35-3 A3
- KX101-3
- KX101-3 A
- KX101-3 A2
- KX101-3 A3
- KX101-3 A4
- U36-4
Part Details:
- Part Name: Lower Track Roller (2.5T–3.6T Class)
- Kubota Part Number: W21CS41256
- Alternate Part Number: W21CS-41256
- Part Type: Excavator Undercarriage Lower Track Roller
- Brand: Kubota Genuine Parts
- Application: Track support and undercarriage system
- Designed For: Kubota 2.5–3.6 tonne compact excavators
- Function: Supports and guides lower track chain during operation
- Construction: Heat-treated hardened steel with sealed bearing system
- Feature: Dust, mud, and moisture-resistant sealing design
- Installation: Direct replacement undercarriage component
