Title:
KH21 Lower Track Roller (6870121750)
Description:
Maintain stable undercarriage performance and smooth track operation with the genuine-style Kubota KH21 Lower Track Roller (6870121750). Specifically designed for Kubota KH-series compact excavators, this OEM-spec roller supports the lower track chain while also distributing machine weight evenly across the undercarriage system. Because the KH21 operates in tight-access excavation, utility, and landscaping environments, maintaining reliable track rollers is essential for reducing wear, improving stability, and preventing premature undercarriage failure.
Furthermore, engineered to Kubota-equivalent factory standards, this lower track roller helps ensure consistent track alignment and smooth machine travel during operation. In addition, its heavy-duty construction is designed to withstand constant exposure to mud, dirt, debris, vibration, and moisture. As a result, operators can help maintain dependable undercarriage performance while also reducing stress on surrounding components.
Moreover, this roller supports improved travel stability and consistent track engagement during excavation tasks. 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. Additionally, its sealed bearing design helps protect internal components from contamination, supporting smoother rotation and longer service life.
Whether replacing a worn component or carrying out preventative maintenance, this KH-series lower track roller helps restore reliable track movement, improve excavator stability, and support long-term machine productivity.
Model Fitment:
Kubota KH Series Excavators
KH21
Part Details:
- Part Name: Lower Track Roller
- Kubota Part Number: 6870121750
- Alternate Part Numbers: 68701-21750 / 6870-121750 (varies by listing)
- Part Type: Excavator Lower Track / Bottom Roller
- Brand: Kubota (OEM / OEM-spec equivalent)
- Application: Undercarriage track support system
- Designed For: Kubota KH21 compact excavator
- Function: Supports and guides lower track chain during operation
- Construction: Heat-treated steel body with sealed bearings
- Feature: Dust and moisture-resistant sealing system
- Installation: Direct replacement undercarriage component
