Title:
500HR SERVICE KIT FOR KX042-4 (KU-W21CK10221)
Description:
Maintain dependable digging performance and long-term reliability with the genuine Kubota KX042-4 500HR Service Kit (KU-W21CK10221). Specifically designed for scheduled 500-hour maintenance on Kubota KX042-4 mini excavators, this OEM service kit includes the essential filters and service components required to support clean engine operation, efficient fuel delivery, and stable hydraulic system performance. Because the KX042-4 is widely used in construction, landscaping, and utility trenching applications, regular servicing is essential for maintaining productivity and reducing unexpected downtime.
Engineered to Kubota’s exact factory specifications, this genuine maintenance kit helps maintain optimal oil circulation, effective filtration, and consistent system protection. Furthermore, replacing service components at the 500-hour interval helps reduce engine strain, improve hydraulic responsiveness, and support smoother machine operation under demanding workloads. As a result, operators benefit from improved reliability, better efficiency, and extended service life of key components.
In addition, this genuine Kubota service kit helps protect critical systems from dirt, debris, moisture, and other contaminants that can gradually reduce performance over time. Consequently, maintaining clean fluids and effective filtration supports longer internal component life while ensuring stable and efficient excavation performance in harsh job site conditions. Moreover, genuine Kubota OEM parts ensure precise fitment and dependable compatibility, making servicing straightforward and efficient.
Every component in this Kubota OEM service kit is built for durability and consistent performance in demanding environments. Whether performing scheduled maintenance or preventative servicing, this genuine Kubota 500-hour kit helps restore factory-level reliability, improve efficiency, and support long-term productivity.
Model Fitment:
Kubota Compact Excavators
KX042-4 (50156~) Without A/C
KX042-4 (50156~) With A/C
Kit Contents:
- 1x RD159-51022 – Fuel – Filter
- 1x RD159-51930 – Fuel – Pre-filter O-ring
- 1x 04817-00090 – Fuel – Pre-filter O-ring
- 1x RD159-51940 – Fuel – Pre-filter (paper to be replaced)
- 1x RD411-62150 – Hydraulic – Breather Filter
- 1x 04816-50300 – Hydraulic – Filler plug seal
- 1x 04717-00810 – Hydraulic – Breather filter seal
- 1x RD158-42270 – Engine – External air filter
- 1x RD158-42280 – Engine – Internal air filter
- 1x W21ES-O1640 – Engine – Oil filter
- 1x 15451-96670 – Engine drain seal
