Komatsu Excavator Front Idlers
Aftermarket front idlers (idler wheel) for Komatsu excavators. This page lists 3 OEM part numbers, so you can match your machine to the right number and ask for a quote.
Front idlers guide the track chain and work with the track adjuster to maintain correct track tension.
Komatsu front idler part numbers by model
| Model | OEM part number | Also fits | Class |
|---|---|---|---|
| Komatsu PC200-6 | 20Y-30-13122, 20Y-30-13120 | – | 20 t |
| Komatsu PC300-6 | 207-30-53112 | – | 30 t |
When to replace front idlers
- Center guide ridge worn low or sharp
- Running surfaces worn so the links ride low
- Oil leaking at the seals
- Cracks at the rim
What to confirm before ordering
- OEM number on the old idler or in the parts book
- Idler only, or idler with yoke and bearing blocks
- Outside diameter and overall width
- Machine model and serial number
Part numbers can change within a model series. If your model is not listed, or you are unsure, send the OEM number or machine serial number and we will check it.
Ordering
| MOQ | 10 pcs per part number; mini excavator parts (up to 6 t) from 1 set per machine |
|---|---|
| Lead time | 7–25 days, depending on part type and quantity |
| Warranty | 12 months |
| Payment | T/T, L/C |
| Shipping port | Xiamen |