Komatsu PC30MR-2 Track Roller – 21U-30-31301
OEM: 21U-30-31301 · Also written as: 21U3031301 · Updated
The Komatsu PC30MR-2 Track Roller (bottom roller) is an aftermarket replacement listed against OEM part number 21U-30-31301. It fits PC30MR-2, PC27MR-2, PC35MR-2, PC20MR-1 (3 t class). MOQ 1 set per machine, lead time 7–25 days.
Specifications
| Flange type | Single flange |
|---|
Reference data from the machine maker's parts information and published parts listings for this number. We confirm it against your old part or serial number before production.
OEM Numbers and Fitment
| OEM part number | Brand | Fits |
|---|---|---|
| 21U-30-31301 | Komatsu | PC30MR-2, PC27MR-2, PC35MR-2, PC20MR-1 |
What to confirm before ordering
- OEM number on the old roller or in the parts book
- Single-flange or double-flange: many machines use both
- Quantity per side: long-track (LC) machines often carry more rollers
- Machine model and serial number
Ordering
| Material and hardness | Confirmed for this part number on your quote |
|---|---|
| MOQ | 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 |
Related guides
Other undercarriage parts for Komatsu PC30MR-2
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Komatsu PC450-7 Track Roller
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Also fits: PC450LC-7, PC450-8, PC450LC-8
Full Komatsu PC30MR-2 parts list →All Komatsu track rollers →All Komatsu undercarriage parts →All track rollers →