Part number lookup

21U-30-31301 Replacement Parts

Cross-reference and compare 2 replacement listings for OEM / aftermarket part number 21U-30-31301. Use this part-number page — not a generic equipment or brand hub — to review price, availability, and fitment before ordering.

2 Matching Products

Part Numbers and Cross References

Applications and Fitment Summary

  • Komatsu · s: Fit for Komatsu Excavator: PC20MR-1, PC20MR-2, PC20MR-2-A, PC20MR-2-B, PC20MRX-1, PC20UU-3, PC22MR-3, PC27MR-1, PC27MR-2, PC27MR-2-A, PC27MR-2-B, PC27MR-3, PC27MRX-1, PC28UU-3, PC30MR-1, PC30MR-2, PC30MR-2-A, PC30MR-2-B, PC30MR-2-C, PC30MR-2-D, PC30MR-3, PC30MR-3(JPN)-FOR, PC30MR-5, PC30MRX-1, PC30UU-3, PC35MR-2, PC35MR-2-A, PC35MR-2-B, PC35MR-3, PC35MR-3(JPN)-FOR, PC35MR-5, PC35MRX-1A, PC20MR-3

Frequently Asked Questions

What parts replace OEM number 21U-30-31301?

This page lists 2 replacement listings indexed under 21U-30-31301. Compare cross references, applications, and pricing before ordering.

How do I confirm fitment for 21U-30-31301?

Match the stamped part number first, then verify machine model, engine code, serial number, mounting points, and photos of your old part before checkout.

Can I request a quote if 21U-30-31301 is not an exact match?

Yes. Use the fitment inquiry form with your machine plate, engine model, and photos. Support can review alternatives or cross references.

Confirm fitment & quote details

Send machine details and nameplate photos before ordering high-risk or quote-only parts.