Part number lookup

D21A-3 Replacement Parts

Cross-reference and compare 3 replacement listings for OEM / aftermarket part number D21A-3. Use this part-number page — not a generic equipment or brand hub — to review price, availability, and fitment before ordering.

3 Matching Products

Part Numbers and Cross References

Applications and Fitment Summary

  • Part Number
  • Komatsu Bulldozer: D20P-3 S/N 20007-UP D20A-2 S/N 1005-UP D20A-3 S/N 20007-UP D20PL-3 S/N 20007-UP D21P-3 S/N 20007-UP D21A-3 S/N 20007-UP D30S-12 S/N 5004-UP D50P-15 S/N 35002-UP D50S-15 S/N 35002-UP D55S-3 S/N 1007-UP D60S-6 S/N 20006-UP D60PL-6 S/N 20006-UP D60P-6 S/N 20006-UP D60A-6 S/N 20006-UP D65E-6 S/N 20295-UP D65A-6 S/N 20006-UP D65S-6 S/N 20006-UP D75S-2 S/N 1004-UP D80A-12 S/N 10001-UP D85A-12 S/N 10001-UP D95S-1 S/N 1003-UP D150A-1 S/N 5508-UP D155A-1 S/N 5508-UP D355A-3 S/N 1010-UP

Frequently Asked Questions

What parts replace OEM number D21A-3?

This page lists 3 replacement listings indexed under D21A-3. Compare cross references, applications, and pricing before ordering.

How do I confirm fitment for D21A-3?

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 D21A-3 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

Send machine details before ordering high-risk parts.