Part number lookup

D21A-8 Replacement Parts

Cross-reference and compare 6 replacement listings for OEM / aftermarket part number D21A-8. Use this part-number page — not a generic equipment or brand hub — to review price, availability, and fitment before ordering.

6 Matching Products

Part Numbers and Cross References

Applications and Fitment Summary

  • Komatsu · D20P-7A
  • Komatsu · D20PG-7A
  • Komatsu · D20PL-7
  • Komatsu · D20PLL-7
  • Komatsu · D21A-7
  • Komatsu · D21A-7T
  • Komatsu · D21A-8
  • Komatsu · D31
  • Komatsu · KOMATSU D31 D20-7 D21-7 D21-8
  • Komatsu · s: Komatsu Bulldozer: D20P-7A; D20PG-7A; D20PL-7; D20PLL-7; D21A-7; D21A-7; D21A-7; D21A-7T; D21A-7T; D21A-8; D31
  • Komatsu · D20A-8
  • Komatsu · D20P-8
  • Komatsu · D20PL-8
  • Komatsu · D20PLL-8
  • Komatsu · D21A-8E0
  • Komatsu · D21A-8T
  • Komatsu · D21P-8
  • Komatsu · D21P-8E0
  • Komatsu · D21P-8T
  • Komatsu · D21PL-8
  • Komatsu · D31EX-21A-M
  • Komatsu · D31PX-21A-M
  • Komatsu · D37EX-21A-M
  • Part Number

Frequently Asked Questions

What parts replace OEM number D21A-8?

This page lists 6 replacement listings indexed under D21A-8. Compare cross references, applications, and pricing before ordering.

How do I confirm fitment for D21A-8?

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-8 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.