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.





