Part number lookup
D39EX-21A Replacement Parts
Cross-reference and compare 2 replacement listings for OEM / aftermarket part number D39EX-21A. 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 Crawler Dozer: D31EX-21A-M, D31PX-21A-M, D31PX-21A, D31PX-21, D31EX-21, D39PX-21A, D39PX-21A-M, D39PX-21, D37PX-21, D39EX-21A, D39EX-21, D39EX-21A-M, D37EX-21, D37PX-21A-M, D37PX-21A, D37EX-21A-M, D37EX-21A
Frequently Asked Questions
What parts replace OEM number D39EX-21A?
This page lists 2 replacement listings indexed under D39EX-21A. Compare cross references, applications, and pricing before ordering.
How do I confirm fitment for D39EX-21A?
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 D39EX-21A 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.