Part number lookup
4320990 Replacement Parts
Cross-reference and compare 1 replacement listing for OEM / aftermarket part number 4320990. Use this part-number page — not a generic equipment or brand hub — to review price, availability, and fitment before ordering.
1 Matching Product
Part Numbers and Cross References
Applications and Fitment Summary
- Part Number
- Model: Hitachi EX120K-3 OEM 4320990 Specification: Rod: 70 mm Bore: 105 mm Note: Please contact us to confirm the hydraulic seal kit you need before buying, thank you!
Frequently Asked Questions
What parts replace OEM number 4320990?
This page lists 1 replacement listing indexed under 4320990. Compare cross references, applications, and pricing before ordering.
How do I confirm fitment for 4320990?
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 4320990 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.