Part number lookup
4284449 Replacement Parts
Cross-reference and compare 2 replacement listings for OEM / aftermarket part number 4284449. 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
- Part Number
- Hitachi Excavator EX300-2 EX300-3 Isuzu Engine 6SD1-TPD Muffler Silencer 4284449
Frequently Asked Questions
What parts replace OEM number 4284449?
This page lists 2 replacement listings indexed under 4284449. Compare cross references, applications, and pricing before ordering.
How do I confirm fitment for 4284449?
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 4284449 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.