Part number lookup
Y400001-UP Replacement Parts
Cross-reference and compare 3 replacement listings for OEM / aftermarket part number Y400001-UP. Use this part-number page — not a generic equipment or brand hub — to review price, availability, and fitment before ordering.
3 Matching Products
Part Numbers and Cross References
Applications and Fitment Summary
- Part Number
- Komatsu · s: Fit For Komatsu Excavator PC400-7, PC400-7(-50), PC400-7-M1, PC400LC-7, PC400LC-7L, PC400LC-7-M1, PC450-7, PC450-7K, PC450-7-M1, PC450LC-7, PC450LC-7K, PC450LC-7-M1
- PC400-7 S/N 50001-UP (Overseas Version) PC400-7 S/N Y400001-UP PC400-7 SERIAL NUMBERS : J20001-UP PC400-7(-50) S/N Y400001-UP PC400-7-M1 S/N 50001-UP PC400LC-7 S/N 50001-UP (Overseas Version) PC400LC-7 S/N Y400001-UP PC400LC-7L S/N A86001-UP PC400LC-7-M1 S/N 50001-UP PC450-7 S/N 20001-UP (Overseas Version) PC450-7K S/N K40001-UP PC450-7-M1 S/N 20001-UP PC450LC-7 S/N 20001-UP (Overseas Version) PC450LC-7K S/N K40001-UP PC450LC-7-M1 S/N 20001-UP PW160-7E0 S/N H55051-UP PW180-7E0 S/N H55051-UP PW180-7K S/N K40001-UP
Frequently Asked Questions
What parts replace OEM number Y400001-UP?
This page lists 3 replacement listings indexed under Y400001-UP. Compare cross references, applications, and pricing before ordering.
How do I confirm fitment for Y400001-UP?
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 Y400001-UP 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.


