Part number lookup

PC78UU-8 Replacement Parts

Cross-reference and compare 4 replacement listings for OEM / aftermarket part number PC78UU-8. Use this part-number page — not a generic equipment or brand hub — to review price, availability, and fitment before ordering.

4 Matching Products

Engine Water Pump 6205-61-1202 For Komatsu Excavator PC60-7 PC130-7 PC130-8 PC138US-11 Engine 4D95LEKomatsuEngine Water Pump 6205-61-1202 For Komatsu Excavator PC60-7 PC130-7 PC130-8 PC138US-11 Engine 4D95LE$220.99Bucket Cylinder Seal Kit 707-98-26720 For Komatsu Excavator PC78MR-6 PC78US-6 PC88MR-6KomatsuBucket Cylinder Seal Kit 707-98-26720 For Komatsu Excavator PC78MR-6 PC78US-6 PC88MR-6$147.07Bucket Linkage Bushing 21W-70-41381 for Komatsu Excavator PC78UU-6 PC78US-6 PC78MR-6 PC88MR-8 PC78US-8 PC78UU-8 PW98MR-8 PC88MR-10 PC78US-10 PW98MR-10KomatsuBucket Linkage Bushing 21W-70-41381 for Komatsu Excavator PC78UU-6 PC78US-6 PC78MR-6 PC88MR-8 PC78US-8 PC78UU-8 PW98MR-8 PC88MR-10 PC78US-10 PW98MR-10$40.00Monitor 7835-31-3013 7835-31-3015 For Komatsu Excavator PC88MR-8 PC78US-8 PC78UU-8 PC138US-8KomatsuMonitor 7835-31-3013 7835-31-3015 For Komatsu Excavator PC88MR-8 PC78US-8 PC78UU-8 PC138US-8$1,893.71

Part Numbers and Cross References

6205-61-12026205-61-12006205-61-12016205-61-1203PC78UU-8PC130-8PC70-7-BPC60-7PC70-7PC60-7-BPC78UU-6PC75UU-3707-98-26720PC78MR-61001-UPPC78US-64001-UPPC78US-815001-UP22001-UPPC88MR-621W-70-4138121W-70-41380PC88MR-8PC88MR-8(JPN)PW98MR-8PC88MR-10PC78US-10PW98MR-107835-31-30167835-31-30157835-31-30147835-31-3013Compatible5001-UPPC138US-824510-UPPC138USLC-87835-31-30167835-31-3015

Applications and Fitment Summary

  • Komatsu · PC60-7
  • Komatsu · PC130-7
  • Komatsu · PC130-8
  • Komatsu · PC138US-11
  • Komatsu
  • Part Number
  • Komatsu Excavator PC78MR-6 PC78US-6 PC88MR-6 Bucket Cylinder Seal Kit 707-98-26720 Model NO:Komatsu Excavator PC78MR-6 PC78US-6 PC88MR-6
  • Bucket Details: PC78MR-6 S/N 1001-UP (For EU) PC78MR-6 S/N 1001-UP (For North America) PC78US-6 S/N 4001-UP PC78US-6 S/N 4001-UP (For North America) PC78US-6 S/N 4001-UP (For Norway) PC78US-8 S/N 15001-UP PC78US-8 S/N 15001-UP (EU Spec.) PC78US-8 S/N 15001-UP (North America Spec.) PC78UU-6 S/N 22001-UP PC78UU-8 S/N 15001-UP PC88MR-6 S/N F00003 AND UP PC88MR-8 S/N 5001-UP PC88MR-8 S/N 5001-UP (EU Spec.) PC88MR-8 S/N 5001-UP (North America Spec.) PC88MR-8 S/N F80003 AND UP PC88MR-8(JPN) - FOR EU 2-PIECE BOOM APPLICATION S/N 5001-Up PW98MR-6 S/N F00003-Up PW98MR-8 S/N F80003 AND UP Note: Please contact us to confirm the hydraulic seal kit you need before buying, thank you!
  • Komatsu · s: Fit For Komatsu Excavator: PC78UU-6, PC78US-6, PC78MR-6, PC88MR-8, PC88MR-8(JPN), PC78US-8, PC78UU-8, PW98MR-8, PC88MR-10, PC78US-10, PW98MR-10
  • Komatsu Excavator PC88MR-8 PC78US-8 PC78UU-8 PC138US-8 Monitor 7835-31-3013 7835-31-3015

Frequently Asked Questions

What parts replace OEM number PC78UU-8?

This page lists 4 replacement listings indexed under PC78UU-8. Compare cross references, applications, and pricing before ordering.

How do I confirm fitment for PC78UU-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 PC78UU-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.

Confirm fitment & quote details

Send machine details and nameplate photos before ordering high-risk or quote-only parts.