Part number lookup
707-99-77380 Replacement Parts
Cross-reference and compare 2 replacement listings for OEM / aftermarket part number 707-99-77380. 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
- Komatsu Excavator PC750-6 PC800-6 Boom Cylinder Seal Kit 707-99-77380
- Boom Cylinder 209-63-02301 Compatible Models: Komatsu Excavator PC750-6 PC800SE-6 PC800-6 PC750SE-6K PC750SE-6K-J PC750SE-6K-01 PC750LC-6K-01 Specification: Rod:140mm Bore:200mm Details: PC750SE-6 S/N 10001-UP PC750LC-6 S/N 10001-UP PC750-6 S/N 10001-UP PC800SE-6 S/N 30001-UP PC800-6 S/N 30001-UP PC750SE-6K S/N K30001-UP PC750SE-6K-J S/N 10001-UP PC750SE-6K-01 S/N K30001-UP PC750LC-6K-01 S/N K30001-UP Note: Please contact us to confirm the hydraulic seal kit you need before buying, thank you!
- Komatsu Excavator PC750SE-6 PC750LC-6 Boom Cylinder Seal Kit 707-99-77380
- Boom Cylinder 209-63-02301 Compatible Models: Komatsu Excavator PC750SE-6 PC750LC-6 PC750-6 PC800SE-6 PC800-6 PC750SE-6K PC750SE-6K-J PC750SE-6K-01 PC750LC-6K-01 Specification: Rod:140mm Bore:200mm Details: PC750SE-6 S/N 10001-UP PC750LC-6 S/N 10001-UP PC750-6 S/N 10001-UP PC800SE-6 S/N 30001-UP PC800-6 S/N 30001-UP PC750SE-6K S/N K30001-UP PC750SE-6K-J S/N 10001-UP PC750SE-6K-01 S/N K30001-UP PC750LC-6K-01 S/N K30001-UP Note: Please contact us to confirm the hydraulic seal kit you need before buying, thank you!
Frequently Asked Questions
What parts replace OEM number 707-99-77380?
This page lists 2 replacement listings indexed under 707-99-77380. Compare cross references, applications, and pricing before ordering.
How do I confirm fitment for 707-99-77380?
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 707-99-77380 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.

