Komatsu Excavator seal kits

Browse aftermarket replacement hydraulic seal kits for Komatsu excavators, including boom, arm/stick, bucket and other cylinder applications across frequently serviced PC-series machines. Fujis Seal organizes this collection to help identify the correct kit by Komatsu machine model, OEM/reference part number, cylinder position, serial range and available rod/bore dimensions.

How to Identify the Correct Komatsu Excavator Seal Kit

Komatsu excavators within the same PC model family can use different cylinders across production years, serial ranges and configurations. Confirm the information on the individual product page against the parts manual, cylinder tag or removed seals.

• Machine model: record the full PC-series model and suffix, including LC, USLC, LCi or other variants.
• Serial number: use when a model family has multiple cylinder revisions.
• Cylinder position: boom, arm/stick, bucket or another hydraulic function.
• OEM/reference number: match every digit and hyphen.
• Rod and bore dimensions: use as a secondary fitment check.

Part-number matching is generally more reliable than dimensions alone because similar cylinder sizes can still use different seal profiles.

Fitment Support from Fujis Seal

If the part number is unavailable, contact Fujis Seal with the model, serial number, cylinder position, photos and measurements. Our excavator seal kit identification guide explains the recommended matching sequence.

Komatsu Excavator Seal Kit FAQs

Can I select a kit using only the excavator model?

Not reliably. Confirm the part number, cylinder position and serial-range information whenever possible.

Are these genuine Komatsu parts?

Unless a listing expressly states otherwise, products are aftermarket replacement seal kits supplied by Fujis Seal. Komatsu names and references are used for compatibility and product identification only.

Komatsu is a trademark of its respective owner and its use does not imply endorsement or affiliation.