Hydraulic cylinder seal kit for CAT 320D/320DL/320F/320/320GC BUCKET cylinder repair.

Cross-referenced to factory part numbers and built to OEM tolerances using NBR rod seals, PU buffer rings, and PTFE back-up rings for guaranteed leak-free service across the full Canadian temperature range.

Kit contents:
- Rod seal (NBR/PU)
- Piston seal (PU + PTFE)
- Wiper / dust seal
- O-rings and back-up rings
- Bushings (where applicable)

Fits these machines:
- CAT 320D/320DL/320F/320/320GC BUCKET

Stocked in Surrey, BC. Same-day dispatch on orders placed before 2 PM PST. Wrong fit? We pay return shipping and send the right kit — no questions asked.

Need a Komatsu seal kit not listed? Email info@powersoon.ca with your model and serial number.