This CAT Stick Cylinder Seal Kit is designed to replace worn or leaking seals within the hydraulic stick cylinder of Caterpillar equipment. Manufactured to OEM standards, it ensures proper sealing and hydraulic function, unlike a damaged seal that allows fluid to escape and contaminants to enter. Operators may notice slow or jerky boom movements, or visible hydraulic fluid leaks from the cylinder rod when this seal kit fails.
Always verify with serial number before ordering.
Parts Trading Company · Mumbai, Est. 1956 · Same-day dispatch · Ships worldwide · GST invoice included
From the same category — may also be needed
Full shipping information on regional pages · Air freight 2–12 days · GST invoice for India
Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.
The first sign of a failing stick cylinder seal kit is often a visible hydraulic fluid leak around the cylinder rod or sluggish operation of the stick. If ignored, this can lead to a significant loss of hydraulic power, making the equipment difficult to operate. Continued use risks internal cylinder damage and potential contamination of the entire hydraulic system.
Carefully clean the cylinder bore and rod before installing the new seals to prevent damage. Ensure all seals are oriented correctly according to the installation diagram to prevent immediate leakage.
Inspect the cylinder rod for any scoring or pitting, as this can cause premature failure of the new seals.