This boom cylinder seal kit is specifically designed to reseal the main boom cylinder on Volvo EC380D excavators, preventing hydraulic fluid leaks and restoring proper cylinder function. Manufactured with durable materials that resist wear and hydraulic fluid degradation, it ensures a reliable seal that meets Volvo's performance standards, unlike worn seals that allow leakage and reduced cylinder efficiency. Observable symptoms of a failing seal kit include external fluid leaks from the cylinder rod, slow or jerky boom movements, and an inability for the boom to hold its position under load.
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
Flush hydraulic lines before fitting new components. Use only manufacturer-specified hydraulic fluid. Check O-rings and backup rings for correct orientation. Bleed air from system after installation.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.
The most common sign of a failing boom cylinder seal kit is visible hydraulic fluid leaking from the cylinder rod gland. If unaddressed, this leakage will increase, leading to a loss of hydraulic pressure, slower boom extension and retraction, and the inability of the boom to maintain its position. Continued operation with leaking seals can lead to internal cylinder damage and contamination of the hydraulic system, potentially affecting other hydraulic functions.
Carefully inspect the cylinder rod for any nicks or scoring before installing new seals, as imperfections can cause premature failure. Ensure all seals are installed in the correct orientation to prevent immediate leakage.
Check the hydraulic fluid level and condition, and inspect the hydraulic filter for debris when replacing the boom cylinder seal kit.