This is a boom cylinder seal kit designed to restore the sealing integrity of the hydraulic boom cylinder on Volvo excavators. It prevents hydraulic fluid leakage and contamination, ensuring the cylinder can extend and retract smoothly under load. A worn or damaged seal kit will cause the boom to drift downwards when not actively being operated, indicating a loss of hydraulic holding pressure.
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 symptom of a failing boom cylinder seal is the boom slowly lowering or drifting when the machine is not actively operating the boom. If ignored, this drift will become more pronounced, and the boom may struggle to maintain its position under load, potentially affecting digging depth and stability.
Carefully inspect the cylinder rod for any imperfections or scoring before installing the new seals, as these can quickly damage the new sealing elements. Ensure all seal lips are properly lubricated with compatible hydraulic fluid before insertion.
When replacing boom cylinder seals, it is advisable to inspect the hydraulic fluid level and condition, and check the return line filter for debris.