This boom cylinder seal kit contains all the necessary seals and O-rings to rebuild a leaking or worn boom cylinder on Volvo excavators. It is constructed from high-quality, durable materials designed to withstand high pressures and harsh operating conditions, ensuring a reliable seal unlike a damaged kit that allows fluid bypass. Operators will notice a slow-moving or drifting boom, or visible hydraulic fluid leaks around 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
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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 first indication of a failed seal kit is often a visible hydraulic fluid leak from the cylinder rod or a noticeable drift in the boom position when the engine is running. If left unaddressed, the cylinder will lose its lifting capacity, and internal wear will accelerate. The worst consequence is a complete loss of boom control, potentially leading to uncontrolled movement of the boom.
Thoroughly clean the cylinder bore and rod before installing the new seals to prevent contamination and damage. Ensure all new seals are properly lubricated with system-compatible hydraulic fluid before insertion.
Inspect the cylinder rod for scoring or damage and check the piston seals for wear when replacing the boom cylinder seal kit.