This is a boom cylinder seal kit, a comprehensive set of seals and O-rings designed to restore the sealing integrity of the main boom hydraulic cylinder. It is manufactured from durable, high-performance elastomers that resist wear, heat, and hydraulic fluid degradation, outperforming worn or cracked seals. Operators may notice hydraulic fluid leaks around the boom cylinder, slow or jerky cylinder operation, or a loss of lifting power when this seal kit is needed.
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.
Visible hydraulic fluid leaks from the boom cylinder rod seal are the primary symptom. If ignored, the leaks will worsen, leading to a gradual loss of hydraulic pressure and lifting capacity. The consequence is reduced excavation efficiency and potential damage to the cylinder rod and internal components.
Carefully inspect the cylinder rod and bore for any scoring or damage before installing the new seals, as imperfections can quickly damage new seals. Ensure all seals are properly seated and lubricated with clean hydraulic oil to prevent tearing during installation.
Inspect the hydraulic fluid for contamination and check the condition of the hydraulic hoses connected to the boom cylinder.