CATEngine Parts

168-0760 Boom Cylinder Seal Kit — Cat 3306

This boom cylinder seal kit is designed to replace the worn or leaking seals within the hydraulic boom cylinder of heavy equipment, restoring its lifting and positioning capabilities. It contains all necessary O-rings, wipers, and backup rings made from durable, high-performance materials to withstand high pressures and harsh operating conditions, unlike degraded seals that allow fluid bypass. Operators will typically notice a slow or jerky boom movement, external hydraulic fluid leaks around the cylinder rod, or an inability to hold a specific boom position when these seals fail.

Boom Cylinder Seal Kit – Part No 168-0760 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

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.

Part TypeHydraulic Cylinder Seal Kit
MaterialNBR rubber and polyurethane
ApplicationBoom hydraulic cylinder
Service LifeReplace as needed based on wear
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first observable symptom of failing boom cylinder seals is often a noticeable slowdown or jerkiness in boom operation, or visible hydraulic fluid leaking from the cylinder rod. If left unaddressed, the cylinder will lose its ability to hold position effectively, leading to uncontrolled movement and potential damage to surrounding components. The ultimate risk is the inability to safely operate the boom, compromising work efficiency and operator safety.

Installation Tip

Thoroughly clean the cylinder bore and piston rod before installing new seals to prevent damage and ensure a proper seal. Never use sharp tools to pry seals into place; use appropriate seal installation tools or the piston rod itself carefully.

Service Note

When replacing boom cylinder seals, inspect the cylinder bore for scoring and the hydraulic fluid for contamination.