CATEngine Parts

454-8652 Boom Cylinder Seal Kit — Cat 426F2 424B2

This is a specialized seal kit designed to replace worn or leaking seals within a boom cylinder assembly, crucial for maintaining hydraulic system integrity. Manufactured to meet rigorous OEM quality standards, it offers superior resistance to wear and hydraulic fluid degradation compared to a compromised kit. Operators may notice hydraulic fluid leaks around the boom cylinder, sluggish cylinder operation, or a loss of lifting capacity when this seal kit fails.

Boom Cylinder Seal Kit – Part No 454-8652 – 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 TypeBoom Cylinder Seal Kit
MaterialNBR rubber and polyurethane
ApplicationBoom cylinder hydraulic system
Service LifeReplace every 2,000 hrs or upon seal failure
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing seal kit is typically visible hydraulic fluid leakage from the boom cylinder rod or barrel. If not replaced, the leaks will worsen, leading to a gradual loss of hydraulic pressure and slower, less responsive cylinder movement. Continued operation risks significant hydraulic system contamination and potential inability to lift loads.

Installation Tip

Carefully inspect the cylinder rod for any nicks or burrs that could damage the new seals during installation. Ensure all old seal material is completely removed from the gland before inserting the new seals.

Service Note

Inspect the hydraulic fluid for contamination and check the condition of the cylinder rod and bore for scoring or damage when replacing the boom cylinder seals.