CATEngine Parts

297-6848 Hydraulic Cylinder Seal Kit — Cat C18 C27

This is a hydraulic cylinder seal kit designed to restore the sealing integrity of hydraulic cylinders within the engine or undercarriage systems. Manufactured to precise OEM standards, it ensures a reliable seal that prevents fluid leakage and contamination, unlike worn seals that allow fluid bypass and dirt ingress. Operators might observe external oil leaks around the cylinder, slow or jerky cylinder operation, or a loss of lifting or pushing force when this seal kit is needed.

Hydraulic Cylinder Seal Kit – Part No 297-6848 – 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, PTFE, Bronze
ApplicationHydraulic Cylinder Sealing
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of seal failure is often visible external oil leakage from the cylinder rod. If ignored, internal leakage will increase, leading to slower actuator speeds and reduced holding capacity. Prolonged use with failing seals can cause rod scoring and cylinder bore damage, necessitating more extensive repairs.

Installation Tip

Thoroughly clean the cylinder bore and rod before installing new seals to prevent contamination and damage. Avoid using sharp tools that could nick or cut the new seals during installation.

Service Note

Inspect the hydraulic fluid and filter for signs of seal material contamination when replacing cylinder seals.