CATEngine Parts

278-1970 Hydraulic Cylinder Seal Kit — Cat 3044C 226B

This hydraulic cylinder seal kit is designed to replace worn or damaged seals within the hydraulic system of CAT equipment. It ensures proper sealing to maintain hydraulic pressure and prevent fluid leakage, crucial for efficient operation. Failure of these seals can lead to slow or jerky cylinder movement, external fluid leaks, and reduced lifting or digging capacity.

Hydraulic Cylinder Seal Kit – Part No 278-1970 – 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, Steel
ApplicationHydraulic cylinder sealing
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of seal failure include a slight loss of hydraulic system responsiveness or minor external fluid seepage around the cylinder rod. If ignored, the cylinder may exhibit slower movement, drift under load, and increased leakage, potentially leading to reduced equipment productivity.

Installation Tip

Ensure the cylinder bore and rod are meticulously cleaned to prevent damaging the new seals during installation. Avoid using sharp tools that could nick or scratch the sealing surfaces.

Service Note

Inspect the hydraulic fluid and filter for contamination, as this can accelerate seal wear.