CATHydraulic Parts

3679478 Caterpillar Cylinder Gp-Tilt 3679478 — Cat

This is a CAT Cylinder Group for Tilt, a crucial hydraulic actuator responsible for providing the lifting and tilting force in construction equipment. Manufactured to meet stringent OEM standards, it offers robust performance and durability compared to a worn or leaking cylinder. Operators may notice slow or weak tilting action, external hydraulic fluid leaks around the cylinder, or an inability to hold a load in position when this component fails.

Caterpillar Cylinder Gp-Tilt 3679478 – Part No 3679478 – CAT Spare Part
Part Specifications
BrandCAT
CategoryHydraulic 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

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.

Part TypeHydraulic Cylinder Group - Tilt
MaterialHardened Steel Alloy
ApplicationTilt Function
Service LifeReplace based on leaks or performance degradation
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing tilt cylinder is often a noticeable slowness or lack of power when tilting the implement. If ignored, the cylinder may begin to leak hydraulic fluid externally, and its ability to hold a load will diminish, potentially causing the implement to drift. Continued operation with a compromised cylinder risks uncontrolled movement of the attachment.

Installation Tip

Ensure all hydraulic lines are properly cleaned before connecting them to the new cylinder to prevent contamination. Avoid applying excessive force when installing mounting pins, as this can damage the cylinder's bores or the pins themselves.

Service Note

Inspect the hydraulic fluid and filter for contamination, and check the condition of the hydraulic lines connected to the tilt cylinder.