CATUndercarriage

7T3697 Cylinder As — Cat D8N D8R

This is a hydraulic cylinder assembly, a key actuator in the machine's hydraulic system that converts fluid power into mechanical force for performing work. It is built to precise specifications, ensuring reliable operation and longevity, unlike a worn cylinder that might leak or operate erratically. Operators may notice slow or jerky movements of the boom, stick, or bucket, or a loss of lifting capacity when this cylinder assembly begins to fail.

Cylinder As – Part No 7T3697 – CAT Spare Part
Part Specifications
BrandCAT
CategoryUndercarriage
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

Cross-reference part number with serial number before ordering to confirm fitment. Keep original parts until new ones are confirmed correct. Record part numbers replaced for future reference.

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 Assembly
MaterialSteel Alloy
ApplicationHydraulic System
Service LifeReplace when seals fail or rod is damaged
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing hydraulic cylinder assembly is often a gradual loss of speed or power in the controlled function. If ignored, internal leaks can cause the component to drift or fail to hold position under load, and external leaks may become apparent. A severely damaged cylinder can lead to a complete loss of hydraulic control for its associated function, impacting productivity.

Installation Tip

Before disconnecting hydraulic lines, ensure the system is properly depressurized to avoid fluid spray and potential injury. When installing the new assembly, ensure all mounting bolts are correctly torqued and that the cylinder rod is properly aligned.

Service Note

Inspect all associated hydraulic hoses, fittings, and the hydraulic fluid for contamination or leaks when replacing the cylinder assembly.