CATEngine Parts

295-9414 Swing Piston Motor — Cat C15 374Dl

This is a Swing Piston Motor, a critical component within the hydraulic system responsible for rotating the upper structure of the excavator. It ensures smooth and controlled slewing movements, differentiating itself from a worn unit by providing consistent torque and precise positioning. Operators may notice a loss of swing speed, jerky or uncontrolled rotation, or an inability to hold position when this motor begins to fail.

Swing Piston Motor – Part No 295-9414 – 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 Swing Piston Motor
MaterialHardened Steel Alloy
ApplicationExcavator Swing Circuit
Service LifeReplace based on performance degradation or 5,000-8,000 hours
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing swing piston motor include a noticeable decrease in slewing speed or a slight hesitation during rotation. If ignored, the motor may begin to slip, causing jerky movements and difficulty in precise positioning. Eventually, the machine may lose its ability to swing altogether, significantly impacting operational capability.

Installation Tip

Ensure the hydraulic system is properly flushed and free of contaminants before installing the new motor to prevent premature wear. Avoid overtightening mounting bolts, as this can distort the motor housing.

Service Note

Inspect the slew ring and swing gear for wear and damage, and check the hydraulic system's relief valves when replacing the swing piston motor.