CATEngine Parts

3489761 Control Relief Valve — Cat 3054C 420E

This control relief valve regulates hydraulic system pressure, preventing over-pressurization and ensuring component longevity within the main hydraulic system. It is manufactured to meet stringent OEM quality standards, offering superior durability and consistent performance compared to a worn or failing valve that may exhibit leaks or inconsistent pressure control. Operators may notice sluggish hydraulic functions, erratic boom or bucket movements, or a noticeable whine from the hydraulic pump when this valve begins to fail.

Control Relief Valve – Part No 3489761 – 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 Control Relief Valve
MaterialHardened Steel
ApplicationMain Hydraulic System
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing control relief valve may include a slight decrease in hydraulic system responsiveness or a faint whining noise. If left unaddressed, the valve can lead to inconsistent hydraulic pressure, causing erratic machine operation and potential overheating of the hydraulic fluid. Continued operation with a faulty valve risks damage to the hydraulic pump and other critical system components.

Installation Tip

Ensure the hydraulic system is properly depressurized before removing the old valve to prevent injury. Avoid overtightening the valve during installation, as this can damage the threads or the valve body.

Service Note

Inspect the hydraulic filter and fluid condition during replacement, as contamination can cause premature valve failure.