CATEngine Parts

096-5931 Main Relief Valve — Cat Excavator E200B El200B

This is the main relief valve for the hydraulic system, controlling maximum system pressure to prevent component damage. It is manufactured to meet stringent OEM quality standards, ensuring superior durability and performance compared to a worn or failing valve. Operators may notice a loss of hydraulic power, erratic implement movement, or a whining sound from the pump if this valve is stuck open or leaking.

Main Relief Valve – Part No 096-5931 – 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 Main Relief Valve
MaterialHardened Steel
ApplicationMain Hydraulic System Pressure Control
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing main relief valve include a noticeable drop in hydraulic system performance or erratic operation of hydraulic functions. If left unaddressed, the valve may stick open, leading to consistent loss of power and potential overheating of the hydraulic fluid. Continued operation with a faulty relief valve risks damage to the hydraulic pump and other critical system components.

Installation Tip

Ensure the hydraulic system is properly depressurized before attempting removal to avoid injury. Do not overtighten the valve during installation, as this can damage the valve seat or housing.

Service Note

Inspect the hydraulic filter and fluid for signs of contamination when replacing the main relief valve.