CATEngine Parts

199-2393 Pilot Valve — Cat 320B

This is a pilot valve, a crucial component within the hydraulic control system of excavators. It directs hydraulic fluid flow to activate main control valves, enabling precise operation of machine functions. Manufactured to strict tolerances, this valve ensures consistent and responsive hydraulic control, unlike a worn valve which may exhibit sluggish or erratic operation.

Pilot Valve – Part No 199-2393 – 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 TypePilot Valve
MaterialSteel and Brass
ApplicationHydraulic Control System
Service LifeReplace as needed based on performance
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing pilot valve may initially cause a slight delay or hesitation in machine function response. If ignored, this can progress to jerky movements or a complete loss of control over specific hydraulic circuits. The inability to properly control hydraulic functions can lead to reduced productivity and potential damage to other components due to improper operation.

Installation Tip

Thoroughly flush the hydraulic system to remove any contaminants before installing the new pilot valve. Ensure all O-rings and seals are properly seated to prevent leaks.

Service Note

Inspect the hydraulic fluid and filter for contamination when replacing the pilot valve, as contaminants can damage hydraulic components.