VolvoEngine Parts

21458307 Overflow Valve — Volvo

This is a Volvo Overflow Valve, designed to regulate hydraulic system pressure by releasing excess fluid. It ensures the system operates within safe pressure limits, preventing damage to components. A worn or failed valve may cause sluggish operation, inconsistent pressure, or audible relief noises.

Overflow Valve – Part No 21458307 – Volvo Spare Part
Part Specifications
BrandVolvo
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 TypeOverflow Valve
MaterialSteel
ApplicationHydraulic system pressure regulation
Service LifeReplace as needed based on inspection
CompatibilityVolvo specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing overflow valve may include a noticeable drop in system performance or inconsistent operation. If left unaddressed, the valve's inability to regulate pressure can lead to increased wear on other hydraulic components. Continued operation with a faulty valve risks damage to pumps and actuators due to over-pressurization.

Installation Tip

Ensure the hydraulic system is properly depressurized before attempting removal to prevent injury and fluid loss. Avoid overtightening the valve during installation, as this can damage the valve seat or housing.

Service Note

Inspect the hydraulic filter and fluid condition during overflow valve replacement.