VolvoEngine Parts

21354759 Expansion Valve — Volvo FH12 FH16

This is an expansion valve, a critical component in the air conditioning system responsible for regulating refrigerant flow. It is precision-engineered to maintain optimal system pressure and temperature, ensuring efficient cooling performance unlike a clogged or faulty valve which can lead to poor AC performance. Operators might notice a lack of cooling, inconsistent cabin temperatures, or excessive system pressure if this expansion valve malfunctions.

Expansion Valve – Part No 21354759 – 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

Cross-reference part number with serial number before ordering to confirm fitment. Keep original parts until new ones are confirmed correct. Record part numbers replaced for future reference.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeExpansion Valve (AC System)
MaterialBrass and durable sealing materials
ApplicationRefrigerant flow control in AC system
Service LifeReplace as needed based on AC performance diagnostics
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The most common symptom of a failing expansion valve is a significant reduction in the air conditioning system's cooling capacity. If ignored, the system may struggle to maintain a comfortable cabin temperature, leading to discomfort for the operator. In extreme cases, improper refrigerant flow can cause damage to the compressor or other AC components.

Installation Tip

Ensure the AC system is properly evacuated of refrigerant before removing the old valve to prevent environmental release and personal injury. Do not overtighten the valve fittings, as this can damage the sealing surfaces.

Service Note

The AC system must be evacuated and recharged by a qualified technician, and the receiver-drier or accumulator should be inspected and replaced if necessary.