VolvoEngine Parts

20994246 — Air Valve 23992701 21369922 20994246 20741658 For Volvo Engine D12 Truck Vhd Vn Vt Bus B13R

This air valve, also known as an air shut-off valve or cylinder cut-off valve, is used in the engine's fuel system to control air intake or fuel delivery to individual cylinders. It is engineered with precise sealing surfaces and actuation mechanisms to ensure accurate engine timing and performance, unlike a stuck or leaking valve that causes misfires. Operators may notice rough idling, loss of power, or engine warning lights when this valve malfunctions.

Air Valve 23992701 21369922 20994246 20741658 For Volvo Engine D12 Truck Vhd Vn Vt Bus B13R – Part No 20994246 – 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 TypeAir Valve / Shut-off Valve
MaterialSteel / Brass
ApplicationEngine Fuel/Air System
Service LifeReplace as needed based on diagnostics
CompatibilityVolvo 23992701, 21369922, 20741658
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of failure include intermittent engine misfires, a rough idle, or a noticeable loss of engine power. If the valve becomes stuck open or closed, it can lead to persistent poor performance or prevent the engine from running correctly. Ignoring these symptoms can result in increased fuel consumption and potential damage to other engine components.

Installation Tip

Carefully clean the mounting surface and any associated air or fuel lines before installing the new valve. Ensure the valve is oriented correctly as per the service manual to prevent operational issues.

Service Note

When replacing an air valve, it is advisable to inspect all related air hoses, solenoids, and sensors for leaks or damage.