VolvoElectrical Parts

20367498 — Truck Power Switch Battery Isolator 20367498 For Volvo Truck Fh12 Fh16 Fm9 Fm12 Fmx Nh12

This truck power switch acts as a battery isolator, allowing the operator to disconnect the main electrical power supply to the vehicle's systems. It is crucial for safety during maintenance and for preventing battery drain during storage, providing a positive shut-off unlike a worn or faulty switch that may fail to disconnect power. Operators might experience the inability to shut down electrical systems completely, or accidental power interruptions if the switch is unreliable.

Truck Power Switch Battery Isolator 20367498 For Volvo Truck Fh12 Fh16 Fm9 Fm12 Fmx Nh12 – Part No 20367498 – Volvo Spare Part
Part Specifications
BrandVolvo
CategoryElectrical 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

Disconnect main battery before working on electrical components. Use dielectric grease on all connector pins. Check ground connections — most electrical faults trace to poor grounds. Test with multimeter before installing new parts.

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

Part TypeBattery Isolator Switch
MaterialHeavy-duty plastic and metal contacts
ApplicationMain electrical power disconnect
Service LifeReplace as needed based on diagnostic testing
CompatibilityVolvo 20367498
ConditionNew — OEM specification aftermarket

Failure Symptoms

The primary symptom of a failing battery isolator is the inability to completely shut off all electrical power to the truck. If ignored, this can lead to battery drain during storage or pose a safety risk by preventing a full electrical shutdown for maintenance. The worst-case scenario is an inability to disconnect power in an emergency situation, increasing the risk of electrical fire or injury.

Installation Tip

Ensure the battery is completely disconnected before removing the old switch to prevent accidental power surges. Verify that the new switch is firmly mounted and that all cable connections are clean and tightly secured.

Service Note

Inspect the battery cables and terminals for corrosion or damage during the replacement of the battery isolator switch.