VolvoCab & Body Parts

21243844 Cab & Body Parts Part — Volvo FH12 FH16

This is a main battery disconnect switch, essential for safely isolating the vehicle's electrical system. It is constructed from durable materials to withstand vibration and environmental exposure, ensuring reliable operation unlike a worn switch that may exhibit corrosion or loose connections. Operators may notice intermittent power loss, difficulty starting the engine, or the battery draining unexpectedly when this switch begins to fail.

Cab & Body Parts Part – Part No 21243844 – Volvo Spare Part
Part Specifications
BrandVolvo
CategoryCab & Body Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO
WhatsApp for Price & Availability☎ Call Mumbai Office

Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

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Full shipping information on regional pages · Air freight 2–12 days · GST invoice for India

Cross References & OEM Numbers

Alternate part numbers that interchange with Volvo 21243844

Fitment: Volvo Trucks: FH12, FH16, FE;2006 FL: 2006> Renault Trucks: Kerax DXi 11/13, Midlum DXi 5/7, Premium TR/PR

Installation & Application Notes

Clean mating surfaces before fitting cab seals to prevent air and water ingress. Use correct adhesive for glass bonding — structural automotive adhesive, not silicone. Check wiring harness routing when replacing doors or panels.

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

Part TypeBattery Main Switch
MaterialHeavy-duty plastic and brass contacts
ApplicationVehicle electrical system isolation
Service LifeReplace every 5 years or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

An operator might first notice the engine cranking slowly or not starting at all, indicating a loss of electrical power. If ignored, intermittent power failures can become more frequent, potentially leaving the vehicle stranded. The ultimate consequence is a complete loss of electrical function, rendering the vehicle inoperable.

Installation Tip

Before removing the old switch, carefully label all wiring connections to ensure correct reinstallation. Avoid overtightening the terminals, as this can damage the switch housing or the wiring.

Service Note

Inspect battery terminals and cables for corrosion or damage, and clean them as necessary during replacement.