VolvoEngine Parts

21243844 — Truck, Renault Truck Battery Main Switch

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.

Truck, Renault Truck Battery Main Switch – Part No 21243844 – 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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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

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 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.