This isolator solenoid is typically installed in the engine bay or near your batteries as the central component of a dual battery system. It functions as a heavy-duty switch for any vehicle equipped with high-demand accessories such as a camping fridge, winch, or auxiliary lighting. It ensures your secondary battery is charged by the alternator whenever the engine is running, but crucially, it isolates the starter battery when the engine is off. This prevents your accessories from draining the battery needed to start your vehicle.
A faulty or failing isolator solenoid can compromise your entire dual battery setup. If it fails to engage, your auxiliary battery will not charge, leaving you without power for your essential gear when you need it most. Conversely, if it fails to disengage, it can allow your accessories to drain your main starter battery, potentially leaving you stranded with a vehicle that won't start.
This part has been designed to fit
Please check vehicle fitment to confirm compatibility with your vehicle. Please contact us with your VIN details if you require further assistance to confirm fitment.
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