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Sierra 18-6854 Battery Isolator 1-Alternator 3-Battery 160 Amp

Manufacturer

Sierra

Picture for manufacturer Sierra

Part Number

18-6854
14 reviews
03/13/2036 10:41 AM
Sale Price

$339.99

3 left at this price

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Usually delivered within 2 days

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Product Details

The Sierra 18-6854 battery isolator enables charging of up to three separate batteries from a single alternator source, making it ideal for marine vessels and RVs that require isolated battery banks for different electrical systems. This 160-amp rated isolator uses solid-state diode technology to prevent batteries from discharging into each other while ensuring all batteries receive a charge when the engine is running.

Key Features:

  • 160-amp maximum current capacity for reliable high-output charging
  • 1 alternator input with 3 battery output terminals
  • Solid-state diode design for automatic battery isolation
  • Prevents battery cross-discharge when engine is off
  • Maintains separate starting and house battery banks
  • Heavy-duty construction for marine and mobile applications

Important Compatibility Note: This isolator is not compatible with Delco "CS" style alternators. Verify your alternator type before installation to ensure proper operation.

Sierra battery isolators are engineered to withstand the harsh marine environment while providing dependable multi-battery charging performance for boats, RVs, and other vehicles requiring isolated electrical systems.

Products specifications

Amps

160

Application

1 alternator / 3 batteries

Connection with Amazon is great

I need tracking

easy, smooth transaction. Reasonably priced item. I was hesitant when reading some negative reviews, but took a chance anyway. I'm glad that I did. Item quickly received; no problems. Will buy from again.

The delivery service was total mess the boxes were damaged and one of the nuts was missing .

thanks!

very good

Would like an est arrival date

thanks

Let me get the product first.

Best price I found on Weathertech digifit floor mats for my 2012 F150 Supercrew. Product was as described and shipping was fast too.

great

super fast shipment speed, no breakage,

good.

Excellent service and the cheapest price that I could find anywhere. Ordered on a Sunday and delivered in record time three days later...basic overground shipping. I will deffinately order from here again!

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