SKU: 3786089356

Newmar 1-3-70 Battery Isolator [1-3-70]

Name: Newmar 1-3-70 Battery Isolator [1-3-70]
Brand: beachhead.com
SKU: 3786089356
Price: 104.00 USD
Availability: InStock
Rating: 4.2322 (1749 reviews)

$93.60 $104.00

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No.2 Bestseller on beachhead.com >

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Shipping Estimate
USA

USA

CAN

Ships within 48 hours · Estimated delivery Aug 3 - Aug 8

Description

Newmar 1-3-70 Battery Isolator [1-3-70]1 3 70 Battery Isolator This heavy duty isolator allows charging multiple batteries automatically from one or two alternators and prevents the discharge or dumping of one battery into another. Each battery is charged according to its need without overcharging and is rated for 12 , 24 , or 36 volt negative ground DC systems. Features: Conservatively rated diodes and a rustproof anodized aluminum heat sink case. Heavy duty construction Rated for systems

Shipping Notes

Free Standard Shipping on $100+ Orders to the USA.
Except Preorder products are shipped in 48 hours.
Delivery to the USA:

Standard Shipping : 3-10 business days

If time is of the essence, please consider selecting expedited delivery for faster service.

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

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Product Reviews

Verified Purchase

Ant Farmer 1

Cuba, US

★★★★★ 5

Fits well and installs easily.

Size: AF997

This filter looked about the same as the OEM filter. It installed in about a minute. The quality appeared to be fine. It was protected in a cardboard box. It fit my 2014 Subaru Outback perfectly. I just installed it an hour ago so I don’t have any long term observations about longevity or effectiveness. I can’t see any reason why it would not work as well as the original, it seemed identical.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 29, 2026

Verified Purchase

Nicholas K

Lowell, US

★★★★★ 5

Great filter

Size: AF259

This fit my Mazda CX-5 perfectly. I'm happy with the seal and quality. Great price. I will certainly reorder for my next replacement.

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Reviewed in the United States on May 19, 2026

Verified Purchase

Amazon Customer

Lowell, US

★★★★★ 5

Great fit and quality

Size: AF113

Not a complicated product, but after going to 2 different auto parts stores and this not being in stock, Amazon to the rescue. Arrived the next day and the quality is definitely on par with “store brand” ones from retailers. Definitely cheaper as well.

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Reviewed in the United States on April 23, 2026

Verified Purchase

Charlottesville, US

★★★★★ 5

Fit my 2014 Accord perfectly

Size: AF476

Seems to be the same quality as OEM. Fit perfectly. Easy to install.

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Reviewed in the United States on April 24, 2026

Verified Purchase

Becca