Mastervolt Alpha Pro III w/Extended 13 Harness [45513040] Mastervolt
Mastervolt Alpha Pro III w/Extended 13 Harness [45513040] Mastervolt

Mastervolt Alpha Pro III w/Extended 13 Harness [45513040]

Authorized Mastervolt Dealer | Full Vendor Warranty Included

Customers rate us 4.6/5 based on 417 reviews.
$448.99
$547.99
$448.99
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Mastervolt Alpha Pro III w/Extended 13 Harness [45513040] Mastervolt

Mastervolt

Mastervolt Alpha Pro III w/Extended 13 Harness [45513040]

$547.99 $448.99
Mastervolt Alpha Pro III w/Extended 13 Harness [45513040] Mastervolt

Mastervolt

Mastervolt Alpha Pro III w/Extended 13 Harness [45513040]

$547.99 $448.99
  • Description

Alpha Pro III with Extended 13' Harness

The Alpha Pro Regulator Kit is a universal regulator for N-type alternators. It transforms every alternator into a fully temp controlled 3-step charger, no with a longer harness with alternator temperature sensor included.

Specifications:

  • Link to MasterShunt: Yes
  • Connection to Mastervolt Alternator: Yes
  • Cooling: Fanless
  • Nominal Output Voltage: 12V/24V
  • Display: LED
  • MasterBus Powering: Yes 

Benefits of a Mastervolt Charge Regulator

The Alpha Pro charge regulator maximizes the output of Mastervolt Alpha alternators or any other alternator by regulating the alternator in a way that the batteries receive the optimum charge. The proven 3-step+ charge method used by all Mastervolt battery chargers guarantees fast and safe charging of your batteries.

The Alpha Pro helps to cut emissions by requiring less run time because it maximizes the power from any alternator. A battery can be charged quickly even at very low RPM, especially when connected to an Alpha series alternator. By connecting the Alpha Alternator to a Battery Mate or battery isolator, several battery banks can be charged simultaneously.

Does your tachometer sometimes indicate zero while the engine is running? The ‘keep alive’ function of the Alpha Pro gets rid of this problem forever.

Frequently Asked Questions

Yes! We provide free and fast shipping on MOST orders within the continental United States. However, some specific brands and items will require a quote. You can live chat or call us for a quote
Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.
We offer easy returns as long as your item meets the conditions outlined in our Return Policy. Items must be unused, in original packaging, and returned within the specified return window.
Absolutely! Our in-house product experts are here to help. Live chat or call us 513-743-829 for personalized advice before or after your purchase.
Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.
Yes, we only sell 100% authentic, brand-new products, sourced directly from our manufacturers or authorized distributors.

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At Green Vista Living, we pride ourselves on delivering top-quality products and exceptional service to solar professionals and homeowners alike. Here's what our customers have to say about their experiences with us.

Kevin Leary
May 18, 2025
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Off grid Kit • Dec 21, 2025
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Shipment was slow due to high demand, but the team kept me informed and ensured everything arrived properly.

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