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Balmar 621VUPMC120DV 6-Series 120A 12V Marine Alternator Kit with MC-614 Regulator and Dual Vee Pulley

Manufacturer

Balmar

<h3>About Balmar: Marine DC Power Since 1981</h3><p>Since its founding in 1981, <strong>Balmar</strong> has built a reputation as one of the most trusted names in marine DC power. For over four decades, the company has focused exclusively on helping sailors and power boaters solve one of the most persistent challenges on the water: keeping batteries charged reliably and efficiently. That singular focus has made Balmar the go-to choice for serious mariners who demand more from their electrical systems.</p><h3>Innovative Alternator Technology</h3><p>Balmar's greatest claim to fame is its lineup of <a href="/12782-balmar-alternators-200087">marine alternators</a> — widely regarded as the highest-output and most dependable alternators available in the recreational marine market. What sets Balmar apart is not just raw output, but smart engineering. Their patented <strong>Smart Ready&reg; Alternator</strong> technology allows the alternator to communicate directly with an external regulator, enabling precise, multi-stage charging profiles that protect batteries and extend their service life. Whether you're running a modest weekend sailboat or a fully outfitted bluewater passage-maker loaded with electronics, Balmar offers an <a href="/12782-balmar-alternator-2412">alternator</a> sized and engineered for the task.</p><p>Marine environments are uniquely demanding — salt air, vibration, and the need for long, uninterrupted charging cycles put far more stress on electrical components than typical automotive applications. Balmar designs its alternators specifically for these conditions, with robust construction and thermal management that keeps performance consistent even during extended motoring passages.</p><h3>Battery Monitors &amp; Charging System Management</h3><p>A high-output alternator is only part of the equation. Knowing the true state of your battery bank is equally critical, which is why Balmar also produces a respected line of <a href="/12782-balmar-battery-monitors-volt-meters-200146">battery monitors and volt meters</a>. These instruments give mariners accurate, real-time insight into battery voltage, state of charge, and current flow — the kind of data that prevents being stranded at anchor with a dead house bank. Balmar's monitoring products are designed to integrate seamlessly with their charging ecosystem, giving you a complete picture of your DC system's health at a glance.</p><h3>Expert Support &amp; a Legacy of Trust</h3><p>Beyond the products themselves, Balmar has long been recognized for its exceptional technical support. Marine electrical systems can be complex, and Balmar's knowledgeable team has a well-earned reputation for helping customers spec the right components and troubleshoot installations. That combination of innovative hardware and genuine expertise is a big reason why Balmar has remained a privately held, customer-focused company for over 40 years — and why the brand continues to be found aboard everything from coastal cruisers to offshore racing yachts.</p>

Part Number

621VUPMC120DV
09/12/2036 2:08 PM
Sale Price

$1,004.58

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Product Details

The Balmar 621-VUP-MC-120-DV is a complete 120-amp, 12-volt marine alternator charging kit built around Balmar's best-selling 6-Series high-output alternator platform. Designed for VUP (Volvo/Universal/Perkins-style) single-foot spindle-mount engines, this factory-matched package eliminates the guesswork of building a custom charging system by pairing a high-output alternator with a smart multi-stage voltage regulator and all necessary sensors and hardware.

What's Included:

  • 621-120-DV Alternator – 120A, 12V, isolated ground, spindle-mount (single foot), with Dual Deep Vee pulley
  • MC-614 Max Charge Multi-Stage Voltage Regulator – programmable, microprocessor-controlled external regulator
  • MC-TS-A Alternator Temperature Sensor
  • MC-TS-B Battery Temperature Sensor
  • Mounting hardware

Key Features:

  • 120 Amps / 12 Volts output – ideal for vessels with moderate to heavy house battery loads
  • Dual Deep Vee (DV) Pulley – compatible with standard 1/2" dual belt drive systems
  • Dual Internal Cooling Fans with high-airflow frame for thermal management
  • Smart Ready® Technology – allows operation with or without external regulation, with built-in internal regulator redundancy
  • Isolated Ground design for clean electrical performance in marine environments
  • 1" Motorola-Style Mounting – typical for Westerbeke, Lehman, Hino, and Pathfinder engines
  • 2" Delco-Style Mounting – typical for Volvo Penta (gas & diesel), Nanni, John Deere, Perkins, Mercruiser, Pleasurecraft, Crusader, Indmar, Marine Power, and other GM-based engines
  • Maximum RPM: 12,000
  • 4.0 HP power take-off
  • USCG Title 33, ISO, SAE, and CE compliant

The included MC-614 Max Charge regulator is a multi-stage, microprocessor-controlled voltage regulator that monitors and adjusts charging based on battery temperature, charge level, and belt load, delivering an optimized charge profile for flooded, gel, AGM, and lithium battery banks. The dual temperature sensors (alternator and battery) ensure the system protects both the alternator and the battery throughout the charge cycle.

The 621-VUP-MC-120-DV is the smart choice for cruising boaters and live-aboards looking to upgrade their vessel's charging capability with a complete, pre-matched system backed by Balmar's reputation for marine-grade quality.

Awesome

perfect fit ,Fast shipping

QUICK AND EASY ORDER PROCESS

Easy to use

Shipping was a bit expensive. Sure you folks didn't have anything to do with that. Would use you again.

Ordering went quick and easy! Hopefully delivery goes quickly also!

Fast service

Thanks

AAAAA+++++

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