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Arco Starting & Charging MK1201 High Output Alternator Mounting & Bracket Kit - GMK 3T Transit Style

Manufacturer

Arco Starting & Charging

<h3>ARCO Starting &amp; Charging: The Marine Industry&apos;s Gold Standard</h3><p>When a boater turns the key and nothing happens miles from the dock, the name they wish they had trusted is <strong>ARCO Marine</strong>. For more than six decades, ARCO Starting &amp; Charging has been the benchmark for dependable marine engine electrical components — building and testing every unit at their facility in Pensacola, Florida to ensure each part meets or exceeds original equipment manufacturer (OEM) specifications before it ever reaches a customer.</p><p>Founded in 1960, ARCO set out with a straightforward mission: deliver peace of mind to boat owners and marine technicians through products they can rely on. That philosophy hasn&apos;t changed. Every component ARCO manufactures — from outboard <a href="/7236-arco-starting-charging-starter-motor-4152">starter motors</a> to high-output alternators — is rigorously load-tested beyond normal operating conditions. It&apos;s the kind of commitment that has made ARCO the trusted choice of professional marine service technicians and weekend boaters alike for generations.</p><h3>Purpose-Built for the Harshest Marine Environments</h3><p>Saltwater, humidity, and vibration are relentless adversaries for any electrical component. ARCO engineers their products specifically for these conditions. Their <a href="/7236-arco-starting-charging-tilttrim-motors-201071">tilt/trim motors</a> and <a href="/7236-arco-starting-charging-trim-and-tilt-units-201108">trim and tilt units</a> are designed to perform reliably through years of saltwater exposure, while their <a href="/7236-arco-starting-charging-alternators-200087">alternators</a> — including the advanced Zeus High Output Alternator line — are purpose-built to charge modern battery banks faster and handle the electrical demands of today&apos;s feature-rich vessels. ARCO makes OEM replacement parts compatible with leading engine manufacturers including Mercury, Yamaha, Volvo Penta, MerCruiser, Honda, Evinrude, Suzuki, and many others, making cross-referencing straightforward for technicians and DIYers alike.</p><h3>Innovation with the Zeus High Energy Platform</h3><p>ARCO&apos;s Zeus line represents the brand&apos;s push into next-generation marine charging technology. Zeus High Output Alternators and Bluetooth-enabled voltage regulators are engineered for multi-voltage compatibility and rated IP68 for protection against water intrusion — a critical specification in marine applications. The Zeus ecosystem is purpose-built to support lithium battery banks, high-draw accessories, and demanding live-aboard or commercial use cases where consistent power output is non-negotiable.</p><h3>OEM Quality, Factory Warranty, American-Made</h3><p>ARCO backs their entire rotating electric parts lineup — including their <a href="/7236-arco-starting-charging-starters-inboard-201008">inboard starters</a> — with the ARCO Assurance warranty program, offering coverage against defects in materials and workmanship. Manufacturing, quality testing, warehousing, and fulfillment all take place in the United States, giving buyers confidence in consistent quality control from start to finish. For anyone maintaining a vessel and unwilling to compromise on reliability, ARCO Starting &amp; Charging remains the definitive choice in marine engine electrical components.</p>

Part Number

MK1201
09/12/2036 9:01 AM
Sale Price

$1,247.17

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Product Details

The Arco Starting & Charging MK1201 is a complete mounting and bracket kit engineered to install high-output auxiliary alternators on the Ford Transit 3.5L EcoBoost V6. Designed around the GMK 3T Transit-style mount configuration, this kit provides all the hardware needed to properly position and secure a secondary alternator to the engine without fabrication or custom parts.

This bracket kit is compatible with both dual rear wheel and single rear wheel Ford Transit variants, making it a versatile solution for a wide range of Transit builds. It is designed to work in conjunction with the Arco BLT1102 1375mm drive belt (sold separately) and a 49mm pulley, and is commonly paired with Arco Zeus high-output alternators for van conversion, marine shore power, and mobile power generation applications.

Key Features:

  • GMK 3T Transit-style mount design engineered specifically for the Ford Transit 3.5L EcoBoost V6
  • Compatible with both single and dual rear wheel Ford Transit configurations
  • Designed for use with Arco high-output auxiliary alternators
  • Works with Arco BLT1102 1375mm belt and 49mm pulley (sold separately)
  • Ideal for van conversions, mobile power, and off-grid energy system builds
  • Manufacturer Part Number: MK1201

The Arco MK1201 mounting kit is the purpose-built solution for anyone adding a high-output alternator to a Ford Transit 3.5L EcoBoost platform, ensuring proper alignment, secure fitment, and a clean professional installation.

I never received anything about shipping so I contacted customer support. They said it was a direct shipment and they would check on it for me and get back to me. I never heard back from them. Shortly after that I did receive a message from the carrier saying they have my shipment and scheduled a delivery. They said they would call me 30 mins before the delivery so I could get off work and come to inspect it before signing for it. That didnt' happen either my wife called me first thing in the morning and say they are here delivering it now so I had to run home so I could inspect it. The driver was really nice and waited for me to get there.

Service was great. I received the cleats faster than expected.

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