SKU: 20096227505

ARCO Marine Zeus 24V 4kW Low Turn On (LTO) 1"-2" Single Foot Alternator w/Isolated Ground [4405]

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Description

ARCO Marine Zeus 24V 4kW Low Turn On (LTO) 1"-2" Single Foot Alternator w/Isolated Ground [4405]Zeus 24V 4kW Low Turn On (LTO) 1" 2" Single Foot Alternator with Isolated Ground The ARCO Zeus 24v 4kW LTO alternator turns on at lower RPMs, runs cooler, and provides more power than older designs that are larger and heavier. This alternator continuously generates over 1. 4kW (51 Amps) at just under 1,500 RPM and almost 2. 4kW (87 Amps) at 2,000 Alternator RPM. Put in real world terms, a marine diesel engine idling at 750 RPM with a 2: 1 pulley ratio

Zeus 24V 4kW Low Turn On (LTO) 1"-2" Single Foot Alternator with Isolated Ground

The ARCO Zeus 24v 4kW LTO alternator turns on at lower RPMs, runs cooler, and provides more power than older designs that are larger and heavier. This alternator continuously generates over 1.4kW (51 Amps) at just under 1,500 RPM and almost 2.4kW (87 Amps) at 2,000 Alternator RPM. Put in real-world terms, a marine diesel engine idling at 750 RPM with a 2:1 pulley ratio is generating over 1.5kW (55 Amps), and a Mercedes Sprinter at 750 RPM with a 3.21:1 ratio is generating over 2.5kW (91 Amps)!

The ARCO Zeus 24v 4kW alternator turns on at lower RPMs, runs cooler, and provides more power than older designs that are larger and heavier. The newest generation of 24V performance has arrived.

Competitor’s 24V alternators utilize a 12V rotor and field current which is less efficient and limits output at all RPMs. ARCO utilizes a native 24V rotor and field current. This results in our 24V alternator running cooler than competitor’s 24V alternators, having a direct impact onthe  alternator lifespan.

Features:

  • Engineered for high energy production.
  • Suitable for marine, RV, military, and commercial applications.
  • Rapidly charges large battery banks.
  • Coolest operating temperatures for increased performance:
  • Heat shedding coatings
  • Rectifier located on housing exterior
  • Dual cooling fans
  • OEM components
  • Optimized for performance at cruising speeds.
  • Reduces the need for a generator by creating additional power with your engine.
  • Unleash peak performance with E-Coat/Cerakote, keeping the high amp alternator cooler for sustained amperage output.
  • Use the ARCO Zeus Bluetooth Alternator Regulator for maximum performance or lithium battery charging.
  • SAE J1171 Certified.
  • Proudly made in the U.S.A.

Technical Specifications:

  • Voltage - 24v
  • Field Type - P
  • Rotor Poles - 16
  • Stator Size - 138mm
  • Frame Size - Large
  • Weight - 15.89lbs/7.2kg
  • Regulation - External Only
  • Finish - (Black) E-coating
  • Cut-In RPM - 1,072 Alternator RPM
  • Maximum Alt RPM - 19,000
  • Battery Post - M8 Thread Post, Side Mount
  • Standard Pulley - 49K6 (6-groove, 49mm)
  • Pulley Mount - 17mm diameter shaft, 25mm long, threaded M17 x 1.5
  • Pulley Hardware - M17 x 1.5 x 24mm nut, w/ 18mm ID x 29mm OD washer (Included)
  • Diodes - 6 positive, 6 negative, 50A Rated, Avalanche
  • Max Output (Cold, 9,000 RPM) at 27.5v - 144 Amps - 3,960 Watts – 5.7Kw PTO
  • Sustained Cruising Output (Hot, 6,000 RPM) at 27.5v - 130 Amps - 3,575 Watts – 5.1Kw PTO
  • Sustained Idle Output (Hot, 3,000 RPM) at 27.5v - 108 Amps - 2,970 Watts – 4.2kW PTO
  • Max Continuous Operating Temperature - 100°C / 212°F

Mounting Application:

  • Replaces most domestic styles using a single 1” or 2” mounting foot (e.g., Motorola, Prestolite).

Quick Guide (pdf)
Brochure (pdf)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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]
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SKU: 20096227505

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KW
West Palm Beach, US
★★★★★ 5
Insightful inside scoop of Blizzard
Format: Audiobook
An intriguing, well-written exploration of Blizzard’s history and its staff, from inception to modern day, and their design decisions, successes and failures along the way. I loved the many quoted insights, and learning more than just the surface level story that might be found on typical gaming news outlets.
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Reviewed in the United States on November 25, 2025
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Outgrabe
Dallas, US
★★★★★ 5
This book really helps organize a process that is inherently chaotic
Format: Kindle
I'm working on a series of novels about a world of talking animals that grows up after humans die out from complications of climate change. Every species has its own culture. I got through the first book and well into the second before I realized that I needed some way to codify all the cultural details. I had lots of ideas, but no way to organize them, and as I moved towards the third book of the series, which would require creating seven or eight whole cultures, I was feeling overwhelmed. Creating Life and the free templates the author provides as a download are proving to be very useful tool. I look forward to reading the other two books in this series, too.
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Reviewed in the United States on January 15, 2021
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Lisa Montes
Louisville, US
★★★★★ 5
An excellent book
Format: Kindle
I am a new fantasy fiction writer, and the detail of this book really helped me out very much. As I was searching Amazon for a book on this topic, this was one of the few that stood out. The author also offers continuous lessons on world building through his free newsletter, which I also find helpful. I highly recommend this book. Thank you Randy. L.M. Montes
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Reviewed in the United States on January 6, 2020
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Desert Mambo
Grantham, US
★★★★★ 4
Both books in this series are worthwhile reference sources
Format: Kindle
Great books--I got both this one and Creating Places. I simply stumbled upon both books online when looking for something about plotting, and I bought them both, and am glad I did. I'm a fairly experienced writer in literary genres, but fantasy/sci-fi are different. The first book I got, Creating Places, was immediately useful as I was creating a land ringed with tall mountains, and I wondered about rainfall--this book answered my question about how mountains effect rainfall! It's not like you couldn't look some of this stuff up in other ways, but having it all in one place was very useful to me. This one still had tips I was interested in, but I agree with the reviewer who noted it did feel like it was more about world building for world building's sake (at least in this book). Plenty of things didn't apply to what I'm writing, but if you use these as a handy reference--rather than a "how to" book, I still think there is a lot of use here. (Plus, when I bought it, the book was under $3, so I figured why not?)
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Reviewed in the United States on February 19, 2018
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Kayla Mahan
Cuba, US
★★★★★ 5
A lot to think on!
Format: Kindle
I've been world building for several years now and thought I'd pick up this book just to see someone else's thoughts. This book really brought up some fun points I've skipped and gave me a lot of tools, can't wait to read the next one!
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Reviewed in the United States on December 12, 2025

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