SKU: 75060491760

ARCO Marine Zeus A8000-48V 8kW J180 4" Alternator w/Isolated Ground [4603]

Sale price$964.76 Regular price$1071.95
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

ARCO Marine Zeus A8000-48V 8kW J180 4" Alternator w/Isolated Ground [4603]Zeus A8000 48V 8kW J180 4" Alternator with Isolated Ground The ARCO Zeus A8000 48V alternator turns on at lower RPMs, runs cooler, and provides more power than other 48V alternators that are larger and heavier. This alternator continuously generates over 3kW (55 Amps)at 2,500 RPM and almost 6kW (111 Amps) at 4,000 Alternator RPM. Put in real world terms, a marine diesel engine charging at 1,200 RPM with a 3. 13: 1 pulley ratio is generating just over

Zeus A8000-48V 8kW J180 4" Alternator with Isolated Ground

The ARCO Zeus A8000-48V alternator turns on at lower RPMs, runs cooler, and provides more power than other 48V alternators that are larger and heavier. This alternator continuously generates over 3kW (55 Amps)at  2,500 RPM and almost 6kW (111 Amps) at 4,000 Alternator RPM. Put in real-world terms, a marine diesel engine charging at 1,200 RPM with a 3.13:1 pulley ratio is generating just over 5kW (97 Amps), and a Mercedes Sprinter at 750 RPM with a 3.21:1 ratio is generating over 3kW (55 Amps)!

Instead of using rotors designed for 48 volts, many competitor alternators simply use their 12V rotors which is less efficient and limits output at all RPMs. In this scenario, your external smart regulator must drastically reduce field, by as much as 78%. If this is not done correctly, you run the risk of destroying the unit and damaging other components in your system. ARCO utilizes a native 48V rotor and field current. This results in our 48V alternator running cooler than competitor’s 48V alternators, having a direct impact on the alternator’s 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 idle 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 - 48v
  • 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 - 1,920 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, 80A Rated, Avalanche
  • Max Output (Cold, 9,000 RPM) at 53.5v - 180 Amps - 9,360 Watts – 14.8 kW PTO
  • Sustained Cruising Output (Hot, 6,000 RPM) at 53.5v - 138 Amps - 7,383 Watts – 10.5 kW PTO
  • Sustained Idle Output (Hot, 2,500 RPM) at 53.5v - 78 Amps 4,173 Watts – 6kW PTO
  • Max Continuous Operating Temperature - 100°C / 212°F

Mounting Application:

  • Replaces most Volvo Penta alternators using a 4” J180 saddle-style mount. Also, used on many larger industrial-based engines.

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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 75060491760

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4.9 ★★★★★
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Kevin Paul Gauthier
Bozeman, US
★★★★★ 5
Strong sturdy reliable and versatile
Color: Black
This is a great little side piece to use for your kitchen sink or bathroom mine is in my kitchen sink it works great it sits on the side it's the perfect length holds my scrubber soap and other stuff I need instead of using a makeshift bowl. It's sturdy rust-resistant and I put it through the tests it gets wet every time I do which is every day in this house. You can use it for just about anything. There are no suction cups on it but there is a gray under it that catches all the loose water which is also very convenient. It looks modern and compliments most sinks and kitchens well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 27, 2025
A
Verified Purchase
Andrew Shuler
Boise, US
★★★★★ 4
Good Quality but Limited Space for Multiple Bottles
Color: Black
This organizer is decent quality, but it ended up being smaller than I expected. For reference, I usually keep the following items at my sink: • Dawn squeeze dish soap • Mrs. Meyers hand soap • Dr. Brown’s bottle soap • A sponge • A bottle brush All of these items fit comfortably in my previous sink caddy that I bought on Amazon. Unfortunately that one eventually started peeling and rusting, which is why I replaced it. With this one, the narrow section on the left side limits how much you can actually store. It works well for the brush, but it reduces the usable space for bottles. Because of that, fitting multiple soap bottles plus a sponge is a little tight. I also think my previous organizer was slightly wider, which made a bigger difference than I realized. One feature I do like is the removable plastic tray on the bottom. It catches water well and keeps the counter from getting messy, which is a nice touch. Overall, it’s usable and I will keep it, but if you normally keep several bottles and tools at your sink like I do, I would recommend paying close attention to the measurements before ordering.
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Reviewed in the United States on March 10, 2026
S
Verified Purchase
sheryl tumey
Dallas, US
★★★★★ 5
Fits well in any space
Color: Black
This is a great little caddy. It sits nicely in the small area I have and keeps all my stuff organized. The tray comes out to clean it.
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Reviewed in the United States on May 3, 2026
S
Verified Purchase
SALLY
Los Angeles, US
★★★★★ 5
Wonderful size and holds the essentials.
Color: A-silver
I have no room for something bigger because I have a drop in sink. This is working wonderful. There is room for a scrubby, sponge my stove top cleaner and scrapper for stove. The tray below to catch any water is great and very easy to remove and drain. It takes a second to do. Great size as it is not huge but holds what I need.
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Reviewed in the United States on March 13, 2026
J
Verified Purchase
jaslin5
San Leandro, US
★★★★★ 5
Kitchen caddy organizer.
Color: Black
Kitchen caddy organizer is perfectly suited to declutter your kitchen countertop sink area. just the right size to hold a sponge, soap dispenser, and a scrub brush or other utility. Nice design, easy to clean and economical.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026

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