SKU: 78059670953

ARCO Marine Zeus A8000-48V 8kW 3.15 Alternator w/Isolated Ground [4601]

Sale price$964.76 Regular price$1071.95
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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

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Description

ARCO Marine Zeus A8000-48V 8kW 3.15 Alternator w/Isolated Ground [4601]Zeus A8000 48V 8kW 3. 15 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 3.15 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 small case styles using a 3.15” J180 saddle style mount (e.g., Hitachi, Lucas, Mitsubishi) Most Yanmars.

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: 78059670953

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Alissa
Lexington, US
★★★★★ 5
Highly recommend for face sunscreen care!
Style: SPF 30, Size: 1 Fl Oz (Pack of 1)
A great choice for waterside sun protection. Rolls on smoothly and protects your skin from sun. As someone with sensitive facial skin I was relieved to find no issues after applying for a week straight. I plan to keep this product regularly on hand.
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Reviewed in the United States on May 25, 2026
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Jason
Los Angeles, US
★★★★★ 4
Expensive but good
Style: SPF 30, Size: 8 Fl Oz (Pack of 1)
It's not the best for your skin but it works and doesn't leave white cast and is nice and easy to apply to the skin. It smells good too but youll run out quick and have to buy more. Lasts like a month or something if you are apply to face, neck, arms, legs.
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Reviewed in the United States on September 2, 2025
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Laurie Holl
Port Orchard, US
★★★★★ 5
Compact, easy to use
Style: SPF 30, Size: 1 Fl Oz (Pack of 1)
Easy to pack in a purse or your hiking bag, smells and works great, no white residue.
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Reviewed in the United States on May 3, 2026
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Minnesott Sailor
Natrona Heights, US
★★★★★ 5
One of my favorite Sunscreens
Style: SPF 30, Size: 3 Fl Oz (Pack of 1)
This sunscreen is great. When applying, I am very pleased at how easy it is to spread and soak into my skin. It also stays on during the day and also whenever I get in the water. I love the smell as well.
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Lorri D
New York, US
★★★★★ 5
Item As Described
Style: SPF 30, Size: 8 Fl Oz (Pack of 1)
Great product. Smells like the beach. The only thing I dislike about it is that it didn’t have a safety seal.
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Reviewed in the United States on June 6, 2026

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