SKU: 47011729396

ARCO Marine Zeus A8000-48V 8kW 3.15 Alternator w/Isolated Ground (Common Rail) [4602]

Sale price$964.76 Regular price$1071.95
Save 10%

Pay in installments of $267.99 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

ARCO Marine Zeus A8000-48V 8kW 3.15 Alternator w/Isolated Ground (Common Rail) [4602]Zeus A8000 48V 8kW 3. 15 Alternator with Isolated Ground (Common Rail) 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

Zeus A8000-48V 8kW 3.15 Alternator with Isolated Ground (Common Rail)

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:

  • Must Be Used on Yanmar Common Rail Engines Introduced after 2013 (JH-CR, 3JH40, 4JH45, 4JH57, 4JH80, 4JH110).

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: 47011729396

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 9 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
K
Verified Purchase
Kevin Sanguansukdikosol
Phoenix, US
★★★★★ 5
Brightness and quality
Color: 4*2.5in Cube LED Pod
Got this for my 2024 Crosstrek. Got this one specifically due to its functionality that I wanted, quality for the price and it looks great especially DRL. I leave the Amber cover on most of the time. If you want the DRL to be on while the car is on, you can do that but it has to be rewired which I did. Love the brightness. I’ve been having this on my Crosstrek for a few months now and have no issues.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2026
T
Verified Purchase
Thomas Chapman
Charlottesville, US
★★★★★ 5
Bright lights
Color: 4*2.5in Cube LED Pod
Installed these on my Bronco as ditch lights. Very bright light and I like that you can have them be white or put the cover on them for and amber light look. Took about 30 minutes to install and wire to the upfitter switches. They shoot a wide angle covering your blind spots on dark roads. I got these to replace a three inch ditch light. They're made from heavy duty metal and stand up to the extreme weather. I like them so much that I purchased the seven inch lights and install them on the front bumper. For what they cost it was a price that I couldn't pass up. I highly recommend these lights.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 17, 2026
A
Verified Purchase
Abraham Hazim
West Palm Beach, US
★★★★★ 5
Great product
Color: 4*2.5in Cube LED Pod, Color: 4*2.5in Cube LED Pod
Great lighting and beautiful design!!!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
A
Verified Purchase
Amazon Customer
Massapequa, US
★★★★★ 5
Great lights
Color: 52Inch Lights +LED Pods+ Wiring Harness, Color: 52Inch Lights +LED Pods+ Wiring Harness
These lights are awesome. Ridiculously bright and cheap. I have nothing to compare them to but they're for being so inexpensive they are tremendously bright for being a first time installer. I cannot speak to their longevity and the moisture as I only put them on a week ago and went on trail. The whistling is definitely kind of a pain. I've tried the double sided tape people mention and it softened the whistle but when you get up to 70 mph it is obnoxiously loud I'll have to tweak it some more. If you're sensitive to loud squeezing sounds it definitely makes the ride a bit uncomfortable and I would look at other light installations instead of the 52 inch bar. If you can get past the squeeling noise or dampen the sound better than I did then you can't beat the functionality for the price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 4, 2025
D
Verified Purchase
Douglas hartman
Chelsea, US
★★★★★ 5
Brighter then I expected
Color: 52Inch Lights +LED Pods+ Wiring Harness
Should have went with a curved but fit under front bumper of f150 and is brighter then I ever imagined
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026

recommand products