The ARCO Zeus 24V 7kW alternator is a game - changer. At cruising and higher RPMs, it can generate extremely high amperage. Even at just under 3,000 alternator RPM, it continuously pumps out over 3kW (109 Amps), and at under 6,000 RPM, it almost hits 6kW (218 Amps). In real - life scenarios, a marine diesel engine at 1,500 RPM with a 2:1 pulley ratio can generate over 3kW, and a Mercedes Sprinter at 1,800 RPM with a 3.21:1 ratio can generate over 6kW! This alternator is designed to start working during cruising or at mid - to - higher RPMs. It runs cooler and provides more power compared to older, larger, and heavier designs. Unlike competitors' 24V alternators that use a 12V rotor and field current, which is less efficient and limits output at all RPMs, the ARCO Zeus uses a native 24V rotor and field current. This makes it run cooler and extends its lifespan. **Features:** It's engineered for high energy production, suitable for marine, RV, military, and commercial applications. It can rapidly charge large battery banks. With heat - shedding coatings, an exterior - located rectifier, and dual cooling fans, it maintains the coolest operating temperatures for better performance. It uses OEM components and is optimized for idle - speed performance. It reduces the need for a generator by creating extra power with your engine. The E - Coat/Cerakote helps it unleash peak performance and keeps it cool for consistent amperage output. You can use the ARCO Zeus Bluetooth Alternator Regulator for top - notch performance or lithium battery charging. It's SAE J1171 Certified and proudly made in the U.S.A. **Technical Specifications:** Voltage is 24V, field type is P, rotor poles are 16, stator size is 138mm, frame size is large, and it weighs 15.89lbs/7.2kg. It has external - only regulation, a black E - coating finish. The cut - in RPM is 1,962 Alternator RPM, and the maximum Alt RPM is 19,000. It has an M8 Thread Post side - mount battery post, a 49K6 (6 - groove, 49mm) standard pulley. **Mounting Application:** It can replace most domestic styles using a single 1 or 2” mounting foot, like Motorola and Prestolite models.
![ARCO Marine Zeus 24V 7kW Single Foot Alternator with Isolated Ground [4505]](https://img.iloveuxmk.com/usImg/1a/a5f655cd35cafe7528437b00f0126772.jpg)
Using the ARCO Zeus 24V 7kW alternator is straightforward. First, make sure your engine meets the RPM requirements for the alternator to start generating power. The cut - in RPM is 1,962 Alternator RPM, so your engine should reach this speed to get the alternator going. When installing, check that the mounting foot matches your existing setup as it can replace most domestic styles using a single 1 or 2” mounting foot. You can use the provided pulley hardware for the standard pulley. For charging large battery banks, just let the alternator do its job. It's designed to rapidly charge them. If you want to get the maximum performance or charge lithium batteries, use the ARCO Zeus Bluetooth Alternator Regulator. As for maintenance, keep an eye on the operating temperature. The alternator has features like heat - shedding coatings, an exterior - located rectifier, and dual cooling fans to keep it cool, but don't let it run at extremely high temperatures for long periods. The maximum continuous operating temperature is 100°C / 212°F. Also, check the diodes periodically as they are crucial for the alternator's performance. If you notice any issues with power output or strange noises, it might be time to have a professional take a look. Overall, with proper use and care, this alternator will serve you well in marine, RV, military, or commercial applications.