ARCO Marine Zeus 24V 4kW Low Turn On (LTO) N62 Alternator w/Clutch Pulley [4404]

Zeus 24V 4kW Low Turn-On (LTO) N62 Alternator with Clutch Pulley

The ARCO Zeus 24V 4kW LTO alternator is a game-changer. It starts at lower RPMs, runs cooler, and offers more power compared to those big and heavy old - style alternators. At just under 1,500 RPM, it continuously generates over 1.4kW (51 Amps), and at 2,000 Alternator RPM, it can almost reach 2.4kW (87 Amps). In real - world use, a marine diesel engine idling at 750 RPM with a 2:1 pulley ratio can generate over 1.5kW (55 Amps), and a Mercedes Sprinter at 750 RPM with a 3.21:1 ratio can generate over 2.5kW (91 Amps)!

Unlike competitors' 24V alternators that use a 12V rotor and field current, which are less efficient and limit output at all RPMs, the ARCO alternator uses a native 24V rotor and field current. This makes it run cooler and extends its lifespan.

Features:

• Designed for high - energy production.
• Great for marine, RV, military, and commercial uses.
• Charges large battery banks quickly.
• Operates at low temperatures for better performance with heat - shedding coatings, an externally located rectifier, and dual cooling fans.
• Uses OEM components.
• Performs well at cruising speeds.
• Creates extra power with your engine, reducing the need for a generator.
• With E - Coat/Cerakote, it keeps the high - amp alternator cool for steady amperage output.
• For best performance or lithium battery charging, pair it with the ARCO Zeus Bluetooth Alternator Regulator.
• SAE J1171 Certified.
• Made in the USA.

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 the factory dual alternator on many Sprinter RVs, including Roadtrek, Thor, Winnebago, etc. It's suitable for all Mercedes Sprinter applications with the N62 option and meets current Mercedes Upfitter weight and PTO requirements.

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Quick Guide (pdf)
Brochure (pdf)

Using your ARCO Marine Zeus 24V 4kW Low Turn - On Alternator is straightforward. First, make sure to mount it properly according to the mounting application details provided. It can replace the factory dual alternator on many Sprinter RVs, so follow the instructions carefully for a perfect fit. When using, it will start generating power at lower RPMs, which means you can get electricity even when your engine is running at a relatively low speed. For charging large battery banks, it works great and does it quickly. If you have lithium batteries, we recommend using the ARCO Zeus Bluetooth Alternator Regulator for maximum performance. As for maintenance, keep an eye on its operating temperature. The alternator has features like heat - shedding coatings, an externally located rectifier, and dual cooling fans to keep it cool, but you still want to avoid overheating. Check it regularly for any signs of damage or wear. And remember, it's SAE J1171 Certified and proudly made in the USA, so you can trust its quality and performance.