Zeus A220/3000W 12V HD High Output Alternator - Pad MountARCO Zeus Heavy Duty Alternatoris engineered for maximum output and extended-duty performance in demanding marine and diesel applications. Delivering the highest power output in its class, this high-amperage alternator is built to rapidly charge large battery banks and support high electrical loads with confidence.Zeus Heavy Duty operates at exceptionally cool temperatures thanks to dual internal cooling fans, ensuring sustained performance, extended service life, and reliable power production over long run times. Its high-energy output reduces reliance on onboard generators by producing more usable power directly from your engine.Features: Replace your noisy generator Designed for Extended Duty Operation Engineered for high energy production Rapidly charges large battery banks Coolest operating temperatures for increased performance, with dual internal fans Reduces the need for a generator by creating additional power with your engine External Regulation Required SAE J1171 Certified Regulation:External Only (EX): These units will come with a terminal block and a P-Type harness. They will only work with an external regulator, such as an ARCO Zeus Bluetooth alternator regulator.Specifications: Voltage: 12V Field Type: P Rotor Poles: 12 Weight: 18.7 lb (8.5 kg) Regulation: External Only (EX) Cut-In RPM: 1,288 Maximum Alt RPM: 10,000 Rear Battery Post: M8 Thread Standard Pulley: K8 59 mm Shaft Diameter: 7/8 in (22.22 mm) Avalanche Diodes: 50 amps Max Output (Cold): 249 amps Sustained Cruising Output (Hot, 6,000 RPM): 228 Amps Sustained Idle Output (Hot, 3,000 RPM): 200 amps Max Continuous Operating Temperature: 125C table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Truck Freight: No Oversized: No