04022 - Arco Marine Zeus A275L J-180 4" Alternator w/Terminal Block

Zeus A275L J-180 4" Alternator with Terminal Block

The highest power output alternator in its size/class. 

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.
• It runs 8 - 20% cooler than incumbent alternators due to heat-shedding coatings, a refrigerator on the housing exterior, dual cooling fans, and OEM components.
• It is 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. Our advanced coating absorbs less heat, keeping the A275L cooler. This translates to more amperage for sustained periods.
• Use an ARCO Zeus Bluetooth alternator regulator or lithium battery charging for maximum performance.
• SAE J1171 Certified.
• Made in the U.S.A.

Technical Specifications:

• Voltage - 12v
• Field Type - P
• Rotor Poles - 16
• Stator Size - 138mm
• Frame Size - Large
• Weight - 14.9 lbs/6.7 kg
• Regulation - External Only (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.) 
• Output Voltage - 14.1v (Default)
• Finish - (Black) Cerakote or E-coating
• Cut-In RPM - 1,061 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) - 311 Amps
• Sustained Cruising Output (Hot, 6,000 RPM) - 227 Amps
• Sustained Idle Output (Hot, 3,000 RPM) - 198 Amps
• Max Continuous Operating Temperature - 110°C / 230°F

Mounting Application:

• Replaces most Volvo Penta alternators using a 4” J180 saddle-style mount

The ARCO Marine Zeus A275L J-180 4" Alternator with Terminal Block (part number 04022) is a permanent magnetic alternator designed for high energy production in demanding environments. This 12v unit is suitable for marine, RV, military, and commercial applications where rapidly charging large battery banks is critical. It features a J-180 4-inch saddle-style mount, making it a replacement option for many Volvo Penta alternators. The alternator incorporates heat-shedding coatings, dual cooling fans, and OEM components, contributing to cooler operation compared to some incumbent alternators. It is optimized for performance at idle speeds, providing sustained output of 198 Amps at 3,000 RPM (hot). The A275L requires an external regulator, such as an ARCO Zeus Bluetooth alternator regulator, for operation. It comes with a terminal block and a P-Type harness. This US-made, SAE J1171 certified alternator is intended for IT and procurement professionals seeking a robust power generation solution for compatible systems.