A275L-12-VT-EX-49K6 - Arco Marine Zeus A275L Vortec Alternator w/Terminal Block

Zeus A275L Vortec 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. 
• Runs 8 - 20% cooler than incumbent alternators due to: Heat shedding coatings, Rectifier located on 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 Mando-type alternators using Vortec/GM pad mounting feet. (Found on many Mercruiser and Volvo Penta 3.0GLM, 3.0GLP, 4.3GXi, 5.7GiL, 5.7GXiL Marine Engines.) (GM Blocks)

The ARCO Marine Zeus A275L Vortec Alternator with Terminal Block, part number A275L-12-VT-EX-49K6, is a permanent magnetic alternator designed for high energy production in demanding applications. This 12v unit is engineered for marine, RV, military, and commercial use, specifically targeting scenarios requiring rapid charging of large battery banks. It addresses the challenge of insufficient power generation, particularly at lower engine speeds, by providing substantial output even at idle. The A275L features a robust design with heat-shedding coatings, an externally located rectifier, and dual cooling fans, contributing to cooler operating temperatures compared to standard alternators. Its E-Coat/Cerakote finish further aids in thermal management, allowing for sustained amperage output. This alternator is suitable for IT professionals and procurement managers seeking a reliable power solution for systems that replace Mando-type alternators using Vortec/GM pad mounting feet, commonly found on Mercruiser and Volvo Penta marine engines.