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ARCO Marine

ARCO Marine Zeus A275L 3.15 Alternator w/Isolated Ground & Terminal Block

In StockNewSKU: 4019
$1062.16$1249.60per unit
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Description

Zeus A275L 3.15 Alternator with Isolated Ground & 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.
  • Heat shedding coatings
  • Rectifier located on housing exterior
  • Dual cooling fans
  • OEM components
  • 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, keeping the A275L cooler for sustained amperage output.
  • Use the ARCO Zeus Bluetooth Alternator Regulator for maximum performance or lithium battery charging.
  • SAE J1171 Certified.
  • Models available with internal/external voltage regulator.
  • Proudly 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 - Internal/External (Internally regulated with adaptor for optional external regulation.)
  • 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
  • Sustain

Accessories (2)

ARCO Marine 1000A/50mV Shunt

SKU: ST1000

ARCO Marine 1000A/50mV Shunt

$74.76

ARCO Marine 500A/50mV Shunt

SKU: ST500

ARCO Marine 500A/50mV Shunt

$31.91

Specifications

SKU4019
UPC695845960956
BrandARCO Marine
CategoryElectrical
Country of Origin
Weight16.25
Dimensions10 x 10 x 10
StatusActive
Last Synced8/17/2026, 1:13:43 AM

Compliance & Shipping

Returnable

Product Literature

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Price$1062.16$8.51$84.40$20.74$14.45
BrandARCO MarineARCO MarineBalmarARCO MarineVictron Energy
ConditionNewNewNewNewNew
AvailabilityIn StockIn StockIn StockIn StockIn Stock
Weight16.259.750.111.210.52
Dimensions10 x 10 x 108 x 8 x 710 x 4 x 09 x 7 x 77 x 5 x 1
SKU401960050APM-1260075BPC900200014
CountryKOREA, SOUTHUNITED STATESKOREA, SOUTHCHINA
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$1062.16