Sale!
ARCO Marine Zeus A225S 1″-2″ Alternator w/Terminal Block [4014]
Original price was: $460.68.$299.06Current price is: $299.06.
22 in stock
Description
Zeus A225S 1″-2″ 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
- 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. Our advanced coating absorbs less heat, keeping the A225S cooler. This translates to more amperage for sustained periods.
- For maximum performance or lithium battery charging, use an ARCO Zeus Bluetooth alternator regulator.
- SAE J1171 Certified.
- Proudly made in the U.S.A.
Technical Specifications:
- Voltage – 12v
- Field Type – P
- Rotor Poles – 16
- Stator Size – 130mm
- Frame Size – Small
- Weight – 12lbs/6.7kg
- Regulation – External Only
- 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) – 254 Amps
- Sustained Cruising Output (Hot, 6,000 RPM) – 187 Amps
- Sustained Idle Output (Hot, 3,000 RPM) – 157 Amps
Mounting Application:
- Replaces most domestic styles using a single 1 or 2” mounting foot (e.g., Motorola, Prestolite).

![Balmar Alternator 100 AMP 12V 1-2" Single Foot Spindle Mount J10 Pulley w/Isolated Ground [621-100-J10]](https://www.goodcircuitsupply.com/wp-content/uploads/2026/09/balmar-alternator-100-amp-12v-1-2-single-foot-spindle-mount-j10-pulley-w-isolate.webp)
![ARCO Marine Zeus A275L 3.15 Alternator w/Isolated GroundTerminal Block [4019]](https://www.goodcircuitsupply.com/wp-content/uploads/2026/09/arco-marine-zeus-a275l-3-15-alternator-w-isolated-groundterminal-block-4019.webp)
![ARCO Marine Zeus A225S 1"-2" Alternator w/Terminal Block [4014]](https://www.goodcircuitsupply.com/wp-content/uploads/2026/09/arco-marine-zeus-a225s-1-2-alternator-w-terminal-block-4014.webp)
![ARCO Marine Premium Replacement Alternator w/Multi-Groove Pulley – 12V 55A [60055]](https://www.goodcircuitsupply.com/wp-content/uploads/2026/09/arco-marine-premium-replacement-alternator-w-multi-groove-pulley-12v-55a-60055.webp)
![ARCO Marine Zeus A275L 1″-2″ Single Foot Alternator w/Isolated GroundTerminal Block [4028]](https://www.goodcircuitsupply.com/wp-content/uploads/2026/09/arco-marine-zeus-a275l-1-2-single-foot-alternator-w-isolated-groundterminal-bloc.webp)
![Balmar Alternator 170 AMP 12V 3.15″ Dual Foot Saddle J10 Pulley [XT-CR-170-J10]](https://www.goodcircuitsupply.com/wp-content/uploads/2026/09/balmar-alternator-170-amp-12v-3-15-dual-foot-saddle-j10-pulley-xt-cr-170-j10.webp)
![Balmar Temperature Sensor Alternator – 80″ Length [MC-TS-A80]](https://www.goodcircuitsupply.com/wp-content/uploads/2026/09/balmar-temperature-sensor-alternator-80-length-mc-ts-a80.webp)
![ARCO Marine Premium Replacement Alternator w/Single Groove Pulley – 12V 70A [20102]](https://www.goodcircuitsupply.com/wp-content/uploads/2026/09/arco-marine-premium-replacement-alternator-w-single-groove-pulley-12v-70a-20102.webp)
![Balmar 621 Series Alternator – Spindle Mount(Single Foot) – 100A – 12V [621-100-SV]](https://www.goodcircuitsupply.com/wp-content/uploads/2026/09/balmar-621-series-alternator-spindle-mount-single-foot-100a-12v-621-100-sv.webp)
![ARCO Marine Premium Replacement Alternator w/65mm Multi-Groove Pulley – 12V 70A [20800]](https://www.goodcircuitsupply.com/wp-content/uploads/2026/09/arco-marine-premium-replacement-alternator-w-65mm-multi-groove-pulley-12v-70a-20.webp)
![Balmar Offshore Repair Kit 60 Series 12V w/Bearings, Brushes, Regulator/Rectifier [7060]](https://www.goodcircuitsupply.com/wp-content/uploads/2026/09/balmar-offshore-repair-kit-60-series-12v-w-bearings-brushes-regulator-rectifier-.webp)