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Description
ARCO Marine Zeus A275L 1"-2" Single Foot Alternator w/Terminal Block [4027]Zeus A275L 1" 2" Single Foot 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
Zeus A275L 1"-2" Single Foot 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 most domestic styles using a single 1” or 2” mounting foot (e.g., Motorola, Prestolite)
Quick Guide (pdf)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Attractive and Solid Laptop Stand
Color: Walnut, Color: Walnut
The premium quality at this affordable price is a great deal to me. You'd see these sort of designs sold on high-end desk organization companies at expensive ($$) prices. In addition to being aesthetically pleasing, this is a solid laptop stand that was built with the utmost attention to detail. The walnut panels are lined with scratch-resistant felt pads while the aluminum base has a silicone cushion to protect your devices when placing them in. The silicone feet and sturdy weight prevents the stand from moving and tipping over. The adjustability feature is great, especially if you want to accommodate several devices or even books. Per its specifications, I find that it accurately accommodates items ranging from 2cm (0.7in) up to 4cm (1.5in) in width. It fits my 2020 Macbook Air 13" perfectly.
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Reviewed in the United States on February 15, 2024
★★★★★ 5
Works and looks great.
Color: Walnut
Looks, fits and works great. Helps to keep the fan free to flow, and clears up desk space.
Once you get one of these, you’ll probably never go back.
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Reviewed in the United States on January 25, 2026
★★★★★ 5
Beautiful, Solid, and Well Made
Color: Walnut
Looks beautiful and holds my MacBook Air safely while it’s charging or resting. Going to buy another for my iPad. Heavy, well made using real wood and solid metal and is very adjustable. Outstanding product made with love and care!
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Reviewed in the United States on July 30, 2025
★★★★★ 5
Product Quality.
Color: Walnut
⭐️⭐️⭐️⭐️☆
“This stand is sturdy, stylish, and keeps my desk clutter‑free. The walnut wood and aluminum design looks premium, and the dual slots fit both my laptop and tablet securely. A bit pricier than basic stands, but worth it for the quality and organization.”
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Reviewed in the United States on November 16, 2025
★★★★★ 5
Attractive and Functional
Color: Walnut
I bought this to prop up my MacBook Pro M2 to save space on my desk while I am using a dock. The base is nicely adjustable, and holds the laptop securely. Sturdy metal base and attractive wood side pieces. My MacBook has never felt like it might tip, and I have a cat who squeezes past it to reach my office window multiple times per day. If you like the look, I'd highly recommend it for functionality.
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Reviewed in the United States on March 6, 2025