![ARCO Marine Zeus A275L 1"-2" Single Foot Alternator w/Terminal Block [4027]](https://cdn.shopify.com/s/files/1/0469/0945/6544/files/107326XL.jpg?v=1763589230)
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
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
4.8 ★★★★★
Based on 2069 reviews
Sort
Product Reviews
★★★★★ 5
Good quality and great value
Size: 2 Count (Pack of 1)
Willow & Everett Salt and Pepper Grinder Set - Stainless Steel Manual Mills
I bought this set because my smaller pepper grinder broke. This set is very similar in style, though larger.
I really like it! The larger size is easier to handle and can store more pepper and salt inside it, meaning it needs less frequent refills. The adjustable grinder mechanisms work very well. The lids are easy to take on and off. The caddy is a little flimsy, but that wasn't why I bought the set. If you are swayed by the caddy, then you might be disappointed if it receives heavy use (like a family dinner table). But the mills and grinders themselves are good quality and a great bargain.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 30, 2024
★★★★★ 3
Simplicity wins here
Size: 2 Count (Pack of 1), Size: 2 Count (Pack of 1)
These S/P grinders are simple but I love it. I've purchased several grinders over the years. Some powered, a set using levers to grind, other manual twisters — each with cute features — that all had flaws with filling ease or the powered versions just quit working. This set is so easy to fill, adjust, and use, look, and feel great in hand, and don't break the bank with gimmicks. This set is form and function at its best.
UPDATE: So I purchased this set in Nov of 2024. As you can see, it was love. Of late, the grinders have become problematic…especially the salt grinder. The salt grinder got to where even adjust the grind size because it took all I could do to even get the adjustment screw cap to screw on.
Salt was getting trapped so I disassembled the grinder cap and cleaned it over and over. With each use, the grinder got more loose. Tonight, it finally gave up.
No. These grinders aren’t extremely expensive but, from the reviews and ratings, I’m highly surprised and disappointed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2025
★★★★★ 5
Loved it!
Model: 2 Pack Salt and Pepper Grinder, Model: 2 Pack Salt and Pepper Grinder
I loved it! The grinders look very elegant and work perfectly. The size is great, they’re easy to use, and the grinding is smooth. They also feel sturdy and good quality. Definitely recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
★★★★★ 5
Nice grinders for the price
Model: 2 Pack Salt and Pepper Grinder
The grinders are working fine, though I have only used them for a couple of days. Their size is a little smaller than I would like for in kitchen cooking, but I got them knowing they will work better in a planned move with a smaller kitchen. Good size for a table. I'm happy with the clean, simple appearance and the quality so far. Just ordered a second set for white and mixed color peppercorns and will donate the sort of hodge podge assortment of grinders I currently use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2026
★★★★★ 5
Love them
Model: 2 Pack Salt and Pepper Grinder
Love those. Good quality material and work very nicely. I like that I could set the size of the ground salt and pepper by myself, this was very useful.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
recommand products
Gran Canaria Spain Skyline - A City With A Tower And A Body Of Water - Customizable Travel Gift
24.00
Think Right, Live Well: Daily Reflections with Archbishop Fulton J. Sheen
25.00
Reclaiming Family Time: A Guide to Slowing Down and Savoring the Gift of One Another
240.00
The Prophets: Messengers of God's Mercy, Workbook
31.00
Pewter Holly and Ivy Advent Wreath with Candles 7"
42.00