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Description
ARCO Marine Zeus A225S 1"-2" Alternator w/Terminal BlockZeus 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
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).
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
4.5 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
40lb Lab Retriever Loves It!
Flavor Name: Bacon, Size: Medium
My 40lb Labrador Retriever loves her Nylabone. She DOES chew threw it and it's important to note that it IS plastic, so the product description mentions it should NOT be ingested. The bone eventually does get worn down and she does "bite, then lick" the bone, but she doesn't seem to ingest the entire bone over time and isn't interested in the small, ant-sized pieces of the bone she's carved off with her teeth.
However, over time, the bone does shrink and the edges do get very sharp, so be wary of that. It's not going to hurt anyone, but if you step on it or if it brushes you the wrong way, it could scratch you. Other than that, it's a cheap toy that lasts about a month or so for my dog–a dog that chews up most plush toys pretty quickly.
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Reviewed in the United States on March 30, 2023
★★★★★ 3
inside stick for the pup 🐶
Flavor Name: Bacon, Size: Medium
It's a SMALL nylabone that the puppy liked and chewed down somewhat. Time to throw it out and get a new one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
★★★★★ 5
Indestructible Chew for Aggressive Chewers!
Flavor Name: Bacon, Size: Medium
My pup loves her toys, and the Nylabone Power Chew Stick has lasted two months strong. The durable nylon, flavored with real bacon throughout, keeps her occupied for hours and massaging gums.
The large size suits power chewers, with a loop for tossing games. No splintering or quick wear—it's held up to daily sessions. Peace of mind for pet parents; our shoes thank you!
Pros: Extremely durable, dental benefits, engaging flavor
Cons: None—built like a tank
Would I buy again? Yes, rotating flavors for variety.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 14, 2025
★★★★★ 5
If Your Dog Can Rip The Hood Off Your Car--This Is The Dental Toy For Him/Her
I am always curious about buying the "number one best seller" that Amazon lists in any product category. And when it's an add-on item offered at a reasonable cost, I'm even more curious.
From reading the reviews, it appears that some dog owners ordered this item and were disappointed in it for a number of reasons, primarily because the 'hardness' of the toy caused dental problems. Obviously no one wants to buy a dental toy that actually causes teeth problems. However, some small breed owners must not be aware that their particular breed is subject to dental issues regardless of what toys they chew. Just off the top of my head, this type of problem often occurs with Yorkies, Chihauhaus, and Chinese Cresteds. You can use virtually any dental care method in existence and still watch your Chinese Crested's teeth fall out.
So small breeds shouldn't be given tough Nylabone toys like this Dinosaur model. If you watch any dog chew on this particular toy, you will quickly notice how small his/her teeth are in relation to the toy, and you will probably be surprised by the leverage and power he/she puts into each bite. They gnaw, they gnash, they continue to work at it until those tiny teeth lose the battle against the tough Nylabone. Comparing this to human teeth, everyone knows someone who fractures/cracks a tooth somehow. That's because our front "chicklet" teeth bite down on something hard, get broken from falling on your face, getting hit in the mouth, having teeth weakened by cavities, and from not seeing a dentist/hygienist on a regular basis--usually because we're afraid of a little pain.
We're always looking for relatively tough dental toys for our 182 pound Cane Corso named Dante. He tears apart any toy we buy him, usually in a matter of minutes. But this particular Nylabone Dura Chew has survived for months now. If you look at the size of his teeth, length and thickness, you will see a dog with the teeth and jaw muscles strong enough to tear the hood off your car--which is exactly what he did to our Prius. So if your dog is capable of ripping hoods off cars, this treat should be good for your pet monster. Just keep an eye on the toy so that you can toss it before it breaks down and is swallowed.
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Reviewed in the United States on March 10, 2015
★★★★★ 5
Best Nylabone Fido & I Agree
My dogs love these Dino Nylabone's. Over the years I have bought at least 30 of these nylabones for 3 different dogs. Two of which have loved the Dino shaped Nylabones the best. The third loves the nylabone daily dental bone the best but the dino is a close second. The T-Rex is their favorite but they like all dino shapes. Depending on the dog's chewing mood these have lasted anywhere from a month to 6 months before needing replacing. My super chewing husky will chew one up pretty quickly in about a month, my moderate chewing pit bull would take 3-4 months and my slow light chewing shiba inu would take 6 or more months. I typically have 2-3 chewable items per dog (it helps prevent toy hoarding and aggression) and these dino toys are always among the favorites.
*These are chewing style nylabones they are not supposed to be consumed quickly as a snack or treat. I consider these like a hobby or activity for my dogs to do not something they eat or a toy they play with. Chewing is a natural part of dog behavior and is good for dental hygiene. Giving your dog items they are supposed to chew on is a good way to prevent your dog from chewing on things he isn't supposed to.*
These are the white nylabone material which is a tougher material than the beige color nylabones. The white nylabones should be used for aggressive chewers. Beige nylabones are good for light chewers.
The T-Rex is about 6" by 5" the Long neck is about 3.5" by 7 inches and the Stegosaurus is about 6.5" by 4" they all seem to last about the same amount of time.
I can usually get them for $4-5 on amazon which makes them one of the best deals for a chewing nylabone which is another huge plus.
Overall My dogs and I love the Dino Nylabones and I will buy them as long as they are made. Great Product
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Reviewed in the United States on December 2, 2015
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