fits make: Mercury.

( Manufacturer Part Number: 48-857028-21 ), ( Part Type: Counter Prop )
The 48-857028-21 Rotating Mercury 21p Counter (Rev4) and its accompanying counterpart, the 48-857029-21, are sophisticated and reliable counting devices designed for various applications. These rotating mercury counters are engineered with precision and durability in mind, ensuring they provide accurate and long-lasting use.
The 48-857028-21 Rotating Mercury 21p Counter (Rev4) features a rotating mercury disc with 21 counting positions, which is driven by an electromagnet. This counter is capable of counting up to 21 consecutive events or measurements without requiring a manual reset. The Rev4 version of this counter boasts improved performance and reliability over previous models, making it an excellent choice for users seeking a dependable and accurate counting solution.
The 48-857029-21 counter shares many similarities with its companion, the 48-857028-21. However, it offers an additional counting position, enabling it to count up to 22 consecutive events. This counter is perfect for applications that require slightly more than 21 counts, without the need for a more complex or expensive counting solution.
Both the 48-857028-21 and 48-857029-21 counters are designed with a rugged, weather-resistant enclosure, which ensures they can withstand harsh environments. They also feature easy-to-read display windows, allowing users to quickly and easily monitor their counts without the need for complex interfaces.
In summary, the 48-857028-21 Rotating Mercury 21p Counter (Rev4) and its companion, the 48-857029-21, are robust and reliable counting devices that offer accurate and dependable performance. Their rotating mercury discs and simple, user-friendly designs make them an excellent choice for a wide range of applications, from industrial processes to scientific experiments.
Pros of buying a 48-857028-21 Rotating Mercury 21p Counter Prop:1. Durability: This propeller is made of high-quality materials, ensuring it can withstand harsh marine conditions and provide long-lasting performance.
2. Versatility: The propeller is suitable for various types of boats, making it a versatile option for boat owners.
3. Improved Efficiency: The rotating mercury 21p counter prop design provides better thrust and efficiency, improving your boat's speed and fuel efficiency.
4. Easy Installation: The propeller comes with mounting hardware, making the installation process straightforward and quick.
Cons of buying a 48-857028-21 Rotating Mercury 21p Counter Prop:1. Price: Compared to other propellers, this one may be more expensive. However, its quality and performance may justify the increased cost.
2. Limited Compatibility: While the propeller is versatile, it may not be suitable for all boat types, so it's essential to confirm compatibility before purchasing.
Ending Conclusion:The 48-857028-21 Rotating Mercury 21p Counter Prop is a high-quality product that offers improved efficiency and durability. Its price may be higher than some alternatives, but the propeller's performance and longevity may make it a worthwhile investment for boat owners. If you have a compatible boat and are looking for a reliable and efficient propeller, this could be a great option for you.
Recommendation:Before purchasing, I recommend checking the product's compatibility with your boat and researching alternative options to ensure you're getting the best value for your money. If the 48-857028-21 Rotating Mercury 21p Counter Prop is a good fit for your boat, its durability and performance can make it a wise investment in your boating experience.
Hubs not included. These props are in great condition with no dings and have never had any work done on them. I will only ship to the lower 48 and will most likely need to ship in two separate boxes so I have set the shipping price at I used them on two trips and they were stored on my boat as a set of spares. Part numbers 48 857028a46 21p standard rotating 48 857029a46 21p counter rotating.
I have a set of Mercury REV4 21p standard counter rotating pair of props for sale.