VOLVO PENTA 3547559 Cylinder Engine Water Pump B21 2.1

( Brand: Volvo Penta ), ( Manufacturer Part Number: 3547559 ), ( Part Type: Cylinder Engine Pump ), ( Country Of Origin: United States )

Review VOLVO PENTA B21 2.1 Cylinder Engine Water Pump fits AQ125 AQ140 MARINE

The Volvo Penta 3547559 B21 2.1 AQ125 AQ140 marine engine water pump is a vital component of your boat's cooling system, ensuring optimal engine performance and longevity. This high-quality water pump is specifically designed for use with Volvo Penta B21 2.1 liter marine engines, offering a perfect fit and reliable operation.

The AQ125 and AQ140 versions of this water pump represent different impeller sizes, with AQ125 having a larger diameter impeller that delivers more flow rate compared to AQ140. The AQ125 version is suitable for boats with higher cooling demands or larger engines, while AQ140 is ideal for smaller boats or engines with lower cooling requirements.

Constructed from premium materials, this water pump features a robust cast iron housing and a high-performance impeller made of durable materials for extended service life. The pump also includes a thermostatically controlled cooling fan, which automatically engages when engine temperatures rise above a certain threshold, ensuring efficient cooling and protecting the engine from overheating.

Additionally, the Volvo Penta 3547559 B21 2.1 AQ125 AQ140 water pump features a reliable, easy-to-maintain design. It comes with a removable impeller for simple impeller replacement, as well as an easily accessible, service-friendly design that makes maintenance and inspections a breeze. This ensures that you can keep your marine engine running at peak performance, even in the most demanding conditions.

With its superior build quality, reliable operation, and ease of maintenance, the Volvo Penta 3547559 B21 2.1 AQ125 AQ140 marine engine water pump is an essential upgrade for any boat owner looking to maximize the performance, reliability, and longevity of their Volvo Penta B21 marine engine.

Volvo Penta's B21 2.1 AQ125 AQ140 marine engine water pump is a popular choice for boat owners due to its reliability and durability. Here are some pros and cons that might help you make an informed decision about purchasing this water pump.

1. High-quality construction: Volvo Penta is known for its robust and durable engines, and the same applies to its water pumps. This water pump is made of high-quality materials that can withstand the rigors of marine use.

2. Reliability: Volvo Penta water pumps have a reputation for being reliable and long-lasting. This model is no exception, with many boat owners reporting that it has served them well for years.

3. Easy install: The water pump is relatively easy to install, and there are many resources available online to help you with the process. Volvo Penta also provides installation instructions with the pump.

4. Good flow rate: The AQ125 and AQ140 models offer good flow rates, which is essential for keeping the engine cool and preventing overheating.

1. Price: Volvo Penta water pumps can be more expensive than some other brands. However, many boat owners believe that the higher price is worth it for the reliability and durability.

2. Availability of spare parts: While Volvo Penta water pumps are generally reliable, there might be occasions when spare parts are needed. Finding these parts can sometimes be a challenge, as they may not be readily available at local marine supply stores.

3. Complexity of some models: The AQ125 and AQ140 models have some complex features, which might make them more difficult to troubleshoot and repair for some boat owners.

The Volvo Penta B21 2.1 AQ125 AQ140 marine engine water pump is a high-quality and reliable option for boat owners who are looking for a durable and efficient water pump for their vessel. While it may be more expensive than some other brands, its robust construction, reliability, and ease of installation make it a worthwhile investment for many. However, boat owners should be aware that spare parts might be difficult to find in some cases, and the more complex features of some models might require some technical expertise to troubleshoot and repair.

If you are in the market for a new marine engine water pump and are looking for a reliable and durable option, the Volvo Penta B21 2.1 AQ125 AQ140 water pump is a solid choice. While it may require a larger upfront investment, the long-term benefits of its high-quality construction, reliability, and ease of installation make it a worthwhile investment for boat owners who value performance and longevity. However, boat owners should be prepared to potentially face challenges in obtaining spare parts if needed, and should ensure that they have the necessary technical expertise to troubleshoot and repair any complex issues that might arise.

Details:

Mounting hardware is only included if it shown in the pictures. Part was removed from a Volvo Penta 4 cylinder Marine engine. Condition: Good used condition. Shelf 25-13-5-C.

Thanks -Mike. Look at pictures closely and ask any questions, I try to describe parts as best can. Please look at all pictures and read entire before buying. What you see in the pictures is what get.

I will do my best to resolve the issue.

part #: 3547559 prices

• $10.00-$31.34

specifications otsterndriv:

• for models: Aq125, Aq140, Marine
• for makes: Volvo
• brand: Volvo Penta
• mpn: 3547559
• part type: Cylinder Engine Pump
• country of origin: United States

shipping otsterndriv:

• service: FedEx Ground / FedEx Home Delivery, USPS Ground Advantage, USPS Priority Mail
• transit: 3-7 Days
• cost: $21.48
• type: Calculated
• class: Standard, Expedited
• carrier: FedEx, USPS

returns otsterndriv:

• paid by: Buyer
• policy: Returns Accepted
• time: 30 Days

seller otsterndriv:

• city: Huron, Ohio
• rating: 99.5%
• # reviews: 113221

payments otsterndriv:

• credit card: Discover
• wallet: Apple-pay
• other

offer otsterndriv:

• quantity: 1
• availability: In Stock
• sold: 0
• started: November 25, 2025
• options: Ship-to-home

general otsterndriv:

• condition: Used
• Boat Parts > Sterndrive Motors Components > Other

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