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  3. SIERRAMARINE 18-3599-2

18-3599-2 SIERRAMARINE Water Pump

18-3599-2 SIERRAMARINE Water Pump
Product Aspects
BrandSIERRAMARINE
Manufacturer Part Number18-3599-2
Recommended UseGM V-6 AND SMALL BLOCK V-8 ENGINES
TypeMECHANICAL
Pump LengthSHORT
Pump FlowSTANDARD
RotationBI-DIRECTIONAL
FinishPOWDER COATED
ColorBLACK
MaterialIRON
UPC808282374822

Review SIERRAMARINE Water Pump

Introducing the Sierra Marine 18-3599-2 Water Pump, a high-performance addition to your marine engine system. This water pump is engineered to deliver reliable, efficient water cooling for your marine engine, ensuring optimal engine performance and longevity.

The Sierra Marine 18-3599-2 Water Pump boasts a robust design with a one-piece impeller housing, which minimizes leaks and reduces the potential for corrosion. The impeller itself is made of high-quality, thermoplastic material, providing superior strength and durability. The pump's shaft is made of stainless steel, ensuring resistance to corrosion and saltwater damage.

This water pump features a 1.75-inch (44.45 mm) inlet and outlet size, making it suitable for use with marine engines of various sizes. The pump is designed to operate at a maximum pressure of 12 psi (0.83 bar) and a maximum temperature of 250 F (121 C), ensuring effective cooling even under heavy load conditions.

The Sierra Marine 18-3599-2 Water Pump comes with a pre-lubricated, sealed bearings system, which eliminates the need for regular maintenance and reduces the risk of water entering the bearings. The pump also includes a built-in thermostat, which helps regulate water temperature and protects the engine from overheating.

This water pump is easy to install, with a bolt-on design that allows for quick and straightforward installation. The pump includes all necessary mounting hardware, making installation a breeze. Additionally, the pump's design allows for easy access to the impeller for cleaning or replacement.

In conclusion, the Sierra Marine 18-3599-2 Water Pump is an essential upgrade for any marine engine, offering superior cooling performance, durability, and ease of installation. Its robust design, high-quality materials, and built-in features make it an ideal choice for boat owners who demand the best from their marine engine systems.

The Sierra Marine 18-3599-2 water pump is a popular choice for marine applications due to its durability, reliability, and high flow rate. However, like any product, it has its pros and cons.

Pros:

1. High Flow Rate: The Sierra Marine 18-3599-2 water pump can deliver up to 3,500 GPH (Gallons Per Hour), making it ideal for applications that require a high volume of water, such as livewells, washdown systems, and air conditioning units.

2. Durable Design: The pump housing is made of cast iron, which is known for its strength and resistance to corrosion. The impeller and volute are made of stainless steel, which is also corrosion-resistant and can withstand the harsh marine environment.

3. Self-Priming: The pump is self-priming, which means it can draw water from below the waterline without the need for an external priming system.

4. Easy Installation: The pump comes with a pre-assembled shaft seal and a mounting plate, which makes installation easier and quicker.

5. Versatile: The 18-3599-2 water pump can be used for both freshwater and saltwater applications, making it a versatile option for boat owners.

Cons:

1. Size and Weight: The pump is relatively large and heavy compared to some other models, which can make it more difficult to install in smaller boats or tight spaces.

2. Price: The Sierra Marine 18-3599-2 water pump is more expensive than some other models, which may be a drawback for budget-conscious boat owners.

3. Noise Level: Some users have reported that the pump can be quite noisy, especially when running at high speeds.

4. Requires Regular Maintenance: Like any water pump, the 18-3599-2 requires regular maintenance to ensure optimal performance and longevity. This includes checking the impeller for wear, cleaning the housing, and replacing the shaft seal periodically.

Conclusion:

The Sierra Marine 18-3599-2 water pump offers several advantages for marine applications, including a high flow rate, durable design, self-priming capability, and easy installation. However, it also has some drawbacks, such as size and weight, price, noise level, and the requirement for regular maintenance.

Recommendation:

If you require a high volume of water for your marine application and are willing to invest in a reliable and durable pump, the Sierra Marine 18-3599-2 water pump is an excellent choice. However, if you are on a tight budget or have limited space, there may be other, more affordable and compact options available that may better suit your needs. It's always a good idea to consult with a marine professional or the manufacturer's representative to help you make an informed decision based on your specific application requirements.

Details:

Product is great for use in all marine applications. This requirement only applies to fitment-specific parts; if the item is unrelated vehicle fitment or considered a universal fit, this step can be disregarded. To ensure compatibility, please verify that the item fits your vehicle. About product limited 2 year warranty.

If a defect is identified after this period, it will fall under the manufacturers warranty and should be handled directly with them. Pump length : short. Pump flow: standard. Provides maximum durability and long life.

specifications engineblocksam:

  • brand: Sierramarine
  • mpn: 18-3599-2
  • recommended use: Gm V-6 And Small Block V-8 Engines
  • type: Mechanical
  • pump length: Short
  • pump flow: Standard
  • rotation: Bi-directional
  • finish: Powder Coated
  • color: Black
  • material: Iron
  • upc: 808282374822

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  • started: february 7, 2026
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rating: 97.7% out of 100 based on 122 user ratings.
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