GPB-1

The Groco GPB-1 priming gear pump is a reliable and efficient solution for transferring water or other liquids in various applications. This model comes as a pack of twelve pumps, making it an ideal choice for larger projects or installations that require multiple pumps.

Each pump features a robust design with a cast iron housing, ensuring durability and longevity. The GPB-1 is a positive displacement pump, which means it delivers a consistent flow rate regardless of the pressure changes. Its priming gear design ensures efficient priming and reduces the need for constant manual priming, making the pumping process more convenient and time-saving.

The pump has a maximum flow rate of 12 GPM (Gallons Per Minute) and a maximum head pressure of 15 feet. It comes with a 1-1/4 inch NPT (National Pipe Thread) inlet and outlet, allowing for easy connection to various piping systems. The pump also includes a 115V, 60Hz, single-phase motor with a 1.5 horsepower rating, providing ample power for most applications.

The GPB-1 pump is designed for easy maintenance. Its top suction design makes it easy to access the impeller for cleaning or replacement. Additionally, the pump includes a large see-through oil reservoir, which allows for easy oil level monitoring and maintenance.

These pumps are suitable for various applications, including water transfer, irrigation, and industrial processes. They can be used in a wide range of temperatures, making them versatile for various environments. The Groco GPB-1 priming gear pump is a dependable and cost-effective solution for your priming pump needs. With its robust construction, efficient design, and ease of maintenance, this pack of twelve pumps is an excellent investment for your project.

1. Reliable Performance: The Groco GPB-1 pump is known for its reliable performance in marine environments. It is designed to handle the rigors of continuous operation in harsh conditions.

2. Self-Priming: This pump is self-priming, which means it can operate even when the water level in the suction pipe drops. This feature is particularly useful in marine applications where water levels can fluctuate.

3. High Flow Rate: The pump has a high flow rate, which is essential for supplying sufficient water to marine systems such as cooling systems, heads, and washdown systems.

4. Robust Design: The pump is made of heavy-duty materials, including cast iron and stainless steel, which make it durable and resistant to corrosion.

5. Easy Installation: The pump is relatively easy to install, and it can be mounted horizontally or vertically. It also comes with a built-in strainer basket, which helps prevent debris from entering the pump.

1. Cost: The Groco GPB-1 pump is more expensive than some other pumps on the market. Buying 12 units can be a significant investment.

2. Weight: The pump is relatively heavy, weighing around 18 pounds each. This can make transportation and installation more challenging.

3. Maintenance: Like any mechanical device, the pump requires regular maintenance to ensure optimal performance. This includes periodic inspection, cleaning, and lubrication.

4. Noise: The pump can be relatively loud, particularly when operating at high flow rates. This may be a concern for some users, especially those in residential marinas.

The Groco GPB-1 priming gear pump is a high-quality, reliable, and efficient water pump that is well-suited for marine applications. It offers several advantages such as self-priming, high flow rate, and robust design. However, it also comes with some disadvantages, including cost, weight, maintenance requirements, and noise.

If you are in the market for a water pump for a marine application and are willing to invest in a reliable and efficient pump, then the Groco GPB-1 priming gear pump is an excellent choice. Its self-priming feature and high flow rate make it a popular choice among mariners. However, if cost is a significant concern, you may want to consider alternative options that offer similar performance but at a lower price point. Alternatively, if noise is a major concern, you may want to explore quieter pump models. Ultimately, the decision depends on your specific requirements and budget.

Details:

No box Groco self-priming gear pump model GPB-1 12v, purchased new and left on the boat never installed.

specifications inboardfuel:

• brand: Groco
• mpn: Gpb-1
• part type: Gear Pump

seller inboardfuel:

• # reviews: 2479
• city: rising sun, maryland
• rating: 100.0%

offer inboardfuel:

• availability: in stock
• started: august 18, 2025
• options: ship-to-home
• best offers: true
• prices: $399.95–$685.37
• item condition: New
• sold #: 13
• in stock #: 5

payments inboardfuel:

• credit card: visa
• wallet: google-pay
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general inboardfuel:

• category: Boat Parts > Inboard Engines Components > Intake Fuel Systems

shipping inboardfuel:

• carrier: usps, ups, fedex
• transit: 4-10 days
• service: usps ground advantage, ups ground, fedex ground / fedex home delivery
• type: calculated
• class: standard

returns inboardfuel:

• policy: no returns