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12_059606ad-71cb-42ca-9d85-e1a305d2250a - Northline Parts

4 HP 230V 2-Speed Executive 56 Frame Spa Pump Black Side Discharge 3721621-13

Alligator_819_x_200_px - Northline Parts

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$419.99
Sale price  $419.99 Regular price 

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I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

4 HP 230V 2-Speed Executive 56 Frame Spa Pump - Black Side Discharge (Aftermarket)

Enhance your spa experience with this powerful 4 HP 230V 2-Speed Executive 56 Frame Spa Pump. Engineered for high performance and efficiency, this aftermarket pump provides reliable water circulation and jet pressure for your hot tub. Designed with a black side discharge configuration, it serves as a robust solution for maintaining your spa's filtration and massage functions. Please note that this is a premium aftermarket replacement part, not an OEM component, designed to meet or exceed standard operating requirements.

Key Features & Benefits

  • High-performance 4 HP motor ensures optimal water flow and jet pressure.
  • Dual-speed versatility offers a high speed for massage and a low speed for energy-efficient filtration.
  • Durable 56-frame motor design provides improved cooling and a longer service life.
  • Side discharge orientation allows for easy integration into standard plumbing setups.
  • Cost-effective aftermarket alternative without compromising on quality or performance.

Compatible Models

  • Part Number: 3721621-13
  • Executive 56 Frame Series
  • Fits various hot tub and spa brands requiring a 230V side discharge pump.

Product Specifications

  • Horsepower: 4 HP
  • Voltage: 230V
  • Speeds: 2-Speed
  • Frame Size: 56 Frame
  • Discharge Type: Side Discharge
  • Color: Black

Frequently Asked Questions

Is this an OEM part?
No, this is a premium aftermarket part and is not manufactured by the original equipment manufacturer. It is designed to function as a high-quality replacement for the original pump.

How do I confirm compatibility?
To ensure a proper fit, please verify that your current pump matches the 56-frame size, 230V electrical requirement, side discharge orientation, and part number 3721621-13. Check your motor label for these specific details before ordering.


Important: This is a premium aftermarket part and is not manufactured by the original equipment manufacturer (OEM). Brand names and model numbers are used for reference purposes only. Compatibility may vary depending on the machine's serial number. Please verify fitment before purchase.

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Service was professional and easy to work with. They kept me updated on my order and recommended a different part when the one I originally picked wasn’t going to work. Everything showed up as expected and the process was smooth overall.

- Customer, Chris D.

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