EX2 56Y 3.0HP 220V 2SPD SD Waterway Spa Pump, 2.0 inch, 3721621-1W

In stock
In stock

Waterway EX2 High Performance Spa Pump, 3.0 Horse Power (HP), 220V, 2-Speed, 60Hz, 56-Frame. OEM part number 3721621-1W.

NOTE: The pump photo shown to the right only shows one capacitor mounted on top of the motor. We cannot guarantee if the motor that is shipped will have 1 or Dual Capacitor attached to the outside of the motor housing, and at a specific location due to different motor models that are supplied. Make sure there is plenty of room where the spa pump is located for a motor that may have a single of dual motor capacitor on the outside of the motor housing.

SpaGuts P/N: 15-350-1656


  • Rated 3.0HP, 230V, 12.0/4.4A (*Amp Rating Varies by Motor)
  • 56-Frame Motor (Approximately 6.5" wide)
  • Dual Speed Pump (Low/High. Can also be wired for single speed)
  • 2.0 inch center suction, and 2.0 inch side discharge (Outside thread measures approximately 3.1 inch)
  • cULRus certifications
  • Equipped with the highest quality Viton Pump Seal
  • Equipped with the high efficiency electrical motor and highperformance pump wet end
  • Includes a 1-Year limited warranty

*NOTE: Amp rating and dimensions may vary depending on the motor brand and model that is used with this pump. Motor brand can be US Motors, AO Smith Century Laser, GE, Etc... Please contact us to verify dimensions if space is very limited for the new pump.

This is a Side Discharge Pump with 2.0-inch fittings. Outside thread to outside thread measurement on the pump fittings is approximately 3.0 inches. (Pump Unions sold separately)

Dimensions (Varies by Motor Model): 17.0 inches long, 7.75 inches high, 9.75 inches wide.

Motor part numbers that are normally used for this pump: K63MWEWS-4843, R63MWENA-4727, 93576375, 5KCP49TN9099X (Single Speed), R63MWDMA-175, R63MWENA-4727

Also known as pump model PF-30-2N22M6.

The pump image shows the pump discharge on top pointing to the 12 o'clock position. The pump discharge can also be rotated every 90-degrees (3, 6 or 9 o'clock positions) by loosening the four long bolts at the back of the motor. The pump intake (suction) is located in the front center face of the pump.

This pump is also the replacement option for the following spa pump part numbers: 1-00-0145, 078306-1340, 1-00-0146, 07826787-2041, 1-00-0153, 07827778-2341, 05834005-2, 05334001-2, 05330002-2, 07827743-2, 05830685-2, 05834014-2, 05330883-2, 05230366-2, 07827343-2, 07127783-2, 07827778-2341, 07826787-2041, 07830306-2, 07830332-2, 05330883-1, 7827774-2, 05834006-2, 07830001-1, 07327783-2, PUM22000558, 05825015-7 (2.5HP), WUA400 and WUA400-II (LX Pump, Verify Amp Rating and Motor Frame Size), SPR1900, 05834030-5 (3HP, Single Speed), 07726008-5, 05834009-2, 05834021-2 (5.0 SPL), 05825489-2, 5KCP49UN9096X (Motor Only; Verify Pump Wetend to match), 05334000-5, 07830000-2, 05825685-2, PRC9089X, 3721623-1W8C (Waterway EX2, Morgan Spa), 05825001-2, TheraMax II (05225427-2, 6500-902, 11.3A), 05325004-5, 06625787-2, 05334026-2, 1431601-03 rev A (Watkins), 05334012-2040

This EX2 Pump is also the replacement option for the "Relia-Flo" pumps by Caldera Spas. Verify motor amp rating and voltage, the pump discharge type and size fitting to match. Note that the new motor will not have the cover with heat vent connection. The original motor cover with heat vent connection may be used on the new motor if it fits, otherwise retrofitting a heat vent is required.

This item comes with a one year manufacturer's limited warranty.


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