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4 HP Executive Spa Pump 1 Speed 230V 3711621-13 4.00HP 230V - Bubbles Supply

4 HP Executive Spa Pump 1 Speed 230V 3711621-13

Part #: 3711621-13

$416.89
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Fits these systems

Waterway

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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

Before you buy — quick checklist

  • Confirm your existing pump label reads 230V — this pump is not dual-voltage
  • Verify your electrical panel can supply a dedicated 230V circuit rated for 12.0A continuous draw
  • Match the 56Y frame size to your existing motor mounting footprint before ordering
  • Check your current pump's horsepower rating — do not upsize or downsize HP without confirming plumbing and breaker capacity
  • Inspect your existing union fittings and note the union diameter to ensure plumbing compatibility
  • Confirm this is a single-speed application — if your spa controller expects a two-speed pump, this unit will not be compatible

Reading the checklist now prevents 90% of returns. Worth the 60 seconds.

Exact part number

3711621-13

Save this for ordering or warranty claims

Technical specifications

Voltage
230V
Horsepower
4.0 HP
Frame size
56Y frame
Speed
Single-speed
Amperage
12.0A @ 230V

Common symptoms this part fixes

If your spa is showing any of these signs, this part is likely your fix:

  • Pump won't start or trips breaker immediately
  • Motor hums but impeller won't rotate
  • Weak jet pressure despite pump running
  • Pump cycles on and off erratically
  • Visible seal leak at motor/wet end junction
  • Spa showing DR or DRY error code (dry flow fault)

Not sure if this is your problem? Try our diagnostic centre or .

About this spa pump

The Waterway Executive 4 HP spa pump delivers reliable, high-performance circulation for larger residential spas and hot tubs. This single-speed main pump operates on 230V power with a robust 56-frame motor design, providing the strong water flow needed for effective filtration and jet operation in demanding spa applications.

Built to Waterway's exacting OEM standards, this pump ensures exact fit compatibility with your existing plumbing connections and mounting configuration. Bubbles Supply backs every Executive pump with our exact fit guarantee, same-day shipping, and comprehensive 1-year warranty for complete peace of mind. Before installation, verify your spa's electrical requirements match the 230V/12.0A specifications and confirm proper amp service at your electrical panel to ensure optimal pump performance and longevity.

Also known as / Replaces

This part replaces or is interchangeable with:

  • Waterway 4HP 1-Speed 230V Pump
  • Waterway Executive 4HP

Looking for an older part number? Check our supersession lookup tool

Install difficulty: Medium — Some experience neededTypically 60–90 minutes

What's in the box

  • Waterway Executive pump assembly (motor + wet end)
  • Union O-rings

If your order is missing any items listed above, contact hello@bubblessupply.com within 48 hours of delivery.

Warranty

1-year manufacturer warranty against defects

Covers manufacturing defects. Does not cover improper installation, normal wear, or accidental damage.

Warranty claims: warranty@bubblessupply.com

Perfect Fit Guarantee

Ordered with our help and the part doesn't fit? Contact us before installation. We'll resolve it with an exchange, replacement recommendation, or return approval.

Learn about our Perfect Fit Guarantee →

Shipping

We ship across the US and Canada. US orders ship from our US warehouse to US customers; Canadian orders ship from our Canadian warehouse to Canadian customers — no cross-border shipping, no surprise duties. In-stock orders placed before 3pm CT ship same day. Standard shipping $9.95 flat rate. Free shipping on orders over $200. Express options available at checkout.

Returns

30-day hassle-free returns on unused parts in original packaging. Contact us before returning to receive your RMA number.

Frequently asked questions

Check the Compatibility section above to confirm fitment for your spa brand and model. If your model is not listed, use our fitment selector at /pages/find-my-part or ask our parts AI for a personalized recommendation.

In-stock orders placed before 3pm CT ship the same day. You will receive tracking information by email as soon as your order ships.

We accept returns within 30 days of delivery for unused items in original packaging. Email returns@bubblessupply.com with your order number to start a return. Installed electrical parts cannot be returned for safety reasons.

Yes, all new parts come with a 1-year warranty against manufacturing defects. Warranty does not cover damage from improper installation or normal wear and tear.

AI Fitment Assistant

Tell us your spa model and we will confirm this part fits before you buy.

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