5 HP Executive Spa Pump 1 Speed 230V 3712021-1D

Name: 5 HP Executive Spa Pump 1 Speed 230V 3712021-1D
Brand: Waterway
SKU: 3712021-1D
Price: 1090.79 USD
Availability: InStock

Part #: 3712021-1D

$1090.79

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About this spa pump

This Waterway Executive 56 main spa pump delivers 5 HP of reliable power at 230V single-speed operation for larger residential and commercial spa applications. The robust 56-frame design provides the high flow rates needed for powerful jet systems and effective water circulation in demanding installations.

Built to Waterway's exacting OEM standards, this pump guarantees an exact fit replacement for your existing Executive series pump. Every unit ships same-day from our Canadian warehouse with our comprehensive 1-year warranty for complete peace of mind. The 230V configuration requires proper electrical connections—verify your spa's voltage requirements and consider professional installation for optimal performance and safety compliance.

Exact part number

3712021-1D

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Also known as / Replaces

This part replaces or is interchangeable with:

3712021-1D pump
Executive Series 5HP Pump
Waterway Executive 56 Pump

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

Technical specifications

Voltage: 230V
Horsepower: 5.0 HP
Frame size: 56Y frame
Speed: Single-speed

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 on startup
Motor hums but impeller won't spin
Weak or no water flow to jets
Pump runs but shuts off on thermal overload
Visible seal leak at wet end
DR error or flow fault on spa controller

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

Before you buy — quick checklist

Confirm your existing pump label reads 230V — do not install on a 115V circuit
Verify the horsepower rating on your current pump nameplate matches 5.0 HP
Confirm your existing pump is a 56Y frame before ordering
Measure your plumbing union sizes to ensure compatibility before disconnecting anything
Check that your spa's electrical supply can handle a 5 HP load — consult a licensed electrician if unsure
Note your current pump's discharge orientation so you can plan reinstallation

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

Hard — Technician recommendedTypically 60–120 minutes

What's in the box

Waterway Executive 56 pump assembly
Wet end with impeller installed
Motor mounted to wet end

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.

Customer reviews

AI Fitment Assistant

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