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5HP 1-1/4" SL x 4-1/2" OD Impeller 310-4180 5.00HP - Bubbles Supply

5HP 1-1/4" SL x 4-1/2" OD Impeller 310-4180

Part #: 310-4180

$60.36
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About this impeller

This 5HP impeller is a genuine Waterway OEM replacement designed for Executive series spa pumps with 48 and 56 frame configurations. Built to Waterway's exacting standards, this high-performance impeller features a 1-1/4" suction line connection and 4-1/2" outside diameter, delivering the powerful water flow your spa demands for optimal circulation and jet performance.

At Bubbles Supply, we guarantee this impeller will fit your Waterway Executive pump exactly as intended. Every order ships same-day from our Canadian warehouse and includes our comprehensive 1-year warranty for complete peace of mind. When replacing your impeller, always inspect the pump housing and seal for wear, and ensure the shaft key is properly seated before reassembly to prevent premature failure.

Exact part number

310-4180

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 310-4180 impeller
  • 48/56 frame 5HP impeller
  • Waterway Executive 5HP impeller

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

Technical specifications

Horsepower
5.0 HP
Frame size
48 frame, 56Y frame

Common symptoms this part fixes

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

  • Weak or reduced jet pressure
  • Pump runs but water flow is noticeably low
  • Impeller visually cracked, chipped, or worn
  • Cavitation noise coming from pump housing
  • Pump struggles to prime or loses prime frequently

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

Before you buy — quick checklist

  • Confirm your pump is a Waterway Executive series — check the label on the pump housing
  • Verify the frame size is 48 or 56Y before ordering
  • Match the 1-1/4" suction line inlet size to your existing impeller
  • Confirm the outside diameter of your current impeller is 4-1/2"
  • Inspect the mechanical seal and shaft seal before reassembly — replace if worn
  • Check the shaft key and keyway for damage before installing the new impeller

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

Install difficulty: Hard — Technician recommendedTypically 60-90 minutes

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.

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