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2.5HP 3-5/8" SL x 4-1/4" OD Impeller 6500-549 2.50HP - Bubbles Supply

2.5HP 3-5/8" SL x 4-1/4" OD Impeller 6500-549

Part #: 6500-549

$73.01
In stock — ships today
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About this impeller

This genuine Jacuzzi impeller delivers reliable performance for 2.5HP Piranha, Theramax, and Theraflo spa pumps. Engineered with precise 3-5/8" shaft length and 4-1/4" outer diameter specifications, this OEM replacement part (6500-549) restores your pump's original flow rates and pressure. The factory-matched design ensures optimal water circulation for your spa's filtration and jet systems.

At Bubbles Supply, we guarantee an exact fit for your Jacuzzi pump assembly, backed by our comprehensive 1-year warranty and same-day shipping on in-stock items. This impeller's robust construction handles the demanding cycles of spa operation while maintaining quiet, efficient performance. Verify your existing impeller's dimensions and shaft configuration before installation to ensure proper pump reassembly and seal alignment.

Exact part number

6500-549

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Also known as / Replaces

This part replaces or is interchangeable with:

  • 2.5HP Jacuzzi impeller
  • Jacuzzi impeller 6500-549
  • Piranha pump impeller
  • Theraflo impeller
  • Theramax impeller

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

Technical specifications

Horsepower
2.5 HP

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
  • Poor water circulation through filtration system
  • Pump runs but moves little to no water
  • Visible cavitation or air entrainment from jets
  • Impeller visibly cracked, chipped, or eroded on inspection

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

Before you buy — quick checklist

  • Confirm your pump model is a Jacuzzi Piranha, Theramax, or Theraflo before ordering
  • Measure your existing impeller — shaft length must be 3-5/8" and outer diameter must be 4-1/4"
  • Inspect the pump seal and diffuser before reassembly — replace worn seals at the same time to avoid a repeat teardown
  • Verify impeller thread direction before removal — some impellers are reverse-threaded
  • Check the volute and diffuser for cracks or wear that may have contributed to impeller damage

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

Install difficulty: Medium — Some experience neededTypically 45–90 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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