2HP 3-5/8" SL x 4-1/4" OD Impeller 6500-550

Name: 2HP 3-5/8" SL x 4-1/4" OD Impeller 6500-550
Brand: Jacuzzi
SKU: 6500-550
Price: 77.44 USD
Availability: InStock

Part #: 6500-550

$77.44

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Also replaces

6500-550

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

About this impeller

This genuine Jacuzzi 2HP impeller (part #6500-550) is designed for Jacuzzi Piranha, Theramax, and Theraflo series spa pumps. With precise 3-5/8" shaft length and 4-1/4" outer diameter specifications, this OEM replacement part ensures optimal water flow and pressure for your hot tub's circulation system. The impeller's engineered design maintains the proper hydraulic performance your Jacuzzi spa requires for effective filtration and heating.

At Bubbles Supply, we guarantee this impeller will fit your compatible Jacuzzi pump exactly as intended, backed by our 1-year warranty and same-day shipping commitment. This genuine OEM part eliminates the guesswork and potential compatibility issues that come with aftermarket alternatives. Before installation, verify your existing impeller dimensions match the 3-5/8" SL x 4-1/4" OD specifications to ensure proper fit and optimal pump performance.

Exact part number

6500-550

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

2HP spa pump impeller
6500-550
Jacuzzi impeller
Piranha impeller
Theraflo impeller
Theramax impeller

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

Technical specifications

Horsepower: 2.0 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
Pump runs but water flow is noticeably low
Loud cavitation noise from pump housing
Poor filtration or slow heat recovery due to inadequate circulation
Visible impeller damage, cracking, or worn vanes on inspection

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

Before you buy — quick checklist

Measure your existing impeller's shaft length (SL) and outer diameter (OD) — must match 3-5/8" SL x 4-1/4" OD exactly
Confirm your pump model is Jacuzzi Piranha, Theramax, or Theraflo series before ordering
Check pump nameplate for HP rating — this impeller is rated for 2HP pumps only
Inspect the pump shaft seal and wear ring while the pump is disassembled — replace if worn
Have the pump housing seal/o-ring on hand before starting the job to avoid a second shutdown

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

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.