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2" MBT Piranha Pump Housing 6500-546 - Bubbles Supply

2" MBT Piranha Pump Housing 6500-546

Part #: 6500-546

$82.00
In stock — ships today
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🔒 Secure checkout↩️ 30-day returns✅ 1-year warranty
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Fits these systems

Jacuzzi

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

Before you buy — quick checklist

  • Confirm your pump label reads Piranha, Theramax, or Theraflo before ordering
  • Verify your existing plumbing connections are 2" MBT — do not assume based on visual inspection alone
  • Locate the part number stamped or labeled on your existing housing and confirm it matches 6500-546
  • Inspect the impeller and seal plate for damage before reassembling — replacing the housing alone won't fix a worn impeller
  • Turn off all power to the spa at the breaker before disassembly

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

Exact part number

6500-546

Save this for ordering or warranty claims

Technical specifications

Union size
2 inch MBT (Male Buttress Thread)

Plumbing notes

  • Union size: 2 inch MBT (Male Buttress Thread)

Need help measuring? Email hello@bubblessupply.com with a photo of your existing plumbing.

Common symptoms this part fixes

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

  • Cracked or leaking pump housing
  • Water pooling under pump equipment bay
  • Low water flow or pressure loss due to housing damage
  • Visible fracture or break in volute body
  • Pump losing prime due to housing air leak

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

About this spa pump

This genuine Jacuzzi pump housing (part #6500-546) is designed for 2" MBT Piranha series pumps found in Jacuzzi spas, including Piranha, Theramax, and Theraflo models. The durable housing assembly provides the structural foundation for your pump's motor and impeller components, ensuring proper water flow and circulation throughout your spa system.

As an exact OEM replacement part, this housing guarantees a perfect fit for your Jacuzzi pump assembly. We ship same-day from our Canadian warehouse and back every part with a full 1-year warranty for complete peace of mind. Before installation, verify your existing pump's part number and 2" MBT connection size to ensure proper compatibility with your spa's plumbing configuration.

Also known as / Replaces

This part replaces or is interchangeable with:

  • 6500-546 volute

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

Install difficulty: Medium — Some experience neededTypically 45–90 minutes

Warranty

1 year 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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