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48Y Frame 1-1/2" MBT x 1-1/2" MBT Wet End 91040800-000 0.75HP - Bubbles Supply

48Y Frame 1-1/2" MBT x 1-1/2" MBT Wet End 91040800-000

Part #: 91040800-000

$205.25
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About this wet end

This Aqua-Flo by Gecko 48Y frame wet end delivers reliable performance for 3/4 HP spa pumps requiring 1-1/2" MBT connections on both suction and discharge sides. Engineered for FMCP and CMCP pump series, this OEM replacement part maintains the exact hydraulic specifications your spa system demands for optimal water circulation and filtration.

Built to Aqua-Flo's exacting standards, this wet end features the compact 48Y frame design that fits seamlessly into tight equipment spaces. At Bubbles Supply, we guarantee an exact fit with same-day shipping and back every pump component with our comprehensive 1-year warranty. When installing, ensure all plumbing connections are properly sealed and verify the wet end orientation matches your existing pump configuration before tightening the union fittings.

Exact part number

91040800-000

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 48Y wet end
  • 91040800
  • Aqua-Flo CMCP wet end
  • Aqua-Flo FMCP wet end

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

Technical specifications

Horsepower
0.75 HP
Frame size
48Y
Port type
1-1/2" MBT suction x 1-1/2" MBT discharge

Plumbing notes

  • Port type: 1-1/2" MBT suction x 1-1/2" MBT discharge

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:

  • Wet end cracked or leaking at volute
  • Seal failure causing water behind the motor
  • Low or no water flow despite motor running
  • Impeller worn or broken reducing circulation
  • Visible damage to suction or discharge ports

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

Before you buy — quick checklist

  • Confirm your existing pump is an Aqua-Flo FMCP or CMCP series — check the label on the motor
  • Verify frame size is 48Y on your current motor before ordering
  • Measure your existing plumbing connections to confirm 1-1/2" MBT on both suction and discharge sides
  • Inspect the motor itself — if the motor is failed, a wet end replacement alone will not fix the problem
  • Check whether you need just the wet end or a complete pump assembly

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

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

What's in the box

  • 48Y frame wet end assembly
  • Face seal / shaft seal
  • Impeller

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.

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