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48Y Frame 2" MBT x 2" MBT Wet End 310-1890 2.00HP - Bubbles Supply

48Y Frame 2" MBT x 2" MBT Wet End 310-1890

Part #: 310-1890

$101.30
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About this wet end

This Waterway Executive 48Y frame wet end delivers reliable performance for 2.0HP spa pumps requiring 2" MBT (male buttress thread) connections on both inlet and outlet. Designed for Waterway's 48Y frame pump series, this OEM wet end maintains your spa's original flow rates and hydraulic efficiency.

Built to Waterway's exacting standards, this wet end features durable construction that handles continuous spa operation. At Bubbles Supply, we guarantee an exact fit for your pump assembly, ship same-day from our Canadian warehouse, and back every wet end with our comprehensive 1-year warranty. Verify your existing pump's frame size and connection threads before ordering – this wet end is specifically engineered for 48Y frame pumps with 2" MBT fittings.

Exact part number

310-1890

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 2HP 48Y volute assembly
  • Executive 48Y pump end
  • Waterway 48Y wet end

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

Technical specifications

Horsepower
2.0 HP
Frame size
48Y
Port type
2" MBT (Male Buttress Thread) inlet and outlet

Plumbing notes

  • Port type: 2" MBT (Male Buttress Thread) inlet and outlet

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:

  • Low or no water flow from jets
  • Pump leaking from volute or impeller housing
  • Cracked or broken pump housing
  • Impeller cavitation causing noise and reduced pressure
  • Visible water pooling under pump assembly

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

Before you buy — quick checklist

  • Confirm your existing pump is a Waterway 48Y frame — check the label on the motor for frame designation
  • Verify both inlet and outlet connections are 2" MBT — buttress threads are not compatible with standard pipe threads
  • Note your current pump's HP rating to ensure a matched wet end
  • Inspect the motor end before ordering — this is a wet end only and does not include the motor
  • Check whether your existing impeller is reusable or if a replacement impeller is also needed

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

  • Wet end housing (volute)
  • Impeller
  • Seal plate
  • Face seal / mechanical seal
  • O-ring(s)

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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