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05-3821-06

1HP 3-1/4" SL x 4" OD Impeller 05-3821-06

Part #: 05-3821-06

$27.27
In stock — ships today
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this impeller

This genuine Jacuzzi impeller is designed for 1HP L/LC/LTC-Series spa pumps, featuring professional-grade construction with a durable steel wear ring for extended service life. The precision-molded 3-1/4" suction eye and 4" outside diameter ensure optimal water flow and hydraulic efficiency in your spa circulation system.

As an OEM Jacuzzi replacement part, this impeller delivers the exact fit and performance your spa demands. We guarantee perfect fitment and back every purchase with our comprehensive 1-year warranty, plus same-day shipping to get your spa running quickly. When installing, always inspect the pump housing for debris and ensure the impeller spins freely before reassembling your pump.

Exact part number

05-3821-06

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Also known as / Replaces

This part replaces or is interchangeable with:

  • 1HP spa pump impeller
  • Jacuzzi L-Series impeller
  • LC-Series impeller
  • LTC-Series impeller

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

Technical specifications

Horsepower
1.0 HP

Common symptoms this part fixes

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

  • Weak or no water flow from jets
  • Pump runs but spa pressure is low
  • Impeller visibly cracked, chipped, or worn
  • Cavitation noise (rattling or grinding) from pump
  • Pump overheating due to hydraulic inefficiency
  • Visible debris damage to existing impeller

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

Before you buy — quick checklist

  • Confirm your pump is a Jacuzzi L, LC, or LTC-Series — do not rely on HP rating alone
  • Measure your existing impeller: 3-1/4" suction eye (SL) and 4" outside diameter must match exactly
  • Check the pump label for the original impeller part number before ordering
  • Inspect the pump shaft seal — if the impeller is worn, the seal often needs replacement at the same time
  • Verify the pump housing and volute are undamaged before reinstalling a new impeller

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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