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Sundance Jacuzzi Nut 6540-443 - Bubbles Supply
Exact Fit

Sundance Jacuzzi Nut 6540-443

Part #: 6540-443

$6.06
In stock — ships today
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🔒 Secure checkout↩️ 30-day returns✅ 1-year warranty
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this hardware/other

The Sundance Jacuzzi Nut 6540-443 is a genuine OEM lighting component designed for Sundance Spas serviceable light assemblies. This essential hardware piece ensures secure mounting and proper function of your spa's lighting system, maintaining the reliable performance Sundance spas are known for.

At Bubbles Supply, we guarantee this nut provides an exact fit for your Sundance lighting assembly, backed by our comprehensive 1-year warranty. Our same-day shipping ensures you get your spa lighting back to full operation quickly. As Canada's spa parts authority, we stock only genuine OEM components that meet Sundance's exacting specifications. Verify your existing part number matches 6540-443 before ordering to ensure proper fitment with your serviceable light assembly.

Exact part number

6540-443

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • Light assembly nut
  • lighting retaining nut
  • spa light mounting nut

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

Fits these brands and models

Compatible brands

Sundance SpasJacuzzi
Not sure if it fits your spa? Send us a photo — we'll confirm before you order

Common symptoms this part fixes

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

  • Light assembly won't stay seated or keeps backing out
  • Light lens rattles or shifts during jet operation
  • Water intrusion into light housing due to loose retaining hardware
  • Light assembly spins freely instead of holding position

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

Before you buy — quick checklist

  • Confirm your existing part number matches 6540-443 exactly — do not substitute based on appearance alone
  • Verify this nut is part of a serviceable light assembly, not a sealed/non-serviceable unit
  • Inspect the mating threads on your light housing for damage before ordering — a stripped housing won't be fixed by a new nut
  • Check whether your light assembly requires additional O-rings or gaskets that may need replacement at the same time

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

Install difficulty: Easy — DIY-friendlyTypically 15-30 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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