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4.0kW Heater for Master Spas

4.0kW Heater for Master Spas

SKU: X801761

Availability: In stock

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Quick Overview

The 4.0kW Heater for Master Spas is a replacement part for selected models of the Down East Spas, Clarity Spas, Contractor Series, Getaway Spas, H2X Swim Spas, Healthy Living Series, Legacy Whirlpool, Legend Series Master Spas, Michael Phelps Swim Spas and Twilight Series Spas.

Easily installable so you can get back to enjoying your heated Swim spa and hot tub in no time at all.

Product Description

The 4.0kW Heater (V/N 50143) is a replacement heater part.


  • 4kW Flow through heater element
  • Stainless steel housing
  • Approximate 2in diameter.

Master Spa Parts’ customer service representatives are here to answer your questions, provide recommendations, and help ensure you order the right part. Have a question? Reach out to us, today!

Makes & Models Product Goes With
Make Year Model
Clarity Spas 2013, 2014, 2015, 2016, 2017 CLS 360, CLS 1055, CLS 855L, CLS 855, CLS 738L, CLS 738, CLS 730L, CLS 730, CLS 524, CLS 415, Precision 8, Balance 8, Precision 7, Balance 7
Contractor Series 2010, 2011, 2012 CS 360, CS 415, CS 730, CS 730L
Down East Spas 2009, 2010 Exeter 3, Cape Cod 3, Cape Cod SE, Exeter SE, Windsor 3, Windsor SE, Portsmouth 3, Portsmouth SE, East Hampton SE, Windsor 3 STS, Windsor SE STS
Getaway Spas 2017 Bar Harbor LE, Barbor Harbor SE, Ocho Rios LE, Ocho Rios SE
H2X Swim Spas 2013 Trainer 19, Trainer 17, Trainer 18, Trainer 12, Trainer 14
Healthy Living Hot Tubs 2013, 2014, 2015, 2016 HL 8.5, HL 8, HL 7.5, HL 7, HL 620L, HL 616L
Legacy Whirlpool 2009, 2010, 2014 Inspire SE, Enterprise SE, Intrepid VS, Inspire VS, Enterprise VS, Intrepid, Inspire, Envision, Enterprise
Legend Series Master Spas 2009, 2010, 2011, 2012 LSX 800, LSX 850, LSX 700, LSX, LSX 1000, LSX 1050, LSX 800 STS, LSX 850 STS, LSX 1000 STS, LSX 1050 STS, LSX 557
Michael Phelps Swim Spas 2013 Momentum 80
Twilight Series Spas 2009, 2010, 2011, 2012, 2013, 2014 TS 67.25, TS 8.1, TS 8.3, TS 8.2, TS 7.2, TS 7.1, TS 6.2, TS 6.1, TS 240, TS 120, TS Fit, TS 8.35, TS 8.25, TS 7.25, TS 7.15, TS 67.15
Description for Use

Easily installed following accompanying instructions. Please call us at 855-308-2149 if you have any trouble with installation.

You may also want to check out the Master Spa Parts blog, which offers information on the importance of replacing spa filters regularly, as well as other general spa care tips.

Shipping & Returns

Shipping and Delivery

Free shipping is available to the Continental United States. Orders typically ship within 1-2 business days. If order happens to be backordered (which is very rare), it will ship within 5-10 business days. If you need something shipped faster, please contact us and we will do our best to accommodate.

All orders are charged at the time of order. Next-day/two-day shipping, orders must be received prior to 3:00pm CST (and will not be processed on Saturdays, Sundays or Holidays.)

Returns & Replacements

Orders must be returned unused and within 30 Days of Receipt. At time of receipt of returned order, you will receive a refund less the restocking fee.

Restocking Policy: Selecting replacement parts and filters can be difficult, so you will never be charged a re-stocking fee if you call or email to ensure you are placing the correct order. Customers are responsible for paying the shipping costs on all parts that are returned due to incorrect ordering. A 20% restocking fee will apply on a case-by-case basis.

Please fill out the return order form on the back of your original packing slip when returning parts. Parts should be returned to:

Master Spa Parts, Inc.
2140 W Wisconsin Avenue
Appleton WI 54914

International Shipments

Free shipping is not available on International Shipments (including AK and HI). Customers shipping outside the continental United States are responsible for any additional duties and taxes depending on shipment location and cost of goods.

Customer Reviews
We're currently collecting product reviews for this item. In the meantime, here are some reviews from our past customers sharing their overall shopping experience.
Out of 5.0
Overall Rating
of customers that buy
from this merchant give
them a 4 or 5-Star rating.
Verified Buyer
Everything good
Verified Buyer
Excellent heater and easy to install
Verified Buyer
Perfect fit!