Flat Rate Shipping : $8
Free Shipping on all orders over $99

Master Spa – Heaters and Replacement Parts

As the #1 supplier of Master Spa replacement parts, we have a huge selection of original OEM Master Spa heaters and hot tub heater replacement parts, including Master Spa heaters, Master Spa heater straps, Master Spa temperature sensors, and more. Most orders ship same day, and we offer free shipping on all orders over $99 in the U.S. If you are unsure about which heater part you need for your spa, compare the first five numbers on your heater (located under the barcode) to the V/N number on our website.

If you need additional assistance, you can always call our Customer Service team at (855) 308-2149. We’re happy to help!

View as Grid List

31 Items

Page
per page
Set Descending Direction
  1. picture of tool tip icon

    The heater gasket o-ring is a replacement part for the o-rings that come with your spa and support the heater gasket so that there is a tight fit. If you don’t see your model listed, it may still work – so please give our customer service a call!

    Heater Gasket O-Ring for Master Spas
  2. picture of tool tip icon

    Heater Split Nut

    Master Spas Heater Split Nut
  3. picture of tool tip icon

    The 5.5kW 15 inch Heater with 12-inch leads M7 sensors is a replacement part for the original heater in selected models of the Clarity, Down East. Legend Series Master Spas and Freedom Spas. Easily installable so you can get back to enjoying your heated Swim spa and hot tub in no time at all. If you don’t see your model listed, it may still work – so please give our customer service a call!

    If you need/would like to try to troubleshoot your heater (before buying a new one and spending the money) we have an article called How to Troubleshoot Your Hot Tub Heater for you to review! Take a look and see if you can fix the issues you're having - for free!

    5.5k heater for spa
  4. picture of tool tip icon

    The 12-inch A&B M7 Temp/High Sensor is a replacement sensor for several Spa models including the Clarity, Down East, Contractor, Freedom, Getaway, H2X Swim Spas, Healthy Living Hot Spas, Legacy Whirlpool, Legend Series Master Spas, Michael Phelps Swim Spas and Twilight Series Spas. If you don’t see your model listed, it may still work – so please give our customer service a call!

    master spa temperature gague
  5. picture of tool tip icon

    Copper Heater Straps. These are the longer style heater straps. These are the most common heater straps. These heater straps are used to connect power from the PC board and the heater.

    copper heater straps
  6. picture of tool tip icon

    This heater is a replacement part for the original heater in your Master Spas swim spa and hot tub and hot tub models. Easy install so you can get back to enjoying your Swim spa and hot tub in no time at all.

    4.4kw heater for spa
  7. picture of tool tip icon

    This heater is a replacement part for the original heater in your Legend Series Master Spas models 1996 through 2001.Easily installable so you can get back to enjoying your heated Swim spa and hot tub in no time at all.

    5.5 kW Heater (V/N 58015)
  8. picture of tool tip icon

    The Sensor, 24” x ¼” F/560 M7 is a high limit temp replacement sensor for the MAS560 sensor found in most Down East and Legend Series Master Spas.

    Don’t let a broken sensor prevent you from your enjoying your spa when you want to.

    High temperatur sensor for MAS560
  9. picture of tool tip icon

    The 4.0kW Heater is a replacement part for selected models of the Down East. Legend Series Master Spas , H2X Swim Spas, Legacy Whirlpool and Freedom Spas. Easily installable so you can get back to enjoying your heated Swim spa and hot tub in no time at all.

    4.0 kw heater for spa
    $170.78
    Out of Stock
  10. picture of tool tip icon

    Cooper Heater Strap. This is the shorter style of the 3 we have in stock (SKU #: 300016, SKU #: 300390). Copper construction provides easily installation for connecting your spa heater to the PC Board.

    Copper Heater Strap Shorter Style
  11. picture of tool tip icon

    The 4.0kW Heater (V/N 55950) is a replacement part for selected models of the H2X Swim Spas (Momentum 80, H2X Momentum) and Michael Phelps Swim Spas (Momentum 80)

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

    4.0kw heater for spa
    Special Price $275.95 Regular Price $285.00
  12. picture of tool tip icon

    Copper Heater Straps are used for connection of the Heater Unit of your spa to the Board within the Spa pack.

    Easily installed.

    Copper Heater Straps
View as Grid List

31 Items

Page
per page
Set Descending Direction