PDR Titanium Heater After Market, 4kW

Sku: 73791-AM
(2 customer reviews)
$500.00

This AFTER MARKET 4kW PDR Titanium Heater is the current replacement for all 2003-2009 4kW No Fault Heaters and comes with both a high limit and control thermistor. If you’re replacing a 76228 Titanium Heater (pressure switch version) you’ll need to add a pressure switch bypass jumper.

This part can be found on many Hot Spring, Limelight, Tiger River models from 1994 to 2025

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SKU: 73791-AM Categories: , Tags: ,

Description

What’s included: PDR heater, control and hi limit thermistor, thermistor adapters, wire clips, 1/4″ barbed adapter, & small section of 1/4″ tubing for bleed line.

This AFTER MARKET 4kW PDR Titanium Heater is the current replacement for all 2003-2009 4kW No-Fault Heaters. If you’re replacing a 76228 Titanium Heater (pressure switch version) you’ll need to add a pressure switch bypass jumper 72768. For the 6kW (6000 watt) version, please see the 73790.

What is the difference between the OEM and the After Market PDR heaters?
There is no technical difference between the OEM and the after-market PDR heaters. Both heaters have a 12-month warranty. The only non-technical difference is price and the OEM heater does not come with the high limit and control thermistors.

Reference: 26-C3160-2S

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2 reviews for PDR Titanium Heater After Market, 4kW

Quality

100 %

Price

100 %

Service

100 %

Reviewed by 01 customer(s)

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  • Paul

    Great support and just the product I needed

    . Was able to self service and get my Hot Spring spa up and running without a costly service visit. Thanks for the info and great videos backyardplus!

    March 10, 2025
    Verified Review

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  • Anonymous

    Works great

    A great replacement for the OEM and less likely to leak now that the pressure switch is contained.

    March 10, 2025
    Verified Review

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Quality
Price
Service

Ref. Diagram
# 1 PDR Heater (Hot Spring 2017 - 2019) Shop by Diagram
# 2 No Fault Heater (Hot Spring 2007 - 2018) Shop by Diagram
# 2 No Fault 5500 Cartridge Heater 1995-1996 (Hot Spring 1995 - 1996) Shop by Diagram
# 2 No Fault Heater 1997-2002 (Hot Spring 1997 - 2002) Shop by Diagram
Heater Factory Install (1994) (Hot Spring 1994 - 1994) Shop by Diagram
brand model years
Hot Spring Aria NXT (ARN) 2022
Limelight Flair (FLR) 2022, 2023, 2024
Limelight Flash (FSH) 2022
Hot Spring Grandee (GG) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
Hot Spring Grandee NXT (GGN) 2022, 2023
Hot Spring Envoy (KK) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
Hot Spring Envoy NXT (KKN) 2022, 2023, 2024
Limelight Pulse (PLS) 2022
Limelight Prism (PSM) 2022
Hot Spring Vista (SS) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
Hot Spring Triumph (TRHN) 2019
Hot Spring Vanguard (VV) 2014, 2015, 2016, 2017, 2018
Hot Spring Vanguard NXT (VVN) 2022
Hot Spring Aria (AR) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
Hot Spring Classic (F) 1994
Hot Spring Classic 230v. (FH) 1994
Hot Spring Prodigy (H) 1994
Tiger River Caspian (CHP) 2004, 2005, 2006, 2007, 2008, 2009, 2010
Tiger River Siberian (L) 2003, 2004
Limelight Gleam (GLM) 2013, 2014, 2015, 2016, 2017
Limelight Glow (GLW) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
Hot Spring Aria (AR) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
Hot Spring Grandee (GG) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
Hot Spring Envoy (KK) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
Hot Spring Vista (SS) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
Tiger River Caspian (CHP) 2005, 2006, 2007, 2008, 2009, 2010
Limelight Beam II (BMII) 2018
Limelight Flair (FLR) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
Limelight Flash (FSH) 2018
Limelight Gleam (GLM) 2013, 2014, 2015, 2016, 2017
Limelight Glow (GLW) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
Limelight Pulse (PLS) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
Limelight Prism (PSM) 2018
Hot Spring Classic 230v. (FH) 1995, 1996
Hot Spring Grandee (G) 1995, 1996
Hot Spring Grandee (GQ) 1996
Hot Spring Sovereign 230v. (IH) 1995, 1996
Hot Spring Sovereign 230v. (IHQ) 1996
Hot Spring Highlife (K) 1995, 1996
Hot Spring Summit (R) 1995, 1996
Hot Spring Landmark (S) 1995, 1996
Tiger River Khyber (L) 1995, 1996
Tiger River Manora 230v. (MH) 1995, 1996
Tiger River Tondi Round 230v. (PH) 1995, 1996
Hot Spring Grandee (G) 1997, 1998, 1999, 2000, 2001, 2002
Hot Spring Grandee (GQ) 1997, 1998, 1999, 2000, 2001, 2002
Hot Spring Landmark (S) 1997, 1998, 1999, 2000, 2001, 2002
Hot Spring Landmark (SQ) 1997, 1998, 1999, 2000, 2001, 2002
Tiger River Caspian (CHP) 2005
Tiger River Siberian (L) 2003, 2004
Hot Spring Highlife (K) 1994

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