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Aqua-Hot electrical parts featuring factory components including wiring, connectors, and other OEM parts for heating systems.

Aqua-Hot Electrical Parts | Wiring Harnesses, Relays & Controllers

OEM Electrical Parts for Aqua-Hot Heating Systems

Keep your Aqua-Hot or Hydro-Hot hydronic heating system running reliably with genuine OEM electrical components. This collection includes everything from wiring harnesses and relays to sensors, thermostats, and control boards — all designed to meet Aqua-Hot factory specifications.

Using authentic electrical parts ensures safe operation, accurate diagnostics, and long-term performance for your RV heating system. Whether you’re troubleshooting a control fault or replacing an aging harness, our components deliver the quality and compatibility you expect.

OEM Aqua-Hot electrical parts for all major heater models
⚙️ Includes wiring harnesses, control boards, thermostats, and relays
🔌 Ensures proper voltage, signal, and system communication
🚐 Perfect for RVs, coaches, and hydronic heating repairs
🧰 Tested to meet Aqua-Hot factory performance standards

Browse by model or use filters to find compatible parts for your system. Each product page includes part numbers, wiring details, and compatibility notes to make identifying replacements simple and accurate.

3-terminal old style rocker switch with green light indicator for older Aqua-Hot models
$16.95

3 Terminal Old Style Lighted Rocker Switch

For use on older aqua-hot models and has green lighted indicator window

$16.95
Propane AH Flame Sensor ELX-375-015 with metal probe and plastic connector housing
$46.67
Cozy III Heat Exchanger with dual 12V DC fans and compact dimensions of 13.125x6.5x3.625 inches.
$162.68

Cozy III Heat Exchanger - EXE-103-0EX

BTU's: 8,200 | CFM: 68 | Amps: 0.5 Width: 13.125 | Height: 3.625 | Depth: 6.5 | Barb Size: 0.75 | Fan(s): Two-12V DC Radial" Item Attributes ...

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$162.68
$3.50
A black RVC display cable with connectors on both ends for video transmission.
$350.00
$657.95
$720.83
$139.73
B-Plug Harness for Aqua-Hot system with black connectors and wiring bundle.
$68.26
Power supply harness kit with 6-foot leads for Aqua-Hot Reporter system.
$23.73

Aqua-Hot Reporter Power Supply Harness Kit w/ 6' Leads

Item Attributes 4-Length 72 In

$23.73
Three-position terminal block with screw terminals for secure wire connections.
$15.10
Grey AH Relay Socket ELX-SR3-B05 with multiple connection terminals and a compact design.
$36.35
12V Aqua Hot Silent Cozy Fan with 25mm blade diameter, model ELX-SFA-12V.
$30.73
Electromechanical 30 Amp relay with a compact design and multiple connection terminals.
$69.61
A compact 12 VDC heat exchanger designed for quiet operation.
$169.38
Buehler C20 pump harness with adjustable straps and durable black material.
$97.01
A compact 400P harness burner with adjustable flame control and durable construction.
$144.33
Buck Boost Card Replacement Kit with fan side components and connectors.
$158.63
Wiring harness for connecting Beckett and Webasto burners, model 375D.
$64.53
A Burner Controller Card ELX-375-025 with various electronic components and connectors.
$246.45
Blower fan replacement kit with various components for easy installation and repair.
$55.18
A pressure switch with a .15 WC rating, featuring a compact design and electrical connections.
$22.88
12VDC 30 AMP relay with a compact design and multiple connection terminals.
$28.92
120V 1500 watt electric heating element with metal coil and ceramic base visible
$187.00
Aqua-Hot 12-foot B-plug electrical harness with black connectors and wiring.
$83.85
A black and silver float switch with a durable design for liquid level control.
$345.80
Fluid level conductive switch with a compact rectangular design and two wire connectors.
$145.87
Four-position switch panel assembly with labeled switches and mounting hardware.
$71.62
Three position switch assembly with black lever and mounting base visible.
$63.02

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