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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.

$169.58
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
Compact 12 VDC motor with a sleek design and visible wiring connections.
$202.00
Brass fluid level switch with connectors, model ELE-800-002, cylindrical shape.
$375.99
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
Black Cooper pump harness with adjustable straps and a sturdy metal buckle.
$13.65
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
Automotive 40A SPDT relay with harness and mount for controlling pumps and fans
$23.22

Automotive Relay 40A SPDT ELX-375-040

Relay, Automotive 40A SPDT with Harness & Mount Used for controlling up to 40A pumps, fans & zones Used for reversing zone polarity for n...

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$23.22
Back pressure switch with a pressure rating of 376 WC and model ELX-375-035.
$34.62
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
16 position terminal strip plug with two retaining screws for secure connection.
$11.88

16 Position PC Board Terminal Strip Plug ELX-312-116

This is the new style plug, that includes 2 retaining plug screws that secure plug to the board.

$11.88
A 240 VAC, 4500 watt heating element with metal casing and electrical connections.
$51.50

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