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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.

Heat exchanger with a 1000 watt capacity and 120 VAC, featuring threaded connections.
$0.00
$169.58
Grey AH Relay Socket ELX-SR3-B05 with multiple connection terminals and a compact design.
$36.35
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
Black Cooper pump harness with adjustable straps and a sturdy metal buckle.
$13.65
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
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
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
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
Two-position switch panel with labeled switches and a sleek black design.
$49.42
Interlock Switch ELX-000-051 with a compact design and multiple connection points.
$12.20
Electromechanical relay retrofit kit with mounting hardware and wiring components visible.
$94.30
A compact 12 VDC heat exchanger designed for defrosting applications.
$693.10

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