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Aqua-Hot Parts | OEM Replacement Components & Repair Kits

Aqua-Hot Parts | OEM Replacement Components & Repair Kits

Genuine Aqua-Hot Parts for Reliable Hydronic Heating

Keep your Aqua-Hot system performing like new with our full selection of OEM Aqua-Hot parts and accessories. Each component is engineered to fit perfectly, ensuring consistent heat, efficient operation, and long-term reliability.

Whether you’re performing annual maintenance, troubleshooting a heating issue, or rebuilding your entire system, you’ll find every part you need — from filters and nozzles to pumps, thermostats, sensors, and circuit boards.

✅ Genuine OEM Aqua-Hot replacement parts
🔧 Compatible with Aqua-Hot & Hydro-Hot systems
🔥 Maintain peak heating and hot water performance
🧰 Ideal for RVs, coaches, and hydronic service centers

Use the filters to quickly locate the right part for your specific model. Each product page includes part numbers, compatibility notes, and installation details to help you complete your repair confidently.

For annual maintenance, explore our Aqua-Hot Service Kits and Cost-Saving Bundles — curated for convenience and long-term system protection.

Garber General Fuel Filter with a cylindrical design and metal housing.
$29.99

Garber General Fuel Filter - FLE-120-100

$29.99
Fleetguard Fuel / Water Separator Filter (RACOR FLX-R12-TRA
$59.99

Fleetguard Fuel / Water Separator Filter (RACOR FLX-R12-TRA

$59.99
CONS Nylatch Plunger model HDX-100-200 with black plastic body and metal pin.
$1.38

CONS Nylatch Plunger - HDX-100-200

$1.38
$401.37

Valve, Tempering, 120°F to 160°F, AH

$401.37
$187.92

Pump, HVCC S1

$187.92
$5.25

Valve, Air Combination Coin / Key DO NOT BUY

$5.25
Bosch Assist Pump kit with various components for efficient fluid transfer.
$357.38

Kit, Bosch Assist Pump

$357.38
Fuel kit with JIC male fitting, nut, and ring components displayed on a white background.
$75.07

Fuel Kit, JIC Male w/Nut & Ring Complete

$75.07
Tan metal grille measuring 10 inches by 2 inches with a sleek design.
$4.79

Cozy Grille, 10 in. x 2 in TAN, METAL EXX-950-411

$4.79
Black plastic grille measuring 3.5 by 15 inches with a simple rectangular design
$21.62

Cozy Grille 3.5 inches x 15 inches Black Plastic

$21.62
$50.80

Water Heater Insulation Blanket Kit

$50.80
Blower wheel fan motor with metal housing and central mounting shaft visible.
$10.36

Blower Wheel Fan Motor HDX-162-511

$10.36
Three-quarter inch preformed hose bent at a 90-degree angle.
$25.00

80414 Hose 3/4 Preformed, 90 degrees

$25.00
Preformed 3/4 inch hose bent at 90 degrees, 18 1/2 inches long
$25.00

80413 Hose 3/4 Preformed 90 degrees 18 1/2" Length

$25.00
$3.10

Insert Modified Brass Fitting

$3.10
Constant tension hose clamp with a 1/2 inch diameter and metal construction
$1.00

Constant Tension Hose Clamp 1/2 inch CTB-12

$1.00
A 5/8 inch polytube bend support with a sturdy design for flexible tubing applications.
$11.30

5/8 IN Polytube Bend Support

$11.30
A metal air assembly combination valve with multiple connection points and a compact design.
$19.58

Air Assembly Combination Valve

$19.58
Metal tempering valve with temperature range markings from 120 to 160 degrees Fahrenheit
$198.33

120F-160F Tempering Valve

$198.33
Brass check valve with a threaded connection and a compact design for fluid control.
$79.99

Brass Check Valve PLX-2A1-300

$79.99
Pump bracket isolator PLX-100-837 in black rubber with metal mounting plate and bolt holes
$4.99

Pump Bracket Isolator PLX-100-837

$4.99
Metal pump bracket with mounting holes, designed for Buehler C21 model.
$14.99

Buehler C21 Pump Bracket PLX-100-836

$14.99
5-quart expansion tank assembly with a durable design and connection fittings.
$101.58

5 Qt. Expansion Tank Assembly PLE-622-902

$101.58
5 quart expansion tank with 5/16 inch barb fitting in white plastic material
$145.80

5 Qt. Expansion Tank 5/16 inch Barb Fitting

$145.80
Metal engine pump supply pipe with curved design and mounting flange
$0.00

Engine Pump Supply Pipe

$0.00
A 3-quart overflow bottle with a decal and a 5/8 inch barb fitting.
$97.62

3 Qt. Overflow Bottle w/ Decal, 5/8 inch Barb fitting

$97.62
3 quart expansion tank with 5/16 inch tubing for Aqua-Hot heating models
$94.26

3 Qt. Expansion Tank & 5/16 inch Tubing

For use in Aqua-Hot Models 5/16 tubing HH 08e, 08m, 09e, 09m, 450-DE1, DM1

$94.26
3 Qt. expansion tank with internal fluid lever sensor and 5/8 inch barbs.
$109.99

3 Qt. Expansion Tank w/ Internal Fluid Lever Sensor, 5/8 inch Barbs PLE-063-200

$109.99
$0.00

AH 450-DE5 WITH REPORTER, HEAT EXCHANGERS, SUPPLIES

$0.00
Small filler neck with a sturdy design for secure fluid transfer in various applications.
$59.99

Small Filler Neck TNX-NEC-FLL

$59.99
Block of refractory insulation material with a rough, porous surface and light gray color
$73.85

Refractory Insulation

$73.85
White label for a 5-quart expansion tank with clear black text.
$8.50

5 Qt. Expansion Tank Label

$8.50
3-quart expansion tank with a clear label on the side in white and red colors
$3.50

3 Qt. Expansion Tank Label

$3.50
$60.92

Brush (Set) March, 809 High Speed

$60.92

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