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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.

Buehler C21 Pump PLX-100-900 with a compact design and control panel for fluid transfer.
$152.90

Buehler C21 Pump PLX-100-900

Buehler C21 circulation pump (PLX-100-900) for Aqua-Hot hydronic heating systems. This pump circulates heated coolant through the system's zones, c...

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$152.90
CONS Nylatch Plunger model HDX-100-200 with black plastic body and metal pin.
$1.38

CONS Nylatch Plunger - HDX-100-200

Nylatch plunger (HDX-100-200) for Aqua-Hot heating systems. This latch component secures access panels and service covers on Aqua-Hot cabin heaters...

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$1.38
3 quart expansion tank with 5/16 inch tubing for Aqua-Hot heating models
Sold out
$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
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A compact 12 VDC circulation pump with durable housing and inlet/outlet ports.
Save $27.91
$930.30
$902.39

BR-809 Circulation Pump, 12 VDC - NEW

BR-809 circulation pump, 12 VDC, for Aqua-Hot and Hydro-Hot hydronic heating systems. This new-style pump circulates heated coolant through the sys...

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$930.30
$902.39
Save $27.91
5-quart expansion tank assembly with a durable design and connection fittings.
Save $3.11
$103.75
$100.64

5 Qt. Expansion Tank Assembly PLE-622-902

5-quart expansion tank assembly (PLE-622-902) for Aqua-Hot hydronic heating systems. The larger capacity accommodates greater coolant volume in sys...

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$103.75
$100.64
Save $3.11
$0.00

2 Zone Pump Manifold Pipe Assembly

2-zone pump manifold pipe assembly for Aqua-Hot hydronic heating systems. This pre-assembled manifold distributes heated coolant to two independent...

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$0.00

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