All Parts

The Annual Service Kit, Johns Custom Kits is used in Aqua-Hot & Hydro-Hot diesel heating systems for routine yearly maintenance. This kit inclu...

The Fluid Level Sensor FRU are direct replacement parts used in Aqua-Hot hydronic heating systems to monitor antifreeze levels in the expansion tan...

The 145°F tempering mixer valve designed for Aqua-Hot and Hydro-Hot hydronic heating systems. This valve blends hot water from the system's tank wi...

The Air Swirler, Webasto (DBW2010) is a direct replacement part for Webasto DBW 2010 diesel burner designed to regulate the air-fuel mixture for op...

The Fuel Solenoid Valve 12 VDC, Webasto (DBW2010) is a direct replacement part for select Webasto DBW 2010 hydronic heating systems. This valve al...

The Low Temp Cut-Off Thermostat Assembly is a direct replacement part in Aqua-Hot & Hydro-Hot hydronic heating systems, designed to monitor and...

The Fuel Pressure Gauge Test Tool is an essential diagnostic instrument designed to measure the fuel pressure delivered to the nozzle from the fuel...

The Oasis Nozzle Filter is a direct replacement part for maintaining clean, efficient fuel delivery within your Oasis hydronic heating system. Desi...

The Blower Casing, Webasto (DBW2010) is a direct replacement part for Webasto DBW 2010 diesel burner. Important Information Protects Blower Assem...

The Copper Gasket Ring, Webasto (DBW2010) is a direct replacement part for the Webasto DBW 2010 burner. These gasket rings ensure a secure, leak-fr...

Upgrade your fuel system with the Johns Custom Kits Flexible Fuel Line Conversion Kit for Webasto (DBW2010). This high-quality kit replaces rigid f...

The Nylon Drive Gear, Webasto (DBW2010) is a direct replacement part for Webasto DBW 2010 diesel burner in the fuel pump drive system of the Webast...

The Pink/Red Century Boiler Antifreeze, Gallon is used in Aqua-Hot, Hydro-Hot, Hurricane & Oasis hydronic heating systems to protect against fr...

The White Dot Thermostat is a direct replacement part used in Aqua-Hot hydronic heating systems as a safety shutoff to prevent overheating. This th...

The Black Dot Hi-Limit Thermostat is a direct replacement part used in Aqua-Hot & Hydro-Hot hydronic heating systems as a safety device to prev...

The 198°F Red Dot Control Thermostat is a direct replacement part designed for Aqua-Hot hydronic heating systems. This AC thermostat monitors the b...

The Combustion Chamber, Webasto (DBW2010)  is a direct replacement for select Webasto DBW 2010 hydronic heating systems designed to support efficie...

The Blue Dot Thermostat is a direct replacement part used in Aqua-Hot & Hydro-Hot hydronic heating systems. Engineered to activate at 190 degre...

The Yellow/Green Century Boiler Antifreeze, Gallon is used in Aqua-Hot, Hydro-Hot, Hurricane & Oasis hydronic heating systems to protect agains...

The Ignition Wire (Pair), Webasto (DBW2010) - WPX-178-624 is a direct replacement parts in the Webasto DBW 2010 burner, ensuring a strong and relia...

The Oasis Nozzle O-Ring is a direct replcacement part used in Oasis hydronic heating systems to maintain a tight, leak-free connection between the ...

The Air Swirler Housing is a direct replacement part for Webasto DBW 2010 diesel burner for maintaining proper air-fuel mixture. This housing help...

The Red/Pink Century Boiler Antifreeze, Quart is a propylene glycol-based antifreeze specifically formulated for use in Aqua-Hot & Hydro-Hot ...

The Compressor Air Filter Sintered is a direct replcacement part designed to filter out dust, debris, and moisture from the compressor air supply i...