Boiler Parts

When a boiler stops heating, short-cycles or leaks, the fix is usually one part, not a new boiler. This hub brings the most-replaced hot water and steam boiler parts together in one place, listed by manufacturer part number so you can match the number on the old part or in the boiler's parts list.

Controls and ignition: aquastats and immersion wells (Honeywell/Resideo L8148E, L4006, L4008 and others), gas valves, ignition modules, pilot assemblies, thermocouples and thermopiles, oil burner controls and low water cut-offs.

Water side and safety: boiler pressure relief valves, boiler fill and feed valves, expansion tanks, air separators and air vents, boiler drains, temperature and pressure gauges, magnetic dirt filters and complete boiler trim kits.

Circulators: fixed and variable speed circulator pumps from Taco, Grundfos and others, including direct replacements for the Taco 007 and Grundfos UPS15-58.

Brand parts: factory US Boiler / Burnham parts plus parts for Weil-McLain and other major boilers.

Before you order, check the boiler's model and serial number on the rating plate and compare the old part's number, voltage and connection size. Gas valve, ignition and burner work should be done by a qualified heating technician. Not sure what you need? Our zone valve replacement guide and the free Zone Planner can help, or contact us with your part number.