75+ Years of Expertise  •  Made in the USA

Boiler Parts Supplier Trusted by Service Techs for 75+ Years

Thousands of aftermarket boiler parts are stocked and ready to ship same-day. We’ve seen it all, so you can count on getting the right part, fast.

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Our boiler replacement parts are compatible with these top brands:

Cleaver-Brooks  •  Vapor Power  •  Coen  •  Powermaster  •  & More

  • Same-Day Shipping

    When Timing Matters

  • 75+ Years, USA-Made

    Deep Parts Inventory

  • Expert Help

    Finding the Right Part

  • Huge Inventory

    At Great Prices

Popular Boiler Parts Categories

Refractory Tiles

Refractory Tiles

Our precision refractory tiles are used in over 10,000 installations worldwide. Halmar manufactures the highest quality refractory tiles, compatible with premium OEM's including Cleaver Brooks.  300+ molds available.

Gasket Kits

Gasket Kits

Halmar assembles Fireside Gasket Kits for more than ten models of firetube and watertube boilers. Each kit includes model-specific gaskets, along with spray adhesive and a ceramic fiber insulating strip.

Diffusers

Diffusers

Halmar manufactures diffusers for firetube and watertube boilers from stainless steel to meet exacting specifications. Over 25 disffuser models available for firetube boilers, and several models for burners for watertube boilers.

Burner Housings & Kits

Burner Housings & Kits

Made to exacting specifications for over 10 models of firetube and watertube boilers. We also manufacture high turndown burner housings for other boiler models, constructed to include the orifice spuds.

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48-state coverage.
75+ years in business.
Most orders ship same day.
Inquiry responses within 1 business day.
Boiler Parts Supplier part of a North America-wide network.

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Halmar aftermarket boiler parts are compatible with these popular OEMs

American-made, field-tested boiler replacement parts designed for seamless compatibility with major industry brands.

 
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What Our Customers are Saying

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Ralph P.

Co-owner

Halmar is our go-to supplier because of product availability, competitive prices, extensive industry knowledge and outstanding service.

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Gary T.

Inside Sales/Procurement Manager

The Halmar shop is incredibly organized, clean, and neat! It is unbelievable how much inventory is on the shelves and ready to be shipped immediately.

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Sarah M.

Project Manager

Halmar has been a huge part of our Company's success. Their staff is very knowledgeable. I consider our relationship with Halmar to be a great asset.

The Halmar Advantage

Why Boiler Service Companies choose Halmar as their Boiler Parts Supplier

The Halmar Advantage comes down to what matters most to service companies: price, expertise, and speed. As a premium aftermarket boiler parts supplier, we’re a true one-stop shop for boiler parts and accessories, backed by decades of hands-on industry knowledge that ensures you get the exact part for your equipment, minimizing downtime. Our Aftermarket Boiler Parts are compatible with Premium OEM brands including Cleaver Brooks and more.

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  • Made in the USA

    By keeping production and oversight local, we insulate our partners from volatile global supply chain delays. Our facility uses proven casting molds to manufacture components precision-engineered to meet exact specifications, built to hold up under continuous industrial service.

  • One-Stop Sourcing & Compatibility with Top Boiler Brands

    We stock parts compatible with major OEM brands, including Cleaver-Brooks and more, combined with pricing that keeps you profitable. Can’t find what you need on our shelves? We’ll track it down and get it to you fast.

  • Same-Day Shipping

    We understand that boiler downtime isn’t an option. That’s why we’ve built our Louisville, KY facility around speed and precision, with extensive inventory on hand and ready to ship. Order by 2:00 PM EST, and we’ll get your boiler replacement parts out the same day.

  • Expert Knowledge, Fast Response

    Our knowledgeable staff helps you identify the exact replacement boiler part for any repair or installation, drawing on decades of industry experience. We respond to every inquiry within one business day, and if it’s urgent, just call us directly (502) 459-9131

Need help finding the right boiler replacement part?

Our knowledgable staff are ready to assist you.

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Frequently Asked Questions About Aftermarket Boiler Parts

Yes. Halmar manufactures high-quality replacement parts precision-engineered to be completely compatible with premium original equipment manufacturers (OEMs). Our aftermarket boiler parts  replace original parts seamlessly across major brands, including Cleaver-Brooks, Power Master, Coen, and Vapor Power.

*Halmar Corporation offers many Cleaver-Brooks aftermarket parts. Halmar Corporation is not a factory authorized sales representative for Cleaver-Brooks, nor is Halmar Corporation affiliated with Cleaver-Brooks in any way. Cleaver-Brooks is a registered trademark of Cleaver-Brooks, Inc., Thomasville, GA. Some aftermarket parts may be made by other manufacturers.

While our internal part numbers differ from individual boiler manufacturers, we utilize a smart identification system where the last 3 digits correspond exactly with the OEM part number. You can enter your current OEM number into our website’s smart search bar to automatically match it with the correct Halmar equivalent, ensuring a seamless fit for your boiler’s specific model and horsepower. From boiler guage glass, to boiler accessories, refractory, and more, we have the part you need.

We understand that equipment downtime is costly. To support standard maintenance and critical emergency repairs, we offer Same-Day Shipping on all in-stock aftermarket boiler parts for orders placed by 2:00 PM EST, Monday through Friday.

Absolutely. Halmar is your trusted boiler parts supplier for custom-engineered boiler refractory tiles. If you are working with specialized dimensions or a legacy system not covered in our standard catalog, you can send a physical sample of your existing tile directly to our Louisville, Kentucky facility. Our manufacturing team will replicate it to create an exact, high-durability replacement tailored to your system.

Our fireside and waterside gasket kits are designed for maximum field efficiency. Each kit comes completely pre-packaged with all of the individual gaskets and necessary items required to complete a full boiler repair or front/rear door maintenance in a single service call, eliminating the need to source separate companion components.

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