Massive Parts Inventory

Replacement Boiler Parts Ready to Ship

Supplying boiler service companies across the US and internationally – same-day shipping.

Halmar is a boiler parts supplier offering a large inventory of high-quality aftermarket boiler parts, giving boiler service companies across the US and beyond a reliable source for aftermarket boiler parts. Boiler parts are shipped same day at competitive prices so repairs and maintenance stay on schedule. Our parts are precision-engineered to meet exact specifications, and are compatible with top OEM brands like Cleaver-Brooks.

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Boiler Replacement Parts Categories

Our high-quality industrial boiler parts and boiler accessories are built to be compatible with many premium OEM brands including Cleaver-Brooks*.

$Refractory Tiles$

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

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.

Gaskets

Halmar stocks an extensive inventory of gaskets including Spiral Wound, Topog-E®, Fireside, BLUE-MAX®, BLACK-MAX®, and White Max gaskets, plus Teflon, tadpole, and fiberglass sealing tapes.

Diffusers

Halmar manufactures diffusers for firetube and watertube boilers from stainless steel. Over 25 diffuser models available for firetube boilers including ones compatible with Cleaver-Brooks boilers, and several for watertube boilers.

Air Compressors

Air compressor parts help ensure your equipment lasts longer and prevents downtime. Halmar Boiler Parts stocks Air Compressor parts compatible with Cleaver-Brooks boilers.

Blowdown Valves

Blowdown valves are critical to ensure your boiler runs efficiently. We carry both fast-open and slow-open blowdown valves.

Blower Motors

Reliable forced-draft blower motors for industrial firetube boilers. These motors deliver the combustion air needed for efficient, stable burner performance. We stock quality replacements suitable for common firetube applications—contact us with your motor specs or boiler/burner details for fast matching and availability.

Feedwater Valves

Quality feedwater valves for industrial boilers. These valves regulate the flow of feedwater into the boiler to maintain proper water levels and support safe, efficient operation. We stock reliable replacements for common industrial applications—contact us with your valve specifications or boiler details for quick matching and availability.

Fuel Oil Controllers & Oil Nozzles

We stock several sizes compatible with Cleaver-Brooks and Industrial Combustion boilers from 15 HP through 800 HP boilers. Halmar also stocks Repair Kits for Fuel Oil Controllers.

Impellers

Durable impellers (blower wheels) for industrial burner applications. These components move combustion air efficiently through the burner assembly to support stable flame performance and reliable boiler operation. We stock quality replacements for common industrial burners—contact us with your impeller specs or burner details for fast matching and availability.

Burner Housings & Kits

Compatible with firetube and watertube boilers, our Burner Housings are manufactured for over ten models of boilers. Halmar also manufactures high turndown burner housings for other boiler models, constructed to include the orifice spuds.

Front Inner Doors & Insulation Kits

Manufactured in-house from quality materials that meet industry requirements. Sizes ranging from 15 HP to 800 HP, and 36″ to 96″ in diameter.

Boiler Gauge Glass

Halmar stocks Red Line and Reflex Gauge Glass in a full range of sizes, from ½" to ¾" diameter Red Line up to 72" lengths (custom cuts available) and Reflex sizes 1 through 9. We also carry the valve sets, washers, and gaskets needed to complete any gauge glass assembly, compatible with leading brands like Conbraco, Penberthy, and Clark-Reliance.

Water Level Controls

Reliable water level controls and low water cutoffs from McDonnell & Miller and Warrick for industrial boilers. These critical safety devices monitor boiler water levels and protect equipment by interrupting operation if levels drop too low. We stock quality replacements for common industrial applications—contact us with your model or boiler details for fast matching and availability.

Controls

Boiler controls from premium brands including, Honeywell, Fireye, Siemens Combustion, ASCO. Flame safeguards, pressure controls, proving switches, and more.

Pumps

Quality feedwater pumps from Grundfos, Aurora, and MTH for industrial boilers. These pumps deliver reliable water supply to maintain proper boiler water levels and support continuous, efficient operation. We stock dependable replacements for common industrial applications—contact us with your pump model or boiler details for fast matching and availability.

Pressure Gauges & Thermometers

Quality pressure and temperature gauges from Winters for industrial boiler and process applications. These gauges provide accurate monitoring of critical system conditions to support safe and efficient operation. We stock reliable replacements for common industrial setups—contact us with your gauge specifications or equipment details for fast matching and availability.

Safety Relief Valves

Reliable safety relief valves for industrial boilers and pressure vessels. These critical valves protect equipment by automatically releasing excess pressure to prevent overpressure conditions. We stock quality replacements for common industrial applications—contact us with your valve specifications or system details for fast matching and availability.

Boiler Valves

Durable valves from Everlasting Valve and United Brass Works for industrial boilers. These valves safely remove sediment and impurities from the boiler to help maintain efficiency and protect equipment. We stock quality replacements for common industrial applications—contact us with your valve model or boiler details for fast matching and availability.

Burner Parts

Quality replacement parts for industrial burners used on firetube, watertube and other commercial/industrial boilers. From combustion components like diffusers, burner housings, to linkages, controls, and hardware, we supply the parts needed to keep burners running reliably and efficiently. Contact us with your burner model or part details for fast matching and availability.

Accessories

Designed to optimize performance and longevity, our boiler accessories support seamless integration and peak operational efficiency. Halmar stocks an extensive inventory of essential components, including water level controls, burner components, pressure gauges, thermometers, and specialized safety relief valves to keep your system running reliably.

Aftermarket Boiler Parts

Understanding OEM and Aftermarket Boiler Parts

Traditional OEM boiler parts often mean long factory lead times and high distribution markups. Halmar’s aftermarket replacement boiler parts are engineered to match original material dimensions and performance ratings, delivering:

Precise mechanical fit and long service life
Lower cost than OEM sourcing

$On-site Inventory of refractory tiles$

Why Buyers Consider Aftermarket Boiler Parts

Boiler service companies choose aftermarket boiler parts from Halmar to avoid factory lead times, reduce equipment downtime, and protect profit margins on every job. Halmar’s product knowledge, on-site inventory, competitively priced, ensures:

Fast access to critical parts
Support for seasonal maintenance and urgent repairs
Competitive pricing that keeps repair jobs profitable

$Refractory tile construction area$

Compatible with Top OEM’s

Halmar’s aftermarket replacement boiler parts are engineered to be compatible with select brands including Cleaver-Brooks , Vapor Power, Coen, and Powermaster. Compatible parts include:

Refractory tiles
Burner housings and door kits
Combustion assembly components
Gaskets and gasket kits

*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.

Frequently Asked Questions About OEM and Aftermarket Boiler Parts

What are the main parts of a boiler

The main parts of the boiler can be broken down into the following categories

Waterside
- Water level control and monitoring
- Feedwater components
- Blowdown components
Fireside
- Flame safeguard components
- Fuel train components
- Electrical panel and motors

Didn’t find your answer? Ask us!

Replacement Boiler Parts Ready to Ship

Supplying boiler service companies across the US and internationally – same-day shipping.