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Furnace & HVAC Replacement Parts

Furnace & HVAC Replacement Parts

Shop the full range of furnace and HVAC replacement parts at Furnace Part Source, covering heating, cooling, and control components for residential, commercial, and industrial equipment. Browse by category or search by exact part number to find the right replacement fast.

Use the category filters below to narrow results by part type, including actuators, assemblies, blower motors, burners, capacitors, control boards, coils, contactors, dampers, drain pans, heating elements, flame sensors, ignitors, motors, switches, transformers, and wiring.

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    Mamac PR-282-4-2-A-1-2-B 24VDC 0/30# RA Xdcr;4/20mA Out

    Mamac

    MSRP: $438.32
    Now: $332.06
    Mamac PR-282-4-2-A-1-2-B 24VDC 0/30# RA Xdcr;4/20mA Out  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $438.32
    Now: $332.06
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    MSRP: $438.32
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    Mamac HU-227-3-VDC-12 OUTDOOR HUMIDITY TRANSMITTER

    MAMAC Systems

    MSRP: $172.79
    Now: $133.52
    Mamac HU-227-3-VDC-12 OUTDOOR HUMIDITY TRANSMITTER  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $172.79
    Now: $133.52
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    MSRP: $172.79
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    Mamac PR-282-3-4-B-1-2-B 0/100# 24V Xducer; 0/10VDC Out

    Mamac

    MSRP: $438.32
    Now: $332.06
    Mamac PR-282-3-4-B-1-2-B 0/100# 24V Xducer; 0/10VDC Out  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $438.32
    Now: $332.06
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    MSRP: $438.32
    Now: $332.06
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    Mamac HU-225-2-VDC 2% Wall Mt Hum Xdcr; 0-5/10VDC

    MAMAC Systems

    MSRP: $149.74
    Now: $115.71
    Mamac HU-225-2-VDC 2% Wall Mt Hum Xdcr; 0-5/10VDC  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $149.74
    Now: $115.71
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    MSRP: $149.74
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    Mamac PR-282-4-4-A-1-2-B 0/100# 24VDC Diff#Xdcr;4-20Out

    Mamac

    MSRP: $438.32
    Now: $332.06
    Mamac PR-282-4-4-A-1-2-B 0/100# 24VDC Diff#Xdcr;4-20Out Differential Pressure Transducer with 4-20mA Output Signal
    MSRP: $438.32
    Now: $332.06
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    MSRP: $438.32
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    Mamac HU-224-3-VDC 3% DuctMnt Hum Xdcr;0-5/0-10VD

    MAMAC Systems

    MSRP: $149.74
    Now: $115.71
    Mamac HU-224-3-VDC 3% DuctMnt Hum Xdcr;0-5/0-10VD  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $149.74
    Now: $115.71
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    MSRP: $149.74
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    Mamac HU-921-1-VDC-8 HUMIDITY XDCR VDC 10Kohm NTC

    MAMAC Systems

    MSRP: $246.84
    Now: $190.74
    Mamac HU-921-1-VDC-8 HUMIDITY XDCR VDC 10Kohm NTC  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $246.84
    Now: $190.74
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    MSRP: $246.84
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    MAMAC Systems EP-311-315 Electropneumatic Transducer 3-15 PSIG

    MAMAC Systems

    MSRP: $180.41
    Now: $139.41
    MAMAC Systems EP-311-315 Electropneumatic Transducer 3-15 PSIG 18-28Vac/Vdc supply voltage<
    MSRP: $180.41
    Now: $139.41
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    MSRP: $180.41
    Now: $139.41
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    Mamac VM-706 SS Isolat/Null 3valve Manifold

    MAMAC Systems

    MSRP: $375.70
    Now: $284.62
    Mamac VM-706 SS Isolat/Null 3valve Manifold  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $375.70
    Now: $284.62
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    MSRP: $375.70
    Now: $284.62
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    Mamac HU-224-2-VDC 2% Duct Mnt Hum Sens;0-5/10VDC

    MAMAC Systems

    MSRP: $176.96
    Now: $136.74
    Mamac HU-224-2-VDC 2% Duct Mnt Hum Sens;0-5/10VDC  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $176.96
    Now: $136.74
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    MSRP: $176.96
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    Mamac PR-276-R10-MA 0-5/2.5/1.25" Duct # Xdcr;4-20

    MAMAC Systems

    MSRP: $191.66
    Now: $148.10
    Mamac PR-276-R10-MA 0-5/2.5/1.25" Duct # Xdcr;4-20  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $191.66
    Now: $148.10
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    MSRP: $191.66
    Now: $148.10
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    Mamac HU-226-3-VDC-12 10K Ohm 3% Temp/Hum Sens VDC

    MAMAC Systems

    MSRP: $163.35
    Now: $126.22
    Mamac HU-226-3-VDC-12 10K Ohm 3% Temp/Hum Sens VDC  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $163.35
    Now: $126.22
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    MSRP: $163.35
    Now: $126.22
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    Mamac PR-275-R3-VDC PanelMt Low # Xducer;0-5/10VDC

    MAMAC Systems

    MSRP: $167.71
    Now: $129.59
    Mamac PR-275-R3-VDC PanelMt Low # Xducer;0-5/10VDC  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $167.71
    Now: $129.59
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    MSRP: $167.71
    Now: $129.59
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    Mamac HU-224-3-MA 3% DuctMnt Hum Xdcr;4-20mA Out

    MAMAC Systems

    MSRP: $149.74
    Now: $115.71
    Mamac HU-224-3-MA 3% DuctMnt Hum Xdcr;4-20mA Out   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order...
    MSRP: $149.74
    Now: $115.71
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    Qty in Cart: 0
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    MSRP: $149.74
    Now: $115.71
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    Mamac PR-276-R10-VDC 0/5/2.5/1.25" Duct # Transducr

    MAMAC Systems

    MSRP: $197.47
    Now: $152.59
    Mamac PR-276-R10-VDC 0/5/2.5/1.25" Duct # Transducr  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $197.47
    Now: $152.59
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    MSRP: $197.47
    Now: $152.59
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    Mamac PR-275-R2-VDC PanelMt Low # Xdcr; 0-5/10VDC

    MAMAC Systems

    MSRP: $167.71
    Now: $129.59
    Mamac PR-275-R2-VDC PanelMt Low # Xdcr; 0-5/10VDC  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $167.71
    Now: $129.59
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    MSRP: $167.71
    Now: $129.59
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    Mamac PR-274-R2-MA 4-20ma Low#Trnsdcr SelectRange

    MAMAC Systems

    MSRP: $185.13
    Now: $143.06
    Mamac PR-274-R2-MA 4-20ma Low#Trnsdcr SelectRange  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $185.13
    Now: $143.06
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    MSRP: $185.13
    Now: $143.06
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    Mamac PR-275-R2-MA PanelMt Low # Xdcr; 4/20mA Out

    MAMAC Systems

    MSRP: $160.08
    Now: $123.70
    Mamac PR-275-R2-MA PanelMt Low # Xdcr; 4/20mA Out  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $160.08
    Now: $123.70
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    MSRP: $160.08
    Now: $123.70
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    Mamac HU-225-2-MA Wall Mnt 2% Hum. Sensor;4/20mA

    MAMAC Systems

    MSRP: $149.74
    Now: $115.71
    Mamac HU-225-2-MA Wall Mnt 2% Hum. Sensor;4/20mA  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $149.74
    Now: $115.71
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    Qty in Cart: 0
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    MSRP: $149.74
    Now: $115.71
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    Mamac PR-274-R2-VDC Enclosed Low # Xducr;0-5/10VDC

    MAMAC Systems

    MSRP: $185.13
    Now: $143.06
    Mamac PR-274-R2-VDC Enclosed Low # Xducr;0-5/10VDC  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $185.13
    Now: $143.06
    Add to Cart Quick view
    Qty in Cart: 0
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    MSRP: $185.13
    Now: $143.06
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Furnace & HVAC Replacement Parts

This is the master category for every furnace and HVAC replacement part carried by Furnace Part Source, spanning heating, cooling, and control components across residential, commercial, and industrial equipment. Whether you're troubleshooting a specific failure or stocking parts for a service route, this category is the starting point for locating what you need.

Because this catalog spans thousands of individual parts across dozens of subcategories, the fastest way to find what you need is to search by exact OEM part number or browse into a specific subcategory, such as motors, blowers, ignitors, or control boards.

Major Subcategories

This category includes dedicated subcategories for:

  • Motors and blowers, including main blower motors, inducer motors, and blower assemblies.
  • Ignition components, including hot surface ignitors, pilot burners, and flame sensors.
  • Controls, including control boards, ignition modules, relays, and switches.
  • Electrical components, including capacitors, contactors, transformers, and circuit breakers.
  • Structural and mechanical parts, including housings, brackets, bearings, and pulleys.
  • Combustion and venting parts, including burners, gas valves, heat exchangers, and vent dampers.

How to Find the Right Part

Before ordering, check the equipment data plate and the existing part for the model number, serial number, and part number. Because this category covers such a wide range of equipment types and brands, matching by exact part number is the most reliable way to confirm compatibility.

For best fit, compare:

  • Original part number
  • Equipment model and serial number
  • Voltage, fuel type, and system type
  • Replacement or superseded part number, if applicable

Furnace & HVAC Parts From Leading Brands

Our catalog includes replacement parts from Carrier, Trane, York, Lennox, Rheem-Ruud, Amana-Goodman, Copeland, Honeywell, and hundreds of other HVAC, refrigeration, and combustion equipment manufacturers, covering both OEM and cross-reference replacement parts.

Need Help Finding a Part?

Not sure which subcategory to search, or which part you need? Use the model number, serial number, and existing part number from your equipment, or contact Furnace Part Source for help identifying the correct replacement.

Furnace & HVAC Replacement Parts FAQs

How do I find a specific part quickly in this category?

The fastest way is to search by the exact OEM part number printed on the existing component, or to browse into a more specific subcategory, such as motors, ignitors, or control boards.

Do you carry parts for both residential and commercial equipment?

Yes. This category includes parts for residential furnaces and air handlers as well as light-commercial and industrial heating, cooling, and combustion equipment.

What if I don't know the exact part number I need?

Use the equipment model number and serial number to help narrow the search, or contact Furnace Part Source for assistance identifying the correct replacement part.

Are replacement parts here new or used?

Furnace Part Source carries brand-new replacement parts, including OEM and compatible cross-reference components, unless a listing specifically states otherwise.