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Johnson Controls

Johnson Controls

Browse Johnson Controls replacement parts at Furnace Part Source, including available BASO gas products, temperature controls, damper actuators, wall mount sensors, control modules, fan speed controls, pressure controls, and repair kits. Match the exact part number, equipment model, voltage, pressure range, temperature range, stroke, mounting requirements, and control details before ordering to help confirm the correct replacement.

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  • Qty in Cart
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  • Price
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  • Johnson Controls A421ABC-02 120/240V SPDT -40/212F 6' SEN

    Johnson Controls

    MSRP: $162.39
    Now: $125.49
    Johnson Controls A421ABC-02 120/240V SPDT -40/212F 6' SEN FurnacePartSource.com Commitment
    MSRP: $162.39
    Now: $125.49
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $162.39
    Now: $125.49
    Subtotal:
  • Furnace part souls images Furnace part souls images

    Johnson Controls A421ABC-03 Temperature Control, Electronic, 120/240 Vac

    Johnson Controls

    MSRP: $169.31
    Now: $130.83
    Johnson Controls A421ABC-03 Temperature Control, Electronic, 120/240 Vac  FurnacePartSource.com Commitment<
    MSRP: $169.31
    Now: $130.83
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $169.31
    Now: $130.83
    Subtotal:
  • Johnson Controls A421ABC-04 120/240V SPDT -40/212F 13' SEN

    Johnson Controls

    MSRP: $172.29
    Now: $133.14
    Johnson Controls A421ABC-04 120/240V SPDT -40/212F 13' SEN FurnacePartSource.com Commitment
    MSRP: $172.29
    Now: $133.14
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $172.29
    Now: $133.14
    Subtotal:
  • Johnson Controls A421ABC-06 120/240V SPDT -40/212F 19' SEN

    Johnson Controls

    MSRP: $179.22
    Now: $138.49
    Johnson Controls A421ABC-06 120/240V SPDT -40/212F 19' SEN FurnacePartSource.com Commitment
    MSRP: $179.22
    Now: $138.49
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $179.22
    Now: $138.49
    Subtotal:
  • Johnson Controls A421ABD-02 120/240V SPDT 6'SEN w/DfrstCyl

    Johnson Controls

    MSRP: $187.13
    Now: $144.60
    Johnson Controls A421ABD-02 120/240V SPDT 6'SEN w/DfrstCyl FurnacePartSource.com Commitment
    MSRP: $187.13
    Now: $144.60
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $187.13
    Now: $144.60
    Subtotal:
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    Johnson Controls A421ABG-02 120vPwrCrd SPDT -40/212F 6'SEN

    Johnson Controls

    MSRP: $222.78
    Now: $172.15
    Johnson Controls A421ABG-02 120vPwrCrd SPDT -40/212F 6'SEN  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $222.78
    Now: $172.15
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $222.78
    Now: $172.15
    Subtotal:
  • Johnson Controls A421ABT-02 Sensor w/Timer 120/240V SPDT 6'

    Johnson Controls

    MSRP: $187.13
    Now: $144.60
    Johnson Controls A421ABT-02 120/240V SPDT 6'SEN w/Timer FurnacePartSource.com Commitment
    MSRP: $187.13
    Now: $144.60
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $187.13
    Now: $144.60
    Subtotal:
  • Furnace part souls images

    Johnson Controls A421AEC-01 LineVoltNema4X ElecTempControl

    Johnson Controls

    MSRP: $235.04
    Now: $181.62
    Johnson Controls A421AEC-01 LineVoltNema4X ElecTempControl  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $235.04
    Now: $181.62
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $235.04
    Now: $181.62
    Subtotal:
  • Furnace part souls images

    Johnson Controls A421AEC-02 LineVoltNema4X ElecTempControl

    Johnson Controls

    MSRP: $239.91
    Now: $185.38
    Johnson Controls A421AEC-02 LineVoltNema4X ElecTempControl  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $239.91
    Now: $185.38
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $239.91
    Now: $185.38
    Subtotal:
  • Furnace part souls images

    Johnson Controls A421AED-01 120/240V SPDT 9"SEN w/DfrstCyl

    Johnson Controls

    MSRP: $273.06
    Now: $211.00
    Johnson Controls A421AED-01 120/240V SPDT 9"SEN w/DfrstCyl  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $273.06
    Now: $211.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $273.06
    Now: $211.00
    Subtotal:
  • Furnace part souls images

    Johnson Controls A421AED-02 120/240V SPDT 6'SEN w/NEMA 4

    Johnson Controls

    MSRP: $287.69
    Now: $222.31
    Johnson Controls A421AED-02 120/240V SPDT 6'SEN w/NEMA 4  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $287.69
    Now: $222.31
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $287.69
    Now: $222.31
    Subtotal:
  • Johnson Controls A421GBF-02 24V SPDT -40/212F 6' SEN NEMA1

    Johnson Controls

    MSRP: $162.39
    Now: $125.49
    Johnson Controls A421GBF-02 24V SPDT -40/212F 6' SEN NEMA1 FurnacePartSource.com Commitment
    MSRP: $162.39
    Now: $125.49
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $162.39
    Now: $125.49
    Subtotal:
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    Johnson Controls A421GEF-01C NEMA4X 24VAC TEMP CONTROL

    Johnson Controls

    MSRP: $234.07
    Now: $180.87
    Johnson Controls A421GEF-01C NEMA4X 24VAC TEMP CONTROL  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $234.07
    Now: $180.87
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $234.07
    Now: $180.87
    Subtotal:
  • Furnace part souls images

    Johnson Controls A421GEF-02 24V SPDT -40/212F 6'SEN NEMA4X

    Johnson Controls

    MSRP: $244.79
    Now: $189.16
    Johnson Controls A421GEF-02 24V SPDT -40/212F 6'SEN NEMA4X  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $244.79
    Now: $189.16
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $244.79
    Now: $189.16
    Subtotal:
  • Furnace part souls images

    Johnson Controls A70BA-18 15/55F,20',Open-Lo M/R

    Johnson Controls

    MSRP: $341.37
    Now: $263.78
    Johnson Controls A70BA-18 15/55F,20',Open-Lo M/R  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order Requirements
    MSRP: $341.37
    Now: $263.78
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $341.37
    Now: $263.78
    Subtotal:
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    Johnson Controls A70GA-1 15/55F Open-Lo 20' Cap Temperature Control

    Johnson Controls

    MSRP: $436.13
    Now: $337.01
    Johnson Controls A70GA-1 15/55F Open-Lo 20' Cap Temperature Control   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No...
    MSRP: $436.13
    Now: $337.01
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $436.13
    Now: $337.01
    Subtotal:
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    Johnson Controls A70GA-2 35/80F,Open-Lo,6',Aux.Open-Hi

    Johnson Controls

    MSRP: $365.84
    Now: $282.69
    Johnson Controls A70GA-2 35/80F,Open-Lo,6',Aux.Open-Hi  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $365.84
    Now: $282.69
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $365.84
    Now: $282.69
    Subtotal:
  • Furnace part souls images

    Johnson Controls A70HA-1 15/55F M/R OPEN-LO 20'CAP CTRL

    Johnson Controls

    MSRP: $373.11
    Now: $288.32
    Johnson Controls A70HA-1 15/55F M/R OPEN-LO 20'CAP CTRL  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $373.11
    Now: $288.32
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $373.11
    Now: $288.32
    Subtotal:
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    Johnson Controls A70HA-14 4 WIRE TEMPERATURE CONTROL

    Johnson Controls

    MSRP: $439.18
    Now: $339.37
    Johnson Controls A70HA-14 4 WIRE TEMPERATURE CONTROL  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $439.18
    Now: $339.37
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $439.18
    Now: $339.37
    Subtotal:
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Adding your products to cart

Johnson Controls HVAC and Furnace Replacement Parts

Johnson Controls parts can support a wide range of HVAC, furnace, heating, cooling, building control, and mechanical system applications. This brand page includes available Johnson Controls and BASO Gas Products replacement components such as control valves, temperature controls, damper actuators, wall mount sensors, control modules, fan speed controls, pressure controls, and repair kits. Because many Johnson Controls parts are application-specific, use the exact part number from the existing component or equipment documentation whenever possible.

Choosing the Right Johnson Controls Part

Start by comparing the product listing with the label on the original part. Important details may include voltage, control range, temperature range, pressure range, actuator stroke, spring return or non-spring return design, wiring requirements, sensor type, mounting style, valve compatibility, and kit contents. Similar Johnson Controls parts may serve different control functions, so the product name alone is not always enough to confirm compatibility.

BASO Gas Products, Controls, Sensors, and Actuators

Available Johnson Controls parts may include BASO gas control components, temperature controllers, proportional actuators, damper actuators, humidity or wall mount sensors, Ethernet control modules, pressure controls, and fan speed control components. These parts may be used in compatible HVAC control systems, furnace assemblies, gas-related equipment, ventilation systems, and building automation applications depending on the model and installation requirements.

Use Part Numbers and Equipment Details to Confirm Fit

For the best match, verify the Johnson Controls part number, equipment model, system application, electrical rating, pressure or temperature rating, mounting configuration, and connection details before purchasing. If the original label is unreadable, use the equipment data plate, control panel documentation, service manual, or parts diagram to help identify the correct replacement.

Confirm Compatibility Before Ordering

Johnson Controls replacement parts can be technical, model-specific, and installation-sensitive. For gas controls, pressure controls, electrical controls, sensors, actuators, and control modules, confirm that the selected part matches the system requirements before purchase. If the replacement is being used in a safety-related or control-critical application, review the equipment documentation or consult a qualified HVAC professional before installation.