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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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  • Furnace part souls images

    Johnson Controls A28AA-4 30/110F 2-Stg Coil-Bulb,2-Spdt

    Johnson Controls

    MSRP: $390.27
    Now: $301.58
    Johnson Controls A28AA-4 30/110F 2-Stg Coil-Bulb,2-Spdt  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $390.27
    Now: $301.58
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $390.27
    Now: $301.58
    Subtotal:
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    Johnson Controls A28GJ-33 2 Spdt,60-90F,5',3/8" X 3 1/2"

    Johnson Controls

    MSRP: $475.86
    Now: $367.71
    Johnson Controls A28GJ-33 2 Spdt,60-90F,5',3/8" X 3 1/2"  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $475.86
    Now: $367.71
    Qty in Cart: 0
    Quantity:
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    MSRP: $475.86
    Now: $367.71
    Subtotal:
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    Johnson Controls A28PA-2 2-Stage Temperature Control Nema 4X

    Johnson Controls

    MSRP: $668.27
    Now: $516.39
    Johnson Controls A28PA-2 2-Stage Temperature Control Nema 4X   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum Order...
    MSRP: $668.27
    Now: $516.39
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $668.27
    Now: $516.39
    Subtotal:
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    Johnson Controls A28PJ-1 Nema 4X 30-110 F. 2-Sp/Dt Switchtc

    Johnson Controls

    MSRP: $605.07
    Now: $467.56
    Johnson Controls A28PJ-1 Nema 4X 30-110 F. 2-Sp/Dt Switchtc   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum...
    MSRP: $605.07
    Now: $467.56
    Qty in Cart: 0
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    Price:
    MSRP: $605.07
    Now: $467.56
    Subtotal:
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    Johnson Controls A350AA-1 -30/130F 24V,SPDT,W/BULB,TSTAT

    Johnson Controls

    MSRP: $278.50
    Now: $215.21
    Johnson Controls A350AA-1 -30/130F 24V,SPDT,W/BULB,TSTAT  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $278.50
    Now: $215.21
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $278.50
    Now: $215.21
    Subtotal:
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    Johnson Controls A350AA-2 90/250F Spdt 24Vw/Bulb, 1/30 Dif.

    Johnson Controls

    MSRP: $278.50
    Now: $215.21
    Johnson Controls A350AA-2 90/250F Spdt 24Vw/Bulb, 1/30 Dif.   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - Everytime No Minimum...
    MSRP: $278.50
    Now: $215.21
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $278.50
    Now: $215.21
    Subtotal:
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    Johnson Controls A350AA-3 -30/130F SPDT 24V CONCEAL STPT

    Johnson Controls

    MSRP: $278.54
    Now: $215.23
    Johnson Controls A350AA-3 -30/130F SPDT 24V CONCEAL STPT  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $278.54
    Now: $215.23
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $278.54
    Now: $215.23
    Subtotal:
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    Johnson Controls A350AB-1 Mod Low Range Electronic Temperature Control

    Johnson Controls

    MSRP: $243.46
    Now: $188.13
    Johnson Controls A350AB-1 Mod Low Range Electronic Temperature Control   FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts -...
    MSRP: $243.46
    Now: $188.13
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $243.46
    Now: $188.13
    Subtotal:
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    Johnson Controls A350AB-2 90/250F SPDT LESS SENSOR

    Johnson Controls

    MSRP: $278.50
    Now: $215.21
    Johnson Controls A350AB-2 90/250F SPDT LESS SENSOR  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $278.50
    Now: $215.21
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $278.50
    Now: $215.21
    Subtotal:
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    Johnson Controls A350BA-1 -34/55C Spdt 24V W/Bulb Stat

    Johnson Controls

    MSRP: $278.50
    Now: $215.21
    Johnson Controls A350BA-1 -34/55C Spdt 24V W/Bulb Stat  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $278.50
    Now: $215.21
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $278.50
    Now: $215.21
    Subtotal:
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    Johnson Controls A350EA-4 10-65F Dif. 1-30 Temperature Module

    Johnson Controls

    MSRP: $278.50
    Now: $210.99
    Johnson Controls A350EA-4 10-65F Dif. 1-30 Temperature Module  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $278.50
    Now: $210.99
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $278.50
    Now: $210.99
    Subtotal:
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    Johnson Controls A350PS-2 90/240F(30/120C) Prop. Stat

    Johnson Controls

    MSRP: $642.53
    Now: $496.50
    Johnson Controls A350PS-2 90/240F(30/120C) Prop. Stat  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $642.53
    Now: $496.50
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $642.53
    Now: $496.50
    Subtotal:
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    Johnson Controls A350PT-1 Prop. Temperature Control W/O Sensor

    Johnson Controls

    MSRP: $537.04
    Now: $414.99
    Johnson Controls A350PT-1 Prop. Temperature Control W/O Sensor  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum Order...
    MSRP: $537.04
    Now: $414.99
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $537.04
    Now: $414.99
    Subtotal:
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    Johnson Controls A350RS-1 Temperature Reset Control, 1.5:3.1,40-70F

    Johnson Controls

    MSRP: $750.77
    Now: $580.14
    Johnson Controls A350RS-1 Temperature Reset Control, 1.5:3.1,40-70F  FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum...
    MSRP: $750.77
    Now: $580.14
    Qty in Cart: 0
    Quantity:
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    MSRP: $750.77
    Now: $580.14
    Subtotal:
  • 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:
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    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:
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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.