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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Johnson Controls A28AA-4 30/110F 2-Stg Coil-Bulb,2-Spdt
Johnson Controls
MSRP: $390.27Now: $301.58Johnson 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: $390.27Now: $301.58 -
Johnson Controls A28GJ-33 2 Spdt,60-90F,5',3/8" X 3 1/2"
Johnson Controls
MSRP: $475.86Now: $367.71Johnson 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: $475.86Now: $367.71 -
Johnson Controls A28PA-2 2-Stage Temperature Control Nema 4X
Johnson Controls
MSRP: $668.27Now: $516.39Johnson 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: $668.27Now: $516.39 -
Johnson Controls A28PJ-1 Nema 4X 30-110 F. 2-Sp/Dt Switchtc
Johnson Controls
MSRP: $605.07Now: $467.56Johnson 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: $605.07Now: $467.56 -
Johnson Controls A350AA-1 -30/130F 24V,SPDT,W/BULB,TSTAT
Johnson Controls
MSRP: $278.50Now: $215.21Johnson 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: $278.50Now: $215.21 -
Johnson Controls A350AA-2 90/250F Spdt 24Vw/Bulb, 1/30 Dif.
Johnson Controls
MSRP: $278.50Now: $215.21Johnson 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: $278.50Now: $215.21 -
Johnson Controls A350AA-3 -30/130F SPDT 24V CONCEAL STPT
Johnson Controls
MSRP: $278.54Now: $215.23Johnson 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: $278.54Now: $215.23 -
Johnson Controls A350AB-1 Mod Low Range Electronic Temperature Control
Johnson Controls
MSRP: $243.46Now: $188.13Johnson 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: $243.46Now: $188.13 -
Johnson Controls A350AB-2 90/250F SPDT LESS SENSOR
Johnson Controls
MSRP: $278.50Now: $215.21Johnson 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: $278.50Now: $215.21 -
Johnson Controls A350BA-1 -34/55C Spdt 24V W/Bulb Stat
Johnson Controls
MSRP: $278.50Now: $215.21Johnson 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: $278.50Now: $215.21 -
Johnson Controls A350EA-4 10-65F Dif. 1-30 Temperature Module
Johnson Controls
MSRP: $278.50Now: $210.99Johnson 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: $278.50Now: $210.99 -
Johnson Controls A350PS-2 90/240F(30/120C) Prop. Stat
Johnson Controls
MSRP: $642.53Now: $496.50Johnson 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: $642.53Now: $496.50 -
Johnson Controls A350PS-7 PROPORTIONAL TEMP CONTROL
Johnson Controls
MSRP: $642.53Now: $496.50Johnson Controls A350PS-7 PROPORTIONAL TEMP CONTROL FurnacePartSource.com CommitmentMSRP: $642.53Now: $496.50 -
Johnson Controls A350PT-1 Prop. Temperature Control W/O Sensor
Johnson Controls
MSRP: $537.04Now: $414.99Johnson 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: $537.04Now: $414.99 -
Johnson Controls A350RS-1 Temperature Reset Control, 1.5:3.1,40-70F
Johnson Controls
MSRP: $750.77Now: $580.14Johnson 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: $750.77Now: $580.14 -
Johnson Controls A350SS-1 Temperature Reset Mod,1:5-10:1Ratio,24V
Johnson Controls
Johnson Controls A350SS-1 Temperature Reset Mod,1:5-10:1Ratio,24V FurnacePartSource.com Commitment Item Typically Ships Within the Same Business Day Brand-New Genuine Parts - EverytimeNo Minimum...Qty in Cart: 0Price:Subtotal: -
Johnson Controls A421ABC-02 120/240V SPDT -40/212F 6' SEN
Johnson Controls
MSRP: $162.39Now: $125.49Johnson Controls A421ABC-02 120/240V SPDT -40/212F 6' SEN FurnacePartSource.com CommitmentMSRP: $162.39Now: $125.49 -
Johnson Controls A421ABC-03 Temperature Control, Electronic, 120/240 Vac
Johnson Controls
MSRP: $169.31Now: $130.83Johnson Controls A421ABC-03 Temperature Control, Electronic, 120/240 Vac FurnacePartSource.com Commitment<MSRP: $169.31Now: $130.83 -
Johnson Controls A421ABC-04 120/240V SPDT -40/212F 13' SEN
Johnson Controls
MSRP: $172.29Now: $133.14Johnson Controls A421ABC-04 120/240V SPDT -40/212F 13' SEN FurnacePartSource.com CommitmentMSRP: $172.29Now: $133.14 -
Johnson Controls A421ABC-06 120/240V SPDT -40/212F 19' SEN
Johnson Controls
MSRP: $179.22Now: $138.49Johnson Controls A421ABC-06 120/240V SPDT -40/212F 19' SEN FurnacePartSource.com CommitmentMSRP: $179.22Now: $138.49
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.