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All appliances have a model number and a serial number tag located on the appliance. Generally they are available for the customer to find quickly. If you are unable to locate your tag, please see your original manual and or invoice from when you purchased the appliance.

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Siemens

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283-03023 Siemens Building Technology 2W N/C S.s. Fxf 1"1.0

$749.71 USD

Limited Stock Available

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274-03187 Siemens Building Technology 1 1/2"N/C,Fxf,25Cv,4-20Ma,Skc

$1,184.49 USD

Limited Stock Available

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QPM2100 Siemens Building Technology Co2 Ductsensor, 0To10Vdc

$463.70 USD

Limited Stock Available

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QAA2212.EWSN Siemens Building Technology 1Kohm Plat Rtd 385Alpha Sensor

$37.34 USD

Limited Stock Available

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599-03023 Siemens Building Technology 1" Nc Ss Linear Vlv Body Cv10

$322.45 USD

Limited Stock Available

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331-958 Siemens Building Technology Link Kit #3,4,6 Link&Crank

$41.17 USD

Limited Stock Available

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RAA20U Siemens Building Technology Htorcl 24V/Pos W/Exposed Knob

$31.78 USD

Limited Stock Available

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599-02027 Siemens Building Technology 3/4"2Way N/C,S.s. 6.3Cv Eq%

$127.87 USD

Limited Stock Available

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256-02027 Siemens Building Technology 3/4" Nc Ss 6.3Cv 10-15# 2"Top

$206.24 USD

Limited Stock Available

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599-03060 Siemens Building Technology 1 1/4"N/O Ss Trim Vlv , 16Cv

$453.21 USD

Limited Stock Available

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147-314 Siemens Building Technology Positionermtgkit #4 Actuators

$67.42 USD

Limited Stock Available

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373-03023 Siemens Building Technology 2W N/C S.s. Fxf 1"1.0 24V Nsr

$709.89 USD

Limited Stock Available

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255-01136 Siemens Building Technology 1/2 3W Lin 24V Nsr 0-10Vdc

$222.59 USD

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599-01136 Siemens Building Technology 1/2" 3W Mixing Vlv 2.5Cv Brnz

$63.11 USD

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SQM50.464R1H3 Siemens Combustion 140Lb,25Sec,90Deg,135Ohm Ccw

$1,823.54 USD

Limited Stock Available

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SQM41.254R11 Siemens Combustion 90In# 110V 3/8" Actuator

$827.26 USD

Limited Stock Available

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Heating Cooling Parts

2023 W Fullerton Ave

Chicago, IL 60647

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©2026 HeatingCoolingParts dba of Midwest Appliance Parts Co. Inc
This site is not affiliated with or endorsed by any of the original manufacturers listed.
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This product must be installed by a qualified/licensed contractor and set up with properly calibrated combustion test equipment. Failure to comply with this could result in substantial property damage, severe personal injury or death.

I acknowledge this product must be installed by a qualified licensed contractor

Oversize and Heavy Item Shipping Fee

The item you are purchasing is either packaged in a very large box or is very heavy. These items tend to require special shipping and handling.

Here's how it works:

Order the new part from our website and pay for this shipping fee.

For large items such as washer tubs, and baskets, we may use a freight company to deliver the item to you. We will contact you with more information on such orders especially to schedule a delivery with the freight company. Very rarely do we ship these items with UPS or Fedex because they have size limitations on what the drivers can carry. Please pay close attention to your tracking # provided at the time of shipping.

For HEAVY items such as compressors and motors, we may use a freight company to deliver the item to you. We will contact you with more information on such orders especially to schedule a delivery with the freight company. Very rarely do we ship these items with UPS or Fedex because they have weight limitations on what the drivers can carry. Please pay close attention to your tracking # provided at the time of shipping.

If you have any questions please reach our parts specialists at 773-278-1300.

Find The Right Part. Right Now!
Heating Cooling Parts

Refundable Deposit (Core Refund) Information

The item you are purchasing has a deposit due at checkout. This is completely refundable when you return your “core” or “old part” back to us.

Here's how it works:

Order the new part from our website.
Print out your order confirmation along with our Core Return Form located on our website. Please include both with your core return. Download Core Fee Return Form
Mail the item back to our Chicago branch at this address: Heating Cooling Parts 2023 W Fullerton Ave Chicago IL 60647.
We will refund your credit card for the amount shown on your original invoice.

If you have any questions please reach our parts specialists at 773-278-1300.

Find The Right Part. Right Now!
Heating Cooling Parts