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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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Armstrong

Armstrong

(5886 products)

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Up to 12% off

D251936-001 Armstrong Gasket-Stuff Box Vel 8.50X9.0

$51.06 USD ~~$58.29~~

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Up to 25% off

816303-055K Armstrong Imp Brass 4.25 Od 1.5B

$864.22 USD ~~$1,158.43~~

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Up to 25% off

874058-049K Armstrong Imp Brass 6.00 Od 1.5D

$875.09 USD ~~$1,173.00~~

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Up to 25% off

816302-053K Armstrong Imp Brass 4.50 Od 1B

$983.80 USD ~~$1,318.71~~

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Up to 25% off

880000-044K Armstrong Kit Filter-Flow Ind-4200H-90

$2,955.94 USD ~~$3,962.21~~

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Up to 25% off

816302-323K Armstrong Imp Universal 4.50 Od 1B

$716.56 USD ~~$960.50~~

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Up to 25% off

89975001-87306K Armstrong Sealkit Impdia152.1Ssc-Sscwg

$1,263.73 USD ~~$1,693.93~~

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Up to 25% off

804133-841 Armstrong Casing Lfb S-55 S-57

$3,035.64 USD ~~$4,069.07~~

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Up to 25% off

880000-045K Armstrong Kit Filter-Flow Ind-4200H-112

$2,955.94 USD ~~$3,962.21~~

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Up to 25% off

816302-055K Armstrong Imp Brass 4.25 Od 1B

$983.80 USD ~~$1,318.71~~

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Up to 25% off

880103-004 Armstrong Kit-Od Depm2-Drip Cvr F90

$675.80 USD ~~$905.86~~

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Up to 25% off

D251904-011 Armstrong Shaft Stl 28Lg Hsc Grp-M

$2,348.08 USD ~~$3,147.43~~

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Up to 25% off

89975001-83703K Armstrong Sealkit Impdia101.6Ssc-Sscwg

$689.39 USD ~~$924.07~~

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Up to 26% off

89975000-924K Armstrong Seal-Kit 0.750 2A Acssc316Epdm

$324.72 USD ~~$439.57~~

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Up to 27% off

880000-006K Armstrong Rep 880000-006 Kit 2A Seal & Blk 5 Imp

$410.24 USD ~~$564.64~~

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Up to 25% off

8427736-000K Armstrong Kit Cpl Splt 1-78X1-58 1.375

$1,674.09 USD ~~$2,244.00~~

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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.
All brand names and logos are property of their respective owners and are used for identification purposes only.

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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