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WHERE'S MY MODEL NUMBER?

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

(5876 products)

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R101432-15 Armstrong Furnace -.85"Wc Spst Pressure Switch

$39.79 USD

Limited Stock Available

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R76794300 Armstrong Furnace Liq Line Stub

$20.69 USD

Limited Stock Available

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R40154B025 Armstrong Furnace L130F-30 Limit Switch

$115.31 USD

Limited Stock Available

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R110070005 Armstrong Furnace L145-40F Limit Switch

$34.13 USD

Limited Stock Available

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R43110-002 Armstrong Furnace Ignition Module

$318.69 USD

Limited Stock Available

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R76734700 Armstrong Furnace 208-240V-Pri 24V-Sec 40Va Tran

$40.60 USD

In Stock

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R43203-002 Armstrong Furnace Hsi Ignitor

$73.39 USD

Limited Stock Available

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H2TXV02 Armstrong Furnace Expansion Valve

$222.67 USD

Limited Stock Available

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R07489B003 Armstrong Furnace 24V Relay

$148.44 USD

Limited Stock Available

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R06428D455 Armstrong Furnace Inducerblowerkit W/Pressswitch

$340.07 USD

In Stock

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C3510-12 Armstrong International Airvent, 3/4", 300Psi

$359.85 USD

Limited Stock Available

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805188-111K Armstrong Fluid Technology Flange Set/Hrdwr Kit 3" Ci

$163.24 USD

Limited Stock Available

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D500631 Armstrong International 3/4" 21-Ar Air Vent 133# 5/64"

$552.23 USD

Limited Stock Available

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HD110108-200 Armstrong Fluid Technology S-45 Ls/Volute W/Viton Seal

$601.42 USD

Limited Stock Available

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R100306-02 Armstrong Furnace .3"Wc Pressure Switch

$64.95 USD

Special Order

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30B3 Armstrong International 3/4" F & T 30# Seat

$557.12 USD

Special Order

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Heating Cooling Parts

2023 W Fullerton Ave

Chicago, IL 60647

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Mon-Fri: 8:00AM - 5:30PM

Sat: 9:30AM - 2:00PM

Sun: Closed

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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