OEM Part Finder
Identify the correct OEM replacement part for your HVAC system. Search by brand, model number, part type, or part number to find compatible components.
To find an OEM HVAC replacement part: (1) Locate your unit's model number on the nameplate (typically on the side panel or inside the access door), (2) identify the part type you need (capacitor, contactor, control board, filter, motor, etc.), (3) search by brand and model number below or contact our parts team directly at 866-330-1709. Always use OEM parts to maintain warranty coverage and ensure proper fit.
Step 1 — Search for Your Part
Enter your equipment brand, model number, and the type of part you need. The finder will display common OEM part numbers, compatibility notes, and direct links to available inventory.
Find your model number on the equipment nameplate (typically on the side panel, inside the access door, or on the back of the unit).
How to Find Your Equipment Model Number
The model number is the most important piece of information when ordering OEM replacement parts. It identifies the exact equipment configuration, production year, and compatible components. Here is where to find it on common HVAC equipment types:
Central Air Conditioner / Heat Pump (Outdoor Unit)
Look on the side panel of the outdoor condenser unit. The nameplate is typically a silver or white label with the model number, serial number, voltage, and refrigerant type. It is usually located near the electrical access panel.
Air Handler / Furnace (Indoor Unit)
Open the front access panel. The nameplate is typically on the inside of the door or on the blower compartment. For furnaces, check the inside of the burner access door.
Mini Split (Indoor Head Unit)
Remove the front cover panel (lift from the bottom). The nameplate is on the chassis behind the filter. For wall-mounted units, it may also be on the right side of the unit near the refrigerant connections.
Commercial Ice Machine
Open the front door and look on the inside of the door frame or on the evaporator compartment wall. The nameplate includes the model number, serial number, ice production capacity, and electrical specifications.
Rooftop Unit (RTU)
The nameplate is on the exterior cabinet, typically near the main electrical access panel or on the curb-side panel. For large commercial RTUs, the nameplate may be inside the main access door.
Boiler / Hydronic System
Look on the front or side of the boiler cabinet. The nameplate is typically near the gas valve or burner assembly. For older boilers, the model number may be stamped directly into the cast iron sections.
Common OEM Part Identification Guide
Understanding what each HVAC component does helps you identify the correct replacement part. The table below covers the most frequently replaced OEM components, their function, and key identification information.
| Part Type | Function | Key Specs to Match | Common Failure Symptoms |
|---|---|---|---|
| Run Capacitor | Provides starting torque and improves running efficiency for compressor and fan motors | Capacitance (µF), voltage rating (VAC), terminal configuration | Unit hums but won't start; motor overheating; compressor hard-starting |
| Contactor | Electrically controlled switch that connects power to the compressor and condenser fan | Pole configuration (1-pole, 2-pole), coil voltage (24V), amp rating | Unit won't turn on; contactor pitted or burned; unit won't shut off |
| Control Board | Main circuit board that controls all system functions and communicates with thermostat | OEM part number (exact match required); board revision number | Erratic operation; error codes; unit won't respond to thermostat |
| Blower Motor | Circulates conditioned air through the duct system | HP, RPM, voltage, frame size, rotation direction, shaft diameter | Weak airflow; motor noise; unit runs but no air movement |
| Condenser Fan Motor | Draws air through the outdoor condenser coil to reject heat | HP, RPM, voltage, rotation direction, shaft length and diameter | Outdoor unit overheating; fan not spinning; high head pressure |
| Hot Surface Ignitor | Ignites the gas burner in a furnace | Wattage, voltage, mounting configuration, OEM part number | Furnace won't ignite; no heat; ignitor glows but burner doesn't light |
| Gas Valve | Controls gas flow to the furnace burners | Gas type (natural/LP), inlet/outlet size, coil voltage (24V), OEM part number | No heat; gas smell; furnace lights then shuts off immediately |
| TXV / Expansion Valve | Meters refrigerant flow into the evaporator coil | Refrigerant type, tonnage/capacity, external equalizer (yes/no), OEM part number | Icing on evaporator; low suction pressure; poor cooling performance |
| Pressure Switch | Safety device that monitors gas pressure or refrigerant pressure | Open/close pressure setpoints, port size, normally open/normally closed | Furnace lockout; system won't start; pressure switch fault code |
| Draft Inducer Motor | Pulls combustion gases through the heat exchanger and out the flue | HP, RPM, voltage, rotation direction, OEM part number | Furnace won't ignite; pressure switch fault; unusual noise before ignition |
Frequently Asked Questions
OEM (Original Equipment Manufacturer) parts are made by or for the original equipment manufacturer to the exact specifications of the unit. Aftermarket parts are made by third-party manufacturers and may not meet the same tolerances, materials, or performance standards. Using OEM parts maintains your warranty coverage, ensures proper fit and function, and is required by most manufacturers for warranty repairs.
The most reliable method is to match the OEM part number from your unit's technical documentation (installation manual, parts list, or service manual). The part number is typically printed on the existing component's label. If the part number is not visible, use your unit's model number and serial number to look up the correct part in the manufacturer's parts catalog. Our team at 866-330-1709 can assist with parts lookup for most major brands.
HVACProSales focuses primarily on complete HVAC systems, equipment, and major components. For specific OEM replacement parts, we recommend contacting our team directly at 866-330-1709 or support@hvacprosales.com with your model number and part type. We can advise on availability and direct you to the appropriate source.
Yes. HVACProSales ships to international buyers through licensed U.S. freight forwarders. International buyers should review our International Buyers & Export Program page for details on the purchasing process, voltage compatibility considerations, and warranty limitations. Note that OEM parts for U.S.-spec equipment may not be compatible with equipment manufactured for other markets.
When requesting a parts quote, please have the following ready: (1) Equipment brand and model number, (2) equipment serial number (helps identify production date and configuration), (3) the OEM part number if visible on the existing component, (4) the type of part needed, and (5) quantity required. The more information you can provide, the faster our team can identify the correct part and confirm availability.
Can't Find Your Part? Our Team Can Help.
Our parts specialists can identify compatible OEM components for most major HVAC brands. Contact us with your model number and part description.
Call 866-330-1709 Email Parts Request