Lennox

Lennox Furnace Parts & HVAC Replacement Parts

Shop Lennox furnace parts and HVAC replacement components for maintaining and repairing compatible Lennox heating equipment. MasterBuilder Mercantile carries Lennox replacement parts including draft inducer blowers, pressure switches, hot surface igniters, control components, motors, sensors and other furnace parts.

Browse our complete Lennox parts collection, or go directly to our Lennox furnace parts selection.

Popular Lennox Furnace Parts

Some of our popular Lennox replacement parts include draft inducer blower assemblies, furnace pressure switches and hot surface igniters. If you know the part number from your existing furnace component, you can go directly to the replacement part below.

• Lennox 93W13 Draft Inducer Blower Assembly – alternate replacement part numbers include 73W44, LB-94724AE and LB-94724Y.
• Lennox 14A45 Pressure Switch – alternate replacement part number 104549-03.
• Lennox 57W79 0.70" WC Pressure Switch – alternate replacement references include 57W7901, 101432-14 and 10143214.
• Lennox 70W16 Hot Surface Igniter – alternate replacement part number LB-112237B.

Lennox Furnace Replacement Parts

Lennox furnaces use model-specific electrical, ignition, airflow and safety components. When servicing an existing furnace, identifying the original Lennox part number and furnace model is one of the best ways to locate the correct replacement component.

Our Lennox furnace parts selection includes components such as:

• Draft inducer and combustion blower assemblies
• Furnace control boards and ignition controls
• Pressure switches
• Hot surface igniters
• Flame sensors
• Blower and inducer motors
• Limit switches and safety controls
• Temperature and HVAC sensors
• Relays, switches and electrical components

Browse all available Lennox furnace replacement parts in our Furnace Parts collection.

Lennox Draft Inducers & Blower Assemblies

Draft inducer and combustion blower assemblies are important components in compatible Lennox furnaces. Replacement assemblies should be matched using the original manufacturer part number along with the furnace model, electrical specifications and mounting configuration.

One of our popular replacements is the Lennox 93W13 combustion air and draft inducer blower assembly, which is also associated with several alternate replacement part numbers.

Lennox Furnace Pressure Switches

Furnace pressure switches monitor pressure conditions within compatible heating equipment and are selected according to the requirements of the specific furnace. Pressure ratings and equipment compatibility should be verified before replacing an existing switch.

Popular Lennox replacements include the Lennox 14A45 pressure switch and the Lennox 57W79 0.70" WC pressure switch.

Lennox Hot Surface Igniters & Ignition Parts

Lennox furnace ignition systems use model-specific igniters, sensors and controls. When replacing an ignition component, verify the manufacturer part number and compatible furnace model before ordering.

The Lennox 70W16 hot surface igniter is one of the Lennox furnace ignition components available from MasterBuilder Mercantile.

Lennox Furnace Control Boards & Controls

Lennox furnace control boards and ignition controls manage important operating functions within compatible heating equipment. Replacement boards can be specific to a furnace model or series, and manufacturers may revise or supersede controls over the life of the equipment.

When replacing a Lennox control board or other electrical control, verify the complete manufacturer part number and furnace model rather than selecting a replacement based only on appearance.

Finding the Correct Lennox Furnace Part

If you already know the Lennox part number, use our search function to locate the component directly. Part numbers are included in our product titles wherever available to make replacement components easier to identify.

If the original part number is unavailable, locate the model and serial information on the furnace. Compare the equipment model, electrical specifications, dimensions and connections with the replacement component before ordering.

Some older Lennox components may have been discontinued or superseded by newer replacement part numbers. In these cases, review the current replacement information and compatibility details before installation.

Shop Lennox Furnace Parts Online

MasterBuilder Mercantile supplies Lennox furnace and HVAC replacement parts to contractors, service technicians, property managers and customers throughout Canada and the United States.

Browse our complete Lennox collection, shop specifically for Lennox furnace parts, or explore our complete furnace parts and replacement components collection.