81W03 – CONTROL BOARD*
Lennox 81W03 ignition control board. OEM replacement for Lennox furnaces. Manages ignition sequence and heating cycles. Replaces 75M17 and 78M47.
Walk in. We test every part free at the counter. Open to homeowners, contractors, and multifamily — no account or minimum order.
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Ten departments, organized the way our counter is. Every category is on the shelf today.
Bring your old part. We'll diagnose it, find the replacement, and bench-test the new one at the counter before you leave — so you only make one trip.

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Lennox 81W03 ignition control board. OEM replacement for Lennox furnaces. Manages ignition sequence and heating cycles. Replaces 75M17 and 78M47.

Goodman 15 kW electric heat kit with built-in circuit breaker. Adds supplemental or emergency heat to Goodman/Amana air handlers. Part #HKTSD15XB.

15′ insulated mini-split line set with pre-flared 1/4″ and 3/8″ copper lines. 1/2″ insulation. Ready to install — no flaring tool needed.

1/3-1/5 HP 2-speed condenser fan motor, 1075 RPM, 208-230V, 5 MFD cap. Ball bearings with reversible rotation. Fits multiple residential condensers.

Manual reset micro limit switch, opens at 220°F. Push-button reset after trip. Universal replacement — fits most furnaces and heaters using a micro-base L220 switch.

10″ x 10″ counter-clockwise blower wheel with concave blades and 1/2″ bore. OEM Goodman part. Replaces Rheem 70-23110-30.

1/4 HP furnace blower motor, 120V, 1075 RPM, 3-speed reversible. Requires 10 MFD capacitor. Budget-friendly option for smaller furnaces and air handlers.

Irwin IRHT81736 ratcheting tubing cutter. Cuts copper, brass, PVC, and aluminum from 1/4″ to 1-1/8″ OD. Ratchet action for tight spaces.

Aprilaire 213 replacement filter. MERV 13, 20x25x4. Traps dust, pollen, mold spores, and pet dander. Fits Aprilaire 2210, 2216, 3210, and 4200 whole-house air cleaners.

14″W x 6″T return air grille with fixed louver blades. White powder-coated steel. Mounts on wall or ceiling over your return duct opening.