Resideo Q345A1321 Furnace Pilot Burner for Natural Gas

Restore your Furnace's performance with the genuine OEM Resideo Q345A1321 — the factory-certified replacement that fits perfectly and lasts.

Provides reliable, electronic ignition for gas appliances, replacing the constant gas consumption of a standing pilot light. When the thermostat calls for heat, 120V energizes the igniter element, raising it to ignition temperature. The control board then opens the gas valve, and the hot element ignites the gas. Installing this certified OEM part ensures your Furnace operates exactly as designed, protects your investment, and avoids the reliability risks of aftermarket alternatives.

Product Details

• Product Type: Hot Surface Igniter / Pilot Burner
• Compatibility: Compatible with major appliance and HVAC brands including Whirlpool, Samsung, LG, Carrier, Rheem, Goodman, Trane, and York.
• Manufacturer: Resideo — Genuine OEM Original Part
• Common Symptoms Fixed: Replace if the furnace or oven clicks and the gas valve opens but no flame is established, if the igniter glows orange instead of bright white, or if it is visibly cracked

Part# Q345A1321 Replaces the Following:

WPQ345A1321, AP451321

Key Features

Genuine OEM Quality: The Resideo Q345A1321 is an authentic factory-original part, guaranteeing a perfect fit and optimal performance without the guesswork of aftermarket alternatives. Every dimension, connector, and operating specification matches the original exactly.

Restored Performance: Provides reliable, electronic ignition for gas appliances, replacing the constant gas consumption of a standing pilot light. This replacement part brings your Furnace back to factory-specified performance levels so you can rely on it every day.

Durable Construction: Built to the same exacting standards as the original component, this part is engineered to withstand the thermal cycling, vibration, and mechanical stresses of daily furnace use — delivering years of reliable service.

Easy Installation: Designed as a direct plug-in replacement with identical connectors, dimensions, and mounting points as the original. No modifications, adapters, or special tools required.

Wide Compatibility: While manufactured by Resideo, this part is compatible with appliances across multiple brands including major appliance and HVAC brands including Whirlpool, Samsung, LG, Carrier, Rheem, Goodman, Trane, and York. One part number solves the problem across a wide range of models.

Don't let a failed hot surface igniter / pilot burner disrupt your daily routine any longer. Order the Resideo Q345A1321 today and restore your Furnace to peak performance — with the confidence that only a genuine OEM part can deliver.