White-Rodgers 21D64-2 Ignitor Kit

The White-Rodgers 21D64-2 is a robust 120V silicon nitride ignitor upgrade kit engineered for high-durability performance in residential gas furnaces. Designed to replace standard silicon carbide (flat or spiral) ignitors, this kit features a high-density silicon nitride heating element that offers superior resistance to oxidation and mechanical shock compared to traditional carbide components. Professionals often utilize the 21D64-2 for furnace ignitor replacement across multiple OEM brands due to its versatile mounting capabilities. The kit includes the universal nitride ignitor, two specialized mounting brackets, ceramic wire nuts, and a furnace label to ensure a clean, code-compliant installation. As a direct successor that replaces White-Rodgers 21D64-1, this unit ensures reliable ignition cycles in demanding environments. It is a critical stock item for technicians performing HVAC furnace repair where fast, consistent thermal response is required to meet sequence of operation timings.

• Universal Compatibility: Includes multiple brackets to adapt to diverse burner box configurations, simplifying hot surface ignitor retrofits.
• Enhanced Durability: The silicon nitride construction minimizes service calls by resisting handle-related fractures and carbon buildup.
• Complete Install Kit: Comes with ceramic wire nuts and an instruction booklet to facilitate secure electrical terminations and proper positioning.
• Direct Replacement: Specifically designed to replace the 21D64-1 and common carbide units without requiring complex control board modifications.

Can this kit replace a spiral carbide ignitor?
Yes, the 21D64-2 is specifically designed as a universal 120V nitride upgrade for both flat and spiral silicon carbide ignitors.

Are special tools required for the conversion?
Standard technician hand tools are sufficient; the kit provides the necessary brackets and ceramic nuts to adapt to the existing burner bracket.

Does this unit require a specific voltage?
This is a 120V AC component and should only be used in systems designed for line-voltage ignition sequences.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.