Rheem-Ruud 62-21743-05 Pilot Burner Assembly

The Rheem-Ruud 62-21743-05 Pilot Burner Assembly is a precision-engineered OEM replacement part designed for high-performance natural gas furnace ignition systems. Built to withstand the rigorous cycling of residential and commercial Rheem-Ruud heating systems, this assembly features a stainless steel construction that resists oxidation and thermal fatigue. It comes equipped with a pre-installed .018-inch natural gas pilot orifice (Part # 62-19640-04), ensuring a stable and consistent pilot flame for reliable main burner light-off. As a direct-fit component, the 62-21743-05 eliminates the guesswork of universal retrofits, maintaining the correct spatial relationship between the igniter and the burner transition. For technicians servicing "pilot outage" symptoms or intermittent furnace ignition failures, this pilot assembly with orifice provides the exact millivolt output and flame geometry required for modern HVACR safety controls. This genuine Rheem furnace part is essential for restoring factory-spec combustion efficiency and system reliability during emergency repairs.

Key Benefits:

• OEM Compatibility: Designed specifically for Rheem and Ruud natural gas appliances to ensure precise fitment and connector alignment.
• Factory-Calibrated Orifice: Includes a .018" NG orifice for consistent fuel-to-air ratios and a steady, non-wavering flame.
• Direct Replacement: Simplifies the HVAC repair process by utilizing original mounting points and hardware configurations.
• Durable Construction: High-grade metallic components handle high-temperature exposure without warping or cracking.
• Reliable Ignition: Optimizes burner assembly performance to prevent "no-heat" calls caused by fouled or degraded pilot burners.

Common Questions:

Does this assembly include the pilot orifice?
Yes, the 62-21743-05 comes with the natural gas orifice pre-installed, ensuring the correct BTU output for the pilot flame upon installation.

Will this work for a Propane (LP) furnace?
No, this specific model is calibrated for Natural Gas (NG). Using this in an LP system without the correct LP orifice conversion can lead to unsafe combustion and soot buildup.

Why is my pilot light flickering or orange instead of blue?
An orange flame typically indicates a clogged orifice or carbon buildup. Replacing the entire pilot burner assembly ensures a clean, blue, high-velocity flame for proper sensor rectification.

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.