Nordyne 151888R Orifice

The Nordyne 151888R Orifice is a high-precision HVAC replacement part designed specifically for gas furnace inducer assembly applications. As a veteran-grade combustion motor orifice, this component maintains the critical air-to-fuel ratio required for efficient combustion system performance. Measuring approximately 1.75 inches in diameter, the Nortek 151888R acts as a calibrated restrictor that regulates the volume and velocity of airflow through the draft inducer. If your client's unit is running hot or triggering the limit switch, a restricted or incorrect inducer orifice is a likely culprit. Engineered from high-grade metal to withstand high-temperature furnace environments, this OEM replacement orifice ensures stable flame quality and prevents the inefficiencies associated with fluctuating gas flow. Proper integration of this combustion motor component is essential for contractors aiming to restore residential heating systems to factory-spec efficiency while reducing nitrogen oxide emissions and maximizing fuel utilization.

• Precision Airflow Regulation: Optimizes the velocity of the combustion motor stream to ensure stable ignition.
• Durable Construction: Heavy-duty metal housing designed to resist thermal stress within the draft inducer assembly.
• OEM Compatibility: Exact-fit engineering for Nordyne and Nortek furnaces to eliminate guesswork during installation.
• System Protection: Helps prevent high-limit switch tripping by maintaining correct inducer motor pressure.

• How do I know if the 151888R orifice needs replacement? Look for signs of carbon buildup, physical warping from heat, or if the furnace is frequently tripping its thermal limit due to restricted inducer airflow.
• Is this compatible with LP or Natural Gas systems? This combustion orifice specifically regulates air volume in the inducer assembly; always verify your burner's gas furnace orifice size separately for fuel-specific conversions.
• Does this part fit older Miller or Intertherm furnaces? Yes, the 151888R is a common replacement part for various Nortek brands, including Miller, Intertherm, and Broan inducer assemblies.

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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.