Nordyne 661057R Orifice preventing the common "popping" or

preventing the common "popping" or delayed ignition issues associated with generic parts

ensuring dependable operation of the solenoid in the safety shutoff valve

it is fully compatible with high-volume output models like the T-4002

This is a standard #45 drill size orifice calibrated for natural gas applications in specific furnace models

Nordyne 661057R Orifice preventing the common "popping" orThe Nordyne 661057R is a critical OEM replacement part designed for precision fuel metering in high efficiency heating systems. Featuring a . 057 orifice diameter, this LP burner orifice is engineered to maintain the correct gas to air ratio for Liquid Propane applications. It serves as the direct replacement for Nordyne 661057, ensuring seamless integration into N Series burner manifolds commonly found in Intertherm burner systems, Miller furnaces,