York 373-12894-705 Heat Exchanger

The York 373-12894-705 Heat Exchanger is a precision-engineered 5 tube heat exchanger designed for critical thermal transfer in residential and light commercial HVAC systems. This OEM York replacement part features a high-grade copper and aluminum construction, ensuring balanced thermal conductivity and resistance to thermal stress. As a veteran-grade furnace heat exchanger, it is built to 5-tube specifications to maximize the surface area for fluid-to-air heat transfer, directly impacting aggregate system performance. Technicians should note its approximate weight of 83 lbs and dimensions of 34" x 36" x 25", making it compatible with specific B2HN series units. Properly addressing York heat exchanger replacement is essential when diagnosing localized hotspots or draft inducer pressure switch trips. This HVAC replacement part restores the internal combustion integrity required for safe, high-efficiency operation without the risk of bypass leakage or carbon monoxide migration into the supply plenum.

• OEM Compatibility: Exact fit for popular York B2HN048N09906, B2HN048N09906A, and B2HN048N09906B models.
• Thermal Efficiency: 5-tube configuration optimizes the heat exchange surface area to improve overall fuel utilization.
• Heavy-Duty Construction: Built with robust materials capable of withstanding standard industrial operating pressures and temperatures.
• Efficient Installation: Engineered as a direct drop-in replacement to reduce labor time during complex furnace teardowns.

How do I identify a failing heat exchanger in a York unit?
Inspect the first pass of the tubes for pinholes, visible corrosion, or cracks. Secondary signs include unusual burner flame patterns (wavering) or the presence of soot in the burner compartment.

What causes premature failure in 5-tube exchangers?
Often, restricted airflow from dirty filters or mismatched blowers leads to overheating. High static pressure or improper gas manifold pressure can also cause excessive thermal expansion and contraction cycles.

Is this heat exchanger compatible with other brands?
This is an authentic York/Johnson Controls part. Cross-referencing the S1-373-12894-705 part number is required to ensure compatibility with Coleman and Luxaire equivalents.

This item must be shipped via trucking. Please contact us for a freight quote.

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.