Lennox 10M51 Pressure Switch 320074-702 The lead-free DZR brass construction

The lead-free DZR brass construction meets the requirements for safe use in potable water systems

OEM Compatibility: A direct-fit York HVAC part that saves time on the truck by matching factory mounting points and terminal positions

a high-performance rubber mounted cartridge ball bearing engineered for heavy-duty HVAC applications

Optimized Efficiency: The PSC motor design ensures stable amperage draw and reliable starting torque under load

8401-006BX is the cross of S8401-006

Lennox 10M51 Pressure Switch 320074-702 The lead-free DZR brass constructionThe Lennox 10M51 Pressure Switch is a high limit safety control engineered for demanding refrigeration and air conditioning applications. This OEM Lennox replacement part features a Single Pole Double Throw (SPDT) contact configuration, offering versatile electrical integration for monitoring system critical points. Factory calibrated to actuate at 450 PSI, the 10M51 provides essential protection against overpressure conditions that can lead to