{"product_id":"four-seasons-37819-hvac-cut-off-switch","title":"Four Seasons 37819 HVAC Cut-Off Switch","description":"\u003ch2\u003eFour Seasons 37819 HVAC Cut-Off Switch\u003c\/h2\u003e\u003cp\u003eThe Four Seasons 37819 pressure switch is a system-mounted HVAC cut-off switch built for low-pressure control in automotive air conditioning systems. It uses a black plastic and metal body with a female oval connector and 2 terminals for a direct replacement style installation.\u003c\/p\u003e\u003cp\u003eFor drivers searching for an HVAC pressure switch for Ford F-150, Chevy Silverado, or Dodge Ram applications, this Four Seasons Pressure Switch line provides an OE-style solution that meets or exceeds OEM requirements. The 37819 part number is also a useful cross-reference when comparing low cut-out pressure switch replacements.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLow cut-out HVAC pressure switch for system-mounted applications\u003c\/li\u003e\n\u003cli\u003eOperates at 40 psi on and 30 psi off\u003c\/li\u003e\n\u003cli\u003eFemale oval connector with 2 terminals\u003c\/li\u003e\n\u003cli\u003e7\/16 in. x 20 female thread size\u003c\/li\u003e\n\u003cli\u003eBlack plastic and metal construction\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds OEM specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThe Four Seasons 37819 is a pressure-operated HVAC cut-off switch used to monitor refrigerant system pressure and control compressor operation. Its low cut-out design helps manage system pressure thresholds by opening and closing the circuit at the specified psi range, supporting proper A\/C system function in vehicles that use a system-mounted pressure switch. If you are replacing a failed HVAC pressure switch on a Ford F-150, Chevy Silverado, or Dodge Ram, this part number 37819 is a direct reference point for the correct low-pressure switch style.\u003c\/p\u003e\u003cp\u003eThis Four Seasons Pressure Switch component is built with a female connector and oval plug shape for a secure electrical connection. The 7\/16 in. x 20 female fitting thread size and 2-terminal layout make it a practical replacement for many automotive HVAC service needs. This part cross-references FEL-PRO 1427 for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Problems This Part Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCompressor cycling caused by incorrect low-side pressure readings\u003c\/li\u003e\n\u003cli\u003eA\/C system shutdown from a failed pressure cut-off switch\u003c\/li\u003e\n\u003cli\u003eIntermittent compressor engagement due to worn switch contacts\u003c\/li\u003e\n\u003cli\u003eElectrical connection issues at the HVAC pressure switch connector\u003c\/li\u003e\n\u003cli\u003eReplacement needs for a leaking or damaged system-mounted switch\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the connector style, thread size, and pressure operating range before installation. Match the existing system-mounted location and confirm the vehicle uses a low cut-out pressure switch with 40 psi on and 30 psi off specifications. Always inspect the HVAC connector and sealing surfaces during replacement to help ensure proper electrical contact and refrigerant system operation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eThe Four Seasons 37819 is listed as meeting or exceeding OEM requirements, making it a dependable OE-style replacement for automotive HVAC service. Use the part number 37819 and the original switch specifications to confirm application details before ordering.\u003c\/p\u003e","brand":"Four Seasons","offers":[{"title":"Default Title","offer_id":51967374885045,"sku":"BBRN-37819","price":66.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/FS_37819_Fro.jpg?v=1775068137","url":"https:\/\/www.partcatalog.com\/products\/four-seasons-37819-hvac-cut-off-switch","provider":"PartCatalog","version":"1.0","type":"link"}