{"product_id":"dorman-904-625-hvac-pressure-switch","title":"Dorman 904-625 HVAC Pressure Switch","description":"\u003ch2\u003eReliable HVAC Pressure Switch for Chevrolet and GMC Vehicles\u003c\/h2\u003e\u003cp\u003eThe Dorman 904-625 HVAC Pressure Switch is designed specifically for select Chevrolet and GMC models, including Blazer, C1500, and Yukon. This pressure switch ensures accurate monitoring of your vehicle's air conditioning system pressure, helping maintain optimal HVAC performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOperates at 13 volts for consistent electrical performance\u003c\/li\u003e\n\u003cli\u003eCompatible with R134a refrigerant systems\u003c\/li\u003e\n\u003cli\u003ePressure limits: closes at 21 psi and opens at 44 psi\u003c\/li\u003e\n\u003cli\u003eMaximum pressure rating up to 500 psi for durability\u003c\/li\u003e\n\u003cli\u003eFeatures a black circular female connector with two male blade terminals\u003c\/li\u003e\n\u003cli\u003eConstructed with durable plastic and steel housing materials\u003c\/li\u003e\n\u003cli\u003eSpecific fit for Chevrolet and GMC models, including Blazer, C1500, and Yukon\u003c\/li\u003e\n\u003cli\u003eScrew-on mount type with 7\/16-20 thread diameter\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe Dorman 904-625 HVAC Pressure Switch is engineered to monitor refrigerant pressure within your vehicle’s air conditioning system accurately. Designed for use with R134a refrigerant, this switch activates or deactivates the compressor based on pressure thresholds—closing at 21 psi and opening at 44 psi—to protect the system from damage due to abnormal pressure levels. The switch operates at 13 volts and supports an amperage rating of 4.2 amps, ensuring reliable electrical compatibility with your vehicle’s HVAC system.\u003c\/p\u003e\u003cp\u003eIts housing combines plastic and steel materials for strength and resistance to environmental factors. The black circular female connector with two male blade terminals provides secure electrical connections. The screw-on mount with a 7\/16-20 thread diameter allows for straightforward installation on compatible vehicles.\u003c\/p\u003e\u003ch2\u003eCompatible Chevrolet and GMC Models\u003c\/h2\u003e\u003cp\u003eThis HVAC pressure switch is specifically designed for the following Chevrolet and GMC vehicles:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChevrolet Blazer\u003c\/li\u003e\n\u003cli\u003eChevrolet C1500 and C1500 Suburban\u003c\/li\u003e\n\u003cli\u003eChevrolet C2500 and C2500 Suburban\u003c\/li\u003e\n\u003cli\u003eChevrolet C3500\u003c\/li\u003e\n\u003cli\u003eChevrolet Jimmy\u003c\/li\u003e\n\u003cli\u003eChevrolet K1500 and K1500 Suburban\u003c\/li\u003e\n\u003cli\u003eChevrolet K2500 and K2500 Suburban\u003c\/li\u003e\n\u003cli\u003eChevrolet K3500\u003c\/li\u003e\n\u003cli\u003eChevrolet Yukon\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon HVAC Issues Addressed by This Pressure Switch\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePrevents compressor damage caused by low or high refrigerant pressure\u003c\/li\u003e\n\u003cli\u003eHelps maintain proper air conditioning system cycling\u003c\/li\u003e\n\u003cli\u003eProtects against system overpressure conditions\u003c\/li\u003e\n\u003cli\u003eEnsures reliable compressor engagement and disengagement\u003c\/li\u003e\n\u003cli\u003eImproves overall HVAC system efficiency and longevity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation requires removing the old pressure switch and screwing on the Dorman 904-625 switch using the 7\/16-20 thread. Ensure the electrical connector matches the black circular female connector on the switch. No mounting bracket is included, so use the existing mounting hardware. Verify system pressure is relieved before removal to avoid injury or damage.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDorman parts are manufactured to meet or exceed OEM specifications for fit and function. The 904-625 HVAC Pressure Switch undergoes rigorous quality control to ensure durability and reliable operation. Please refer to Dorman’s warranty policy for specific coverage details.\u003c\/p\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":52111224242357,"sku":"BKKY-904-625","price":61.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/RB_904625_Fro.jpg?v=1775160519","url":"https:\/\/www.partcatalog.com\/products\/dorman-904-625-hvac-pressure-switch","provider":"PartCatalog","version":"1.0","type":"link"}