{"product_id":"vintage-air-trinary-pressure-switch-11086-vus-3-8-24-thread-with-o-ring-high-low-a-c-protection","title":"Vintage Air Trinary Pressure Switch 11086-VUS 3\/8\"-24 Thread with O-Ring — High\/Low A\/C Protection","description":"\u003cstrong\u003eVintage Air 11086-VUS is a trinary pressure switch with O-ring designed to replace standard drier-mounted switches and protect your A\/C system by monitoring high and low refrigerant pressures.\u003c\/strong\u003e\n\nThis replacement trinary switch fits common drier ports and uses a 3\/8\"-24 male thread for a straightforward install. Supplied with a sealing O-ring, the 11086-VUS accepts universal fit applications and is intended to work with aftermarket and OEM receivers\/driers (drier unit not included). The switch provides electrical control for compressor cycling and safety cutouts when pressure thresholds are reached.\n\n\u003ch3\u003eHow does this trinary switch integrate with my A\/C drier?\u003c\/h3\u003e\n\u003cp\u003eThe 11086-VUS mounts directly into the receiver\/drier using a standard 3\/8\"-24 male thread, replacing the existing pressure sensor. Installation requires proper sealing with the supplied O-ring and matching port size. Electrical connectors attach to the vehicle harness to restore pressure-based control functions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThread size: 3\/8\"-24 male for common drier ports\u003c\/li\u003e\n  \u003cli\u003eIncludes O-ring for a leak-resistant seal\u003c\/li\u003e\n  \u003cli\u003eReplaces drier-mounted trinary switches in universal-fit setups\u003c\/li\u003e\n  \u003cli\u003eDrier unit must be present but is not included with the switch\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat does the trinary switch actually do for performance and safety?\u003c\/h3\u003e\n\u003cp\u003eThe trinary switch senses both high and low refrigerant pressures and controls the A\/C compressor accordingly. By opening or closing circuits at preset pressure points, it prevents compressor damage from excessively low charge or dangerously high pressure. This component helps maintain system reliability and reduces the chance of costly compressor failures.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMonitors high- and low-pressure conditions\u003c\/li\u003e\n  \u003cli\u003eCuts compressor engagement to prevent damage\u003c\/li\u003e\n  \u003cli\u003eSupports vehicle A\/C safety and longevity\u003c\/li\u003e\n  \u003cli\u003eActs as a replacement for factory trinary devices\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat do I need to know before buying and installing the 11086-VUS?\u003c\/h3\u003e\n\u003cp\u003eConfirm your receiver\/drier port is compatible with a 3\/8\"-24 male threaded switch and that your vehicle’s electrical connectors match the switch terminals. The product ships with an O-ring but not the drier, so plan to install it into an existing or new receiver\/drier. Basic tools and an understanding of A\/C system evacuation and recharge procedures are required for a correct, leak-free installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify drier port thread and electrical connector compatibility\u003c\/li\u003e\n  \u003cli\u003eO-ring included; drier not supplied\u003c\/li\u003e\n  \u003cli\u003eRecommended: professional A\/C service for evacuate\/recharge\u003c\/li\u003e\n  \u003cli\u003ePackage dimensions: 6.75 x 11.72 x 8.44 inches; weight 3.19 lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable and reliable is this Vintage Air switch?\u003c\/h3\u003e\n\u003cp\u003eThe 11086-VUS is produced for universal aftermarket applications and built to meet the practical demands of vehicle A\/C systems. While components originate from China, Vintage Air parts are packaged and specified for dependable replacement use. Proper installation and correct system service practices are key to long-term performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eManufactured for universal aftermarket fitment\u003c\/li\u003e\n  \u003cli\u003ePackaging suitable for single-part shipping and storage\u003c\/li\u003e\n  \u003cli\u003eDesigned to withstand typical automotive A\/C operating conditions\u003c\/li\u003e\n  \u003cli\u003eWorks as a direct drier-mounted replacement switch\u003c\/li\u003e\n\u003c\/ul\u003e\n\nWho is this for?\n\nThis trinary switch is aimed at automotive technicians, restoration builders, and DIY mechanics who need a direct replacement for a drier-mounted pressure switch. If you’re installing or servicing an A\/C receiver\/drier and require a 3\/8\"-24 threaded trinary switch with a sealing O-ring, the Vintage Air 11086-VUS is a practical, universal-fit option. For safety and warranty reasons, have a qualified technician handle refrigerant evacuation and recharge when replacing pressure-sensing components.\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the 11086-VUS include the receiver\/drier?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No, the 11086-VUS includes the trinary switch and O-ring only; the receiver\/drier is not supplied.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What thread size does this switch use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The switch uses a 3\/8\"-24 male thread compatible with many receiver\/drier ports.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Vintage Air","offers":[{"title":"Default Title","offer_id":67586738094265,"sku":"B005JVOBFK","price":126.73,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/vintage-air-trinary-switch-front-view.jpg?v=1790491914","url":"https:\/\/redleafauto.ca\/products\/vintage-air-trinary-pressure-switch-11086-vus-3-8-24-thread-with-o-ring-high-low-a-c-protection","provider":"Redleaf Auto","version":"1.0","type":"link"}