{"product_id":"four-seasons-20928-a-c-trinary-switch","title":"Four Seasons 20928 A\/C Trinary Switch","description":"\u003ch2\u003eFour Seasons 20928 Trinary Pressure Switch\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Pressure Switch 20928 is a system-mounted A\/C trinary switch built for 12-volt HVAC systems. It monitors refrigerant pressure and helps control compressor and fan operation in Toyota, Lexus, Acura, and Chevrolet Prizm applications.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSystem-mounted trinary pressure switch for A\/C clutch and compressor control\u003c\/li\u003e\n\u003cli\u003e12-volt design with 4-pin terminal layout and male connector\u003c\/li\u003e\n\u003cli\u003eFemale M11 x 1.00 threaded fitting for direct system installation\u003c\/li\u003e\n\u003cli\u003ePressure operating points: low on 37 psi, low off 32 psi, medium on 225 psi, medium off 185 psi, high on 370 psi, high off 440 psi\u003c\/li\u003e\n\u003cli\u003eSteel construction with Weather Pack sealing\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds OEM requirements\u003c\/li\u003e\n\u003cli\u003eFour Seasons 20928 cross-references UAC SW9726C for the same application\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eThis Four Seasons Pressure Switch line is built for HVAC pressure management in vehicles that use a trinary switch to protect the compressor and regulate condenser fan response. Part number 20928 is used in a wide range of import and domestic applications, including 1994-2001 Toyota Camry, 1996-2000 Toyota RAV4, 1995-2005 Lexus GS300, and 1996-2004 Acura RL. It also serves other Toyota and Lexus platforms such as the Corolla, Celica, Supra, ES300, LS400, SC400, and Sienna, along with the Chevrolet Prizm.\u003c\/p\u003e\u003cp\u003eCompatible vehicle coverage includes long-tail searches such as Toyota Camry A\/C trinary pressure switch replacement, Lexus GS300 HVAC pressure switch, and Acura RL compressor pressure switch. The Four Seasons 20928 is a direct-fit style pressure switch for systems that require the specified M11 x 1.00 threaded connection and 4-terminal electrical interface.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eA\/C compressor cycling caused by incorrect refrigerant pressure readings\u003c\/li\u003e\n\u003cli\u003eCondenser fan control issues tied to pressure switch failure\u003c\/li\u003e\n\u003cli\u003eHigh-pressure cutoff faults in the HVAC system\u003c\/li\u003e\n\u003cli\u003eLow-pressure cutoff conditions that interrupt compressor operation\u003c\/li\u003e\n\u003cli\u003eIntermittent A\/C performance on Toyota, Lexus, Acura, and Chevrolet Prizm vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the connector style, terminal count, and M11 x 1.00 fitting before installation. This switch is system mounted and uses a female threaded fitting with a male electrical connector, so matching the original configuration is important for proper operation. Confirm vehicle-specific fitment for the exact year and model, including the 1998-2003 Toyota Sienna note that excludes Tow Package vehicles.\u003c\/p\u003e\u003cp\u003eFor best results, compare the original switch’s pressure thresholds and connector layout to the replacement part before service. Four Seasons 20928 is commonly searched as an A\/C pressure switch for Toyota Camry, Lexus ES300, and Acura TL HVAC repair.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eFour Seasons lists this pressure switch as meeting or exceeding OEM requirements. The steel housing, Weather Pack sealing, and OE-style electrical and pressure specifications support consistent HVAC system operation across the listed applications.\u003c\/p\u003e","brand":"Four Seasons","offers":[{"title":"Default Title","offer_id":44592393781429,"sku":"BBRN-20928","price":64.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/FS_20928_Fro_419faf7e-98d3-460f-8334-fb7e79abfcad.jpg?v=1775067602","url":"https:\/\/www.partcatalog.com\/products\/four-seasons-20928-a-c-trinary-switch","provider":"PartCatalog","version":"1.0","type":"link"}