{"product_id":"four-seasons-39702-a-c-expansion-valve","title":"Four Seasons 39702 A\/C Expansion Valve","description":"\u003ch2\u003eFour Seasons 39702 Expansion Valve\u003c\/h2\u003e\u003cp\u003eFour Seasons 39702 is a block-type A\/C expansion valve for R134A systems. Built from aluminum and engineered to meet or exceed OEM requirements, it is a direct replacement for select Buick Encore GX and Chevrolet Trailblazer applications.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: Four Seasons Expansion Valve\u003c\/li\u003e\n\u003cli\u003ePart number: 39702\u003c\/li\u003e\n\u003cli\u003eBlock-type A\/C expansion valve for HVAC flow control\u003c\/li\u003e\n\u003cli\u003eAluminum construction for mobile A\/C service\u003c\/li\u003e\n\u003cli\u003eRefrigerant type: R134A\u003c\/li\u003e\n\u003cli\u003eLiquid inlet: No. 6 with sealing washer\u003c\/li\u003e\n\u003cli\u003eLiquid outlet: No. 8 with sealing washer\u003c\/li\u003e\n\u003cli\u003eSuction inlet: No. 10 with sealing washer\u003c\/li\u003e\n\u003cli\u003eSuction outlet: No. 10 with sealing washer\u003c\/li\u003e\n\u003cli\u003eStyle: w\/o solenoid\u003c\/li\u003e\n\u003cli\u003eMounting hardware included: Yes\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds OEM specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eFour Seasons 39702 is part of the Expansion Valve line, a product family focused on precise refrigerant metering for automotive air conditioning systems. This valve helps regulate refrigerant flow through the evaporator circuit, supporting stable cabin cooling performance in R134A-equipped vehicles. It is listed for 2020-2024 Buick Encore GX and 2021-2024 Chevrolet Trailblazer applications, making it a fitment-based replacement for common compact SUV HVAC service needs. The part number 39702 is also referenced under cross-application numbers 217722 and 42699689 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWeak or inconsistent A\/C cooling output\u003c\/li\u003e\n\u003cli\u003eImproper refrigerant metering at the evaporator\u003c\/li\u003e\n\u003cli\u003eTemperature fluctuations from a worn expansion valve\u003c\/li\u003e\n\u003cli\u003eHVAC performance issues after A\/C system service\u003c\/li\u003e\n\u003cli\u003eLeak-prone sealing surfaces at the valve connections\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify refrigerant type, port sizes, and block-style configuration before installation. Replace sealing washers as needed and confirm all mating surfaces are clean and undamaged. This valve is specified without a solenoid and uses No. 6, No. 8, and No. 10 sealing-washer connections, so matching the original system layout is important for proper fit and sealing. For Buick Encore GX and Chevrolet Trailblazer service, confirm the vehicle’s A\/C system configuration against the original part before reassembly.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eFour Seasons states that its mobile A\/C products are engineered and tested for long service life, drawing on more than 50 years of air conditioning experience. This expansion valve is built to meet or exceed OEM standards for the listed applications.\u003c\/p\u003e","brand":"Four Seasons","offers":[{"title":"Default Title","offer_id":52958187552949,"sku":"BBRN-39702","price":35.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/FS_39702_FRO.jpg?v=1786430368","url":"https:\/\/www.partcatalog.com\/products\/four-seasons-39702-a-c-expansion-valve","provider":"PartCatalog","version":"1.0","type":"link"}