{"product_id":"four-seasons-39681-a-c-expansion-valve-front","title":"Four Seasons 39681 A\/C Expansion Valve - Front","description":"\u003ch2\u003eReliable A\/C Expansion Valve for Lexus RX Models\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Expansion Valve 39681 is engineered to regulate refrigerant flow precisely in your Lexus RX350, RX350L, RX450h, and RX450hL models. Designed with durable aluminum and compatible with R134a refrigerant, this block-type valve ensures efficient air conditioning system performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from lightweight, corrosion-resistant aluminum\u003c\/li\u003e\n\u003cli\u003eCompatible with R134a refrigerant systems\u003c\/li\u003e\n\u003cli\u003eBlock type design without solenoid for consistent flow control\u003c\/li\u003e\n\u003cli\u003eO-ring style liquid and suction inlet\/outlet connections for secure sealing\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds OEM specifications for reliable fit and function\u003c\/li\u003e\n\u003cli\u003eIncludes mounting hardware for straightforward installation\u003c\/li\u003e\n\u003cli\u003eDesigned for 1-ton A\/C systems with a superheat rating of -6.000\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the Four Seasons Expansion Valve Product Line\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Expansion Valve line focuses on delivering precise refrigerant metering components that maintain optimal air conditioning system efficiency. The 39681 model exemplifies this with its block-type design and compatibility with common refrigerants like R134a. This product line is tailored to meet or exceed OEM standards, providing dependable performance for specific vehicle applications such as the Lexus RX series.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis A\/C expansion valve features a block-type configuration constructed from aluminum, offering durability and resistance to corrosion. It is designed for use with R134a refrigerant, the standard for many modern automotive air conditioning systems. The valve includes O-ring style liquid inlet and outlet connections (No. 6 and No. 10 sizes respectively) and suction inlet and outlet connections (both No. 12 size), ensuring a secure and leak-free fit. The valve operates without a solenoid, simplifying the design and reducing potential failure points. Its superheat rating of -6.000 and 1-ton tonnage rating make it suitable for the cooling demands of Lexus RX350, RX350L, RX450h, and RX450hL models.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Expansion Valve\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eInconsistent or insufficient cooling performance in Lexus RX A\/C systems\u003c\/li\u003e\n\u003cli\u003eRefrigerant flow irregularities causing compressor strain or failure\u003c\/li\u003e\n\u003cli\u003eLeaks or poor sealing at liquid or suction connections\u003c\/li\u003e\n\u003cli\u003eFailure of original expansion valve components due to wear or corrosion\u003c\/li\u003e\n\u003cli\u003eAir conditioning system inefficiency leading to increased energy consumption\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the A\/C system is properly evacuated and free of contaminants before installing the Four Seasons Expansion Valve 39681. Verify that all O-rings are in good condition and properly seated to prevent leaks. This valve is designed to replace OEM parts directly on Lexus RX350, RX350L, RX450h, and RX450hL models, so confirm compatibility before installation. Follow manufacturer torque specifications for mounting hardware to avoid damage.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Expansion Valve 39681 meets or exceeds OEM standards, providing reliable performance and durability. Manufactured with precision aluminum components and tested for compatibility with R134a refrigerant, this valve supports consistent A\/C system operation. Warranty details should be confirmed with the product documentation or supplier to ensure coverage.\u003c\/p\u003e","brand":"Four Seasons","offers":[{"title":"Default Title","offer_id":52247051665589,"sku":"BBRN-39681","price":27.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/FS_39681_Fro.jpg?v=1775686731","url":"https:\/\/www.partcatalog.com\/products\/four-seasons-39681-a-c-expansion-valve-front","provider":"PartCatalog","version":"1.0","type":"link"}