{"product_id":"four-seasons-39454-a-c-expansion-valve","title":"Four Seasons 39454 A\/C Expansion Valve","description":"\u003ch2\u003eFour Seasons 39454 Expansion Valve\u003c\/h2\u003e\u003cp\u003eThe Four Seasons 39454 expansion valve is a block-type A\/C flow restrictor built for R134A systems and engineered for direct replacement service. It is listed for the 2008-2015 Smart Fortwo and is a common choice when servicing a Smart Fortwo A\/C system that needs precise refrigerant metering.\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: 39454\u003c\/li\u003e\n\u003cli\u003eBlock-type A\/C expansion valve for R134A refrigerant\u003c\/li\u003e\n\u003cli\u003eAluminum construction with aluminum finish\u003c\/li\u003e\n\u003cli\u003eFemale insert O-ring liquid and suction connections\u003c\/li\u003e\n\u003cli\u003e2 mounting holes for secure installation\u003c\/li\u003e\n\u003cli\u003eMeets or exceeds OEM requirements\u003c\/li\u003e\n\u003cli\u003eApplication listed for 2008-2015 Smart Fortwo\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eFour Seasons 39454 is an aluminum A\/C expansion valve that regulates refrigerant flow into the evaporator to maintain proper system operation. The valve uses female insert O-ring fittings on both the suction and liquid sides, with No. 12 suction inlet and outlet thread diameters and No. 6 liquid inlet with No. 8 liquid outlet thread diameters. It is specified as a 2.0 ton block-type valve with a super heat rating of -1.500 and no solenoid included. For Smart Fortwo A\/C repair work, this part number 39454 provides a direct-fit service option for the 2008-2015 Smart Fortwo, N\/A position listing.\u003c\/p\u003e\u003cp\u003eFour Seasons’ Expansion Valve line focuses on replacement HVAC flow control components for vehicles that use expansion-valve-based refrigerant metering. This part is listed as an OE-spec replacement and is cross-referenced with UAC EX10418C for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Repair Symptoms\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWeak or inconsistent cabin cooling\u003c\/li\u003e\n\u003cli\u003eIncorrect evaporator refrigerant metering\u003c\/li\u003e\n\u003cli\u003eA\/C system pressure imbalance\u003c\/li\u003e\n\u003cli\u003eCompressor cycling concerns related to flow control\u003c\/li\u003e\n\u003cli\u003eReduced cooling performance in a Smart Fortwo A\/C system\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify refrigerant type, port style, and mounting-hole alignment before installation. Replace the O-rings with the correct A\/C seals for the connection points, evacuate the system, and recharge to the vehicle specification after service. Confirm the system is clean and free of contamination before installing the new expansion valve.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eFour Seasons 39454 is built to meet or exceed OEM requirements for the listed application. It is designed as a replacement HVAC component for service technicians and DIY repairs where accurate refrigerant control is required.\u003c\/p\u003e","brand":"Four Seasons","offers":[{"title":"Default Title","offer_id":44599735877813,"sku":"BBRN-39454","price":25.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/FS_39454_Fro.jpg?v=1775068307","url":"https:\/\/www.partcatalog.com\/products\/four-seasons-39454-a-c-expansion-valve","provider":"PartCatalog","version":"1.0","type":"link"}