{"product_id":"nissens-9991045-a-c-expansion-valve-rear","title":"Nissens 9991045 A\/C Expansion Valve - Rear","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe Nissens 9991045 A\/C expansion valve is a block-style aluminum refrigerant flow restrictor built for precise pressure control in the air conditioning system. It is a fitment-based replacement for select Subaru Crosstrek, Subaru Impreza, and Land Rover Defender 90 applications, with OE-matching standards used in testing and validation.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBlock-style A\/C expansion valve for controlled refrigerant metering\u003c\/li\u003e\n\u003cli\u003eAluminum construction for a durable, lightweight housing\u003c\/li\u003e\n\u003cli\u003eConfigured for R134 refrigerant systems\u003c\/li\u003e\n\u003cli\u003eIncludes O-rings and mounting bolts whenever applicable\u003c\/li\u003e\n\u003cli\u003eValidated for pressure performance, tightness, opening, set-point setting, and inner finish\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eNissens 9991045 is engineered as an OE-style thermal expansion valve for HVAC systems that require accurate refrigerant regulation. The block design and aluminum body support consistent flow control, while Nissens testing standards focus on pressure performance, sealing integrity, opening behavior, set-point accuracy, and internal finish. This part cross-references UAC (e.g., EX10624C, EX10663C) for the same application.\u003c\/p\u003e\u003cp\u003eCompatible with 2018-2023 Subaru Crosstrek, 2017-2019 Subaru Impreza, and 2022-2023 Land Rover Defender 90, Rear. Use this part number 9991045 when matching the correct A\/C expansion valve for these applications.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestoring proper refrigerant metering in the A\/C system\u003c\/li\u003e\n\u003cli\u003eAddressing uneven cooling performance caused by valve wear or restriction\u003c\/li\u003e\n\u003cli\u003eCorrecting pressure control issues in the HVAC circuit\u003c\/li\u003e\n\u003cli\u003eReplacing a leaking or internally contaminated expansion valve\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify refrigerant type, valve style, and vehicle fitment before installation. Replace O-rings during service and confirm sealing surfaces are clean and undamaged. This part number 9991045 is listed for rear application on the Land Rover Defender 90 and for N\/A-position fitment on the Subaru Crosstrek and Subaru Impreza.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eNissens manufactures thermal expansion valves to precise OE matching standards and subjects them to comprehensive testing for pressure control, tightness, opening characteristics, set-point setting, and inner finish. Part number 9991045 reflects that validation-focused approach for HVAC service work.\u003c\/p\u003e","brand":"Nissens","offers":[{"title":"Default Title","offer_id":53534279991477,"sku":"BKMH-9991045","price":30.01,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/N1_9991045_FRO.jpg?v=1792128865","url":"https:\/\/www.partcatalog.com\/products\/nissens-9991045-a-c-expansion-valve-rear","provider":"PartCatalog","version":"1.0","type":"link"}