{"product_id":"nissens-999421-a-c-expansion-valve","title":"Nissens 999421 A\/C Expansion Valve","description":"\u003ch2\u003eOE-Style A\/C Expansion Valve for Volvo\u003c\/h2\u003e\u003cp\u003eThis Nissens A\/C expansion valve is built for precise refrigerant control in Volvo climate systems using R1234YF. Part number 999421 is a block-style aluminum valve with OE-matching attention to pressure performance, tightness, opening behavior, set-point calibration, and internal finish.\u003c\/p\u003e\u003cp\u003eIt is a direct-fit service part for select Volvo S60, S90, V60 Cross Country, V90 Cross Country, XC60, and XC90 applications. If you are replacing a faulty Volvo A\/C expansion valve, 999421 provides the correct refrigerant metering characteristics for the system.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: Nissens\u003c\/li\u003e\n\u003cli\u003ePart number: 999421\u003c\/li\u003e\n\u003cli\u003eBlock-style A\/C expansion valve\u003c\/li\u003e\n\u003cli\u003eAluminum construction\u003c\/li\u003e\n\u003cli\u003eFor R1234YF refrigerant systems\u003c\/li\u003e\n\u003cli\u003eO-rings included for sealing service points\u003c\/li\u003e\n\u003cli\u003eOE-focused testing for pressure, tightness, opening, and set-point control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Overview\u003c\/h2\u003e\u003cp\u003eNissens 999421 is engineered as a thermal expansion valve for Volvo HVAC systems that require accurate refrigerant flow regulation. The valve’s aluminum body and block design support consistent operation in modern R1234YF air conditioning systems, while the included O-rings help support proper sealing during replacement. This part cross-references Volvo 31404338 and 32260834 for the same application.\u003c\/p\u003e\u003cp\u003eCompatible With Volvo S60, Volvo S90, Volvo V60 Cross Country, Volvo V90 Cross Country, Volvo XC60, and Volvo XC90 applications across the listed model years, this valve is a practical choice when restoring cabin cooling performance. The part number 999421 is also useful when searching for a Volvo A\/C expansion valve replacement by OE reference.\u003c\/p\u003e\u003ch2\u003eCommon Problems This Part May Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWeak or uneven cabin cooling\u003c\/li\u003e\n\u003cli\u003eIncorrect refrigerant metering at the evaporator\u003c\/li\u003e\n\u003cli\u003eA\/C performance changes caused by a sticking or restricted valve\u003c\/li\u003e\n\u003cli\u003eTemperature fluctuations during compressor cycling\u003c\/li\u003e\n\u003cli\u003eSealing issues at the valve connection points\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify refrigerant type before installation; this valve is specified for R1234YF systems. Match the inlet and outlet dimensions to the vehicle application before assembly, and inspect the mating surfaces for cleanliness and damage. Replace the valve only after recovering the refrigerant and following proper HVAC service procedures for the vehicle.\u003c\/p\u003e\u003cp\u003eFor fitment, use the exact vehicle listing: Fits 2019-2024 Volvo S60, N\/A; Fits 2017-2024 Volvo S90, N\/A; Fits 2020-2024 Volvo V60 Cross Country, N\/A; Fits 2021-2024 Volvo V90 Cross Country, N\/A; Fits 2018-2024 Volvo XC60, N\/A; Fits 2016-2022 Volvo XC90, N\/A; Fits 2019-2021 Volvo V60, N\/A; Fits 2018-2021 Volvo V90, N\/A; Fits 2025 Volvo S60, N\/A; Fits 2025 Volvo S90, N\/A; Fits 2025 Volvo V90 Cross Country, N\/A; Fits 2023-2025 Volvo XC90, N\/A.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eNissens manufactures this expansion valve to OE-matching standards and validates pressure performance, tightness, opening characteristics, set-point setting, and internal finish through comprehensive testing.\u003c\/p\u003e","brand":"Nissens","offers":[{"title":"Default Title","offer_id":53005825769653,"sku":"BKMH-999421","price":93.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/N1_999421_Ang.jpg?v=1787375859","url":"https:\/\/www.partcatalog.com\/products\/nissens-999421-a-c-expansion-valve","provider":"PartCatalog","version":"1.0","type":"link"}