{"product_id":"spectra-cu13603-radiator","title":"Spectra CU13603 Radiator","description":"\u003ch2\u003eSpectra CU13603 Radiator for Kia Optima\u003c\/h2\u003e\u003cp\u003eThe Spectra CU13603 radiator is built for OE-level durability and fitment expectations, making it a direct replacement choice for cooling system service. It is a practical option for 2016-2020 Kia Optima radiator replacement needs, including applications that require a radiator cap.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDirect-fit radiator for select Kia Optima models\u003c\/li\u003e\n\u003cli\u003eEngineered to meet the durability expectations associated with OE-style cooling components\u003c\/li\u003e\n\u003cli\u003eFits 2020 Kia Optima, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2016-2019 Kia Optima, N\/A; radiator cap is required\u003c\/li\u003e\n\u003cli\u003ePart number CU13603 for easy identification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eDesigned for the Kia Optima cooling system, this Spectra radiator supports heat transfer and coolant circulation in daily driving conditions. The CU13603 is listed for 2020 Kia Optima and 2016-2019 Kia Optima applications, with a radiator cap required on the 2016-2019 fitment. This part cross-references CSF 3873 and TYC 13603 for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Replacement Reasons\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLeaking radiator tanks or core\u003c\/li\u003e\n\u003cli\u003eOverheating caused by restricted coolant flow\u003c\/li\u003e\n\u003cli\u003eCorrosion or age-related cooling system wear\u003c\/li\u003e\n\u003cli\u003eDamaged radiator from road debris or impact\u003c\/li\u003e\n\u003cli\u003eCooling performance loss during stop-and-go driving\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify vehicle year and cooling system configuration before installation. For 2016-2019 Kia Optima applications, a radiator cap is required. Inspect hoses, clamps, and coolant condition during replacement, and confirm the system is properly filled and bled after installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eSpectra Premium radiators are built with the durability and performance expectations associated with OE replacement cooling parts. The CU13603 is intended for direct replacement use on listed Kia Optima applications.\u003c\/p\u003e","brand":"Spectra","offers":[{"title":"Default Title","offer_id":52827917353141,"sku":"BCNK-CU13603","price":290.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/SQ_CU13603_Fro.jpg?v=1784613849","url":"https:\/\/www.partcatalog.com\/products\/spectra-cu13603-radiator","provider":"PartCatalog","version":"1.0","type":"link"}