{"product_id":"denso-221-9558-radiator","title":"Denso 221-9558 Radiator","description":"\u003ch2\u003eDenso 221-9558 Radiator for Acura RDX\u003c\/h2\u003e\u003cp\u003eThe Denso 221-9558 radiator is an OE-style cooling replacement for the 2013-2018 Acura RDX. Built to match factory specifications for core size, inlet and outlet dimensions, and material selection, it supports consistent engine temperature control in daily driving and demanding conditions.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCore height: 15.7480 in. for factory-style cooling coverage\u003c\/li\u003e\n\u003cli\u003eCore width: 30.2362 in. for proper radiator surface area\u003c\/li\u003e\n\u003cli\u003eCore thickness: 1.0236 in. for OE-matched cooling capacity\u003c\/li\u003e\n\u003cli\u003eInlet diameter: 1.2795 in. and outlet diameter: 1.2913 in. for correct hose connection sizing\u003c\/li\u003e\n\u003cli\u003eBuilt to Denso OE standards for fitment, durability, and function\u003c\/li\u003e\n\u003cli\u003eDirect replacement radiator for Acura RDX cooling system service\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eDenso part number 221-9558 is engineered as a radiator replacement for the Acura RDX, with dimensions and configuration details that align with OE requirements. Denso supplies radiators to vehicle manufacturers worldwide, and this unit reflects that OE-focused experience through controlled core dimensions, tank design, fin pitch, and material selection. For owners searching for a 2013-2018 Acura RDX radiator, this part number 221-9558 provides a direct-fit cooling solution that supports stable engine operation.\u003c\/p\u003e\u003cp\u003eThis radiator is a practical choice when replacing a leaking, clogged, or damaged cooling unit on the Acura RDX. It is also a fitment-based option for shoppers comparing Acura RDX radiator replacement parts, Denso radiator 221-9558, or OE-style cooling components for the same application.\u003c\/p\u003e\u003cp\u003eThis part cross-references Acura 19010R8AA51 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCoolant loss from a cracked or leaking radiator\u003c\/li\u003e\n\u003cli\u003eOverheating caused by restricted coolant flow\u003c\/li\u003e\n\u003cli\u003eReduced cooling efficiency from internal corrosion or blockage\u003c\/li\u003e\n\u003cli\u003ePhysical damage to the radiator core or tanks\u003c\/li\u003e\n\u003cli\u003eTemperature instability during stop-and-go or highway driving\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eFits 2013-2018 Acura RDX, N\/A. Confirm hose diameter, mounting points, and overall core dimensions before installation. Flush the cooling system, inspect hoses and clamps, and replace degraded coolant as part of the repair. Verify proper bleed procedure after installation to remove trapped air and restore normal coolant circulation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDenso states that its radiators are built to OE manufacturer standards and undergo durability and function testing before release. That OE-focused validation helps support reliable performance and fitment for Acura RDX cooling system service.\u003c\/p\u003e","brand":"Denso","offers":[{"title":"Default Title","offer_id":52412241739957,"sku":"BBNF-221-9558","price":203.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NP_2219558_Fro.jpg?v=1777787433","url":"https:\/\/www.partcatalog.com\/products\/denso-221-9558-radiator","provider":"PartCatalog","version":"1.0","type":"link"}