{"product_id":"csf-3724-radiator","title":"CSF 3724 Radiator","description":"\u003ch2\u003eBMW Radiator Replacement for OE-Style Cooling\u003c\/h2\u003e\u003cp\u003eCSF Radiator 3724 is an OE-style replacement radiator built with an aluminum core and plastic tanks for BMW cooling system service. It is engineered for cross-flow operation with quick-connect inlet and outlet pipe connections, making it a direct-fit solution for select BMW i3, 320i, 328i, 428i, 435i, 335i, 228i, and M235i applications.\u003c\/p\u003e\u003cp\u003eWith a 1 1\/4-inch core thickness, 23 5\/8-inch core length, and 13 5\/8-inch core width, this radiator is sized for the listed BMW fitments and uses a single-row core design. CSF also validates radiator performance through lab testing, including wind tunnel evaluation, to support cooling efficiency.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart number 3724 radiator for select BMW cooling system repairs\u003c\/li\u003e\n\u003cli\u003eAluminum core with plastic tanks in an OE-style construction\u003c\/li\u003e\n\u003cli\u003eCross-flow design with 1 1\/2-inch inlet on the left and 1 1\/2-inch outlet on the right\u003c\/li\u003e\n\u003cli\u003eSingle-row core design with 1 1\/4-inch core thickness\u003c\/li\u003e\n\u003cli\u003eQuick-connect inlet and outlet pipe design\u003c\/li\u003e\n\u003cli\u003eNo radiator cap included\u003c\/li\u003e\n\u003cli\u003eInterchanges with Carlson 13395\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eCSF 3724 is a replacement radiator designed for BMW models that use the listed OE-style cooling layout. The radiator features an aluminum core for heat transfer and plastic tanks for a factory-style fit, along with a cross-flow configuration that matches the specified inlet and outlet placement. Core dimensions measure 23 5\/8 inches long and 13 5\/8 inches wide, with a 1 1\/4-inch thickness and one core row.\u003c\/p\u003e\u003cp\u003eThis radiator is a fit for 2012-2016 BMW 320i, 2012-2016 BMW 328i, 2014-2016 BMW 428i, 2014-2016 BMW 435i, 2012-2015 BMW 335i, and related applications listed below. It also covers BMW i3 Range Extender models from 2014-2021 and BMW i3s Range Extender models from 2018-2019. Part number 3724 is a practical choice when replacing a leaking, damaged, or inefficient radiator in these BMW platforms.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits 2014-2021 BMW i3, N\/A, Range Extender Models Only\u003c\/li\u003e\n\u003cli\u003eFits 2018-2019 BMW i3s, N\/A, Range Extender Models Only\u003c\/li\u003e\n\u003cli\u003eFits 2017-2018 BMW 320i, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2014-2016 BMW 228i, N\/A, w\/o SULEV\u003c\/li\u003e\n\u003cli\u003eFits 2015-2016 BMW 228i xDrive, N\/A, w\/o SULEV\u003c\/li\u003e\n\u003cli\u003eFits 2012-2016 BMW 320i, N\/A, w\/o SULEV\u003c\/li\u003e\n\u003cli\u003eFits 2012-2016 BMW 328i, N\/A, w\/o SULEV\u003c\/li\u003e\n\u003cli\u003eFits 2014-2016 BMW 428i, N\/A, w\/o SULEV\u003c\/li\u003e\n\u003cli\u003eFits 2015-2016 BMW 428i Gran Coupe, N\/A, w\/o SULEV\u003c\/li\u003e\n\u003cli\u003eFits 2014-2016 BMW 435i, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2014-2016 BMW 435i xDrive, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2016 BMW M235i, N\/A, w\/o SULEV\u003c\/li\u003e\n\u003cli\u003eFits 2015-2016 BMW 328i xDrive, N\/A, w\/o SULEV\u003c\/li\u003e\n\u003cli\u003eFits 2013 BMW 328i xDrive, N\/A, w\/o SULEV\u003c\/li\u003e\n\u003cli\u003eFits 2012-2015 BMW 335i, N\/A, w\/o M Sport Line\u003c\/li\u003e\n\u003cli\u003eFits 2012-2015 BMW 335i xDrive, N\/A, w\/o M Sport Line\u003c\/li\u003e\n\u003cli\u003eFits 2012-2013 BMW 325i, N\/A, w\/o M Sport Line\u003c\/li\u003e\n\u003cli\u003eFits 2012-2013 BMW 325i, N\/A, w\/o SULEV\u003c\/li\u003e\n\u003cli\u003eFits 2012-2013 BMW 328i, N\/A, w\/o M Sport Line\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Problems This Radiator Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCoolant leaks from a cracked or aging radiator tank\u003c\/li\u003e\n\u003cli\u003eOverheating caused by reduced heat dissipation\u003c\/li\u003e\n\u003cli\u003eDamaged inlet or outlet connections\u003c\/li\u003e\n\u003cli\u003eCorrosion or internal blockage in the cooling core\u003c\/li\u003e\n\u003cli\u003eCooling system service on BMW i3, 320i, 328i, 428i, 435i, 335i, 228i, or M235i models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the vehicle’s exact engine and emissions configuration before ordering, especially for w\/o SULEV and Range Extender applications. This radiator uses quick-connect inlet and outlet pipe connections and is built for the listed cross-flow layout with inlet on the left and outlet on the right. Confirm hose routing, mounting points, and core dimensions against the original unit before installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eCSF manufactures radiators to high-performance standards and uses lab-based cooling validation, including wind tunnel testing, to evaluate performance. The brand has supplied radiators worldwide for decades and produces a broad range of OE-style cooling components for leading vehicle applications.\u003c\/p\u003e\u003cp\u003eThis part cross-references Carlson 13395 for the same application.\u003c\/p\u003e","brand":"CSF","offers":[{"title":"Default Title","offer_id":52431272837301,"sku":"BBMD-3724","price":149.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/C3_3724_Fro.jpg?v=1777849718","url":"https:\/\/www.partcatalog.com\/products\/csf-3724-radiator","provider":"PartCatalog","version":"1.0","type":"link"}