{"product_id":"csf-3966-radiator","title":"CSF 3966 Radiator","description":"\u003ch2\u003eCSF 3966 Radiator for Mazda 3 and CX-30\u003c\/h2\u003e\u003cp\u003eCSF 3966 is an OE-style radiator built with a plastic tank and aluminum core for select Mazda applications. It is engineered as an upgraded heavy-duty replacement with a thicker core than the original design, making it a direct-fit option for 2019-2022 Mazda 3 and 2020-2022 Mazda CX-30 models.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOE-style radiator construction with plastic tanks and aluminum core\u003c\/li\u003e\n\u003cli\u003eCross flow design with one-row core\u003c\/li\u003e\n\u003cli\u003eCore thickness: 5\/8 in.\u003c\/li\u003e\n\u003cli\u003eCore dimensions: 17 in. wide x 26 9\/16 in. long\u003c\/li\u003e\n\u003cli\u003eInlet diameter: 1 5\/16 in., right side\u003c\/li\u003e\n\u003cli\u003eOutlet diameter: 1 5\/16 in., left side\u003c\/li\u003e\n\u003cli\u003eUpgraded heavy-duty core, 42% thicker than OEM 11 mm design\u003c\/li\u003e\n\u003cli\u003eCSF part number 3966\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eCSF 3966 radiator is designed for drivers who need a direct replacement for the factory cooling unit in select Mazda 3 and Mazda CX-30 models. The aluminum core and plastic tank layout follows OE-style construction, while the upgraded core thickness adds capacity over the original 11 mm design. CSF manufactures radiators to high-performance standards and validates cooling performance through laboratory wind tunnel testing. This part cross-references PAF3-15-200A and PAF3-15-200B for the same application.\u003c\/p\u003e\u003ch2\u003eWhat This Radiator Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOverheating caused by a worn or restricted radiator core\u003c\/li\u003e\n\u003cli\u003eCoolant leaks from aging plastic tank and core assemblies\u003c\/li\u003e\n\u003cli\u003eReduced cooling efficiency in stop-and-go driving\u003c\/li\u003e\n\u003cli\u003eHeat buildup from a damaged or corroded factory radiator\u003c\/li\u003e\n\u003cli\u003eReplacement needs for a failed Mazda 3 radiator or Mazda CX-30 radiator\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eFits 2019-2022 Mazda 3, N\/A. Fits 2020-2022 Mazda CX-30, N\/A. Verify inlet and outlet orientation before installation: inlet is on the right and outlet is on the left. Confirm all hose connections, mounting points, and cooling system components match the original radiator before installation. CSF 3966 uses a cross flow layout and does not include a radiator cap.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eCSF radiators are manufactured in ISO\/TSO-certified facilities and built for global OE and aftermarket use. The brand reports more than 30 million radiators sold worldwide and uses laboratory testing to validate cooling performance.\u003c\/p\u003e","brand":"CSF","offers":[{"title":"Default Title","offer_id":52431274770613,"sku":"BBMD-3966","price":212.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/C3_3966_Fro.jpg?v=1777849882","url":"https:\/\/www.partcatalog.com\/products\/csf-3966-radiator","provider":"PartCatalog","version":"1.0","type":"link"}