{"product_id":"csf-3946-radiator","title":"CSF 3946 Radiator","description":"\u003ch2\u003eOE-Style Radiator for Ford Cooling Service\u003c\/h2\u003e\u003cp\u003eThis CSF radiator is built for Ford Ranger and Ford Bronco applications that need a direct-fit cooling system replacement with OE-style construction. Part number 3946 uses an aluminum core with plastic tanks and a cross-flow layout to match the factory-style configuration.\u003c\/p\u003e\u003cp\u003eDesigned for 2021-2025 Ford Bronco and 2024-2026 Ford Ranger applications, CSF 3946 features a heavy-duty core that is 7% thicker than the OEM 27mm design. The quick-connect inlet and outlet pipe layout supports a clean radiator replacement for vehicles using the listed factory-style connections.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCSF part number 3946\u003c\/li\u003e\n\u003cli\u003eOE-style plastic tank and aluminum core construction\u003c\/li\u003e\n\u003cli\u003eCross-flow radiator design\u003c\/li\u003e\n\u003cli\u003e1-row core with 1 1\/4 in. core thickness\u003c\/li\u003e\n\u003cli\u003eHeavy-duty core is 30mm thick, 7% thicker than OEM 27mm\u003c\/li\u003e\n\u003cli\u003e1 1\/2 in. inlet on the right and 1 1\/2 in. outlet on the left\u003c\/li\u003e\n\u003cli\u003eBuilt for 2021-2025 Ford Bronco and 2024-2026 Ford Ranger\u003c\/li\u003e\n\u003cli\u003eWind tunnel tested for cooling performance validation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eCSF 3946 is a replacement radiator engineered for Ford Ranger and Ford Bronco cooling system service where factory-style fitment and thermal performance matter. It uses an aluminum core with plastic tanks, a cross-flow configuration, and quick-connect inlet and outlet pipe connections. The core measures 33 7\/16 in. long and 15 5\/8 in. wide, with a 1 1\/4 in. thickness and a single-row design. CSF states this heavy-duty core is 30mm thick, which is 7% thicker than the OEM 27mm specification.\u003c\/p\u003e\u003cp\u003eCSF manufactures radiators to high-performance standards and validates cooling performance in laboratory wind tunnel testing. Part number 3946 cross-references BBB Industries 13936 and Partslink FO3010371 for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Cooling Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLeaking radiator tanks or core seams\u003c\/li\u003e\n\u003cli\u003eRestricted coolant flow from an aging radiator\u003c\/li\u003e\n\u003cli\u003eOverheating caused by reduced heat transfer\u003c\/li\u003e\n\u003cli\u003eCracked or brittle plastic end tanks\u003c\/li\u003e\n\u003cli\u003eDamaged inlet or outlet connections\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify inlet and outlet orientation before installation: inlet is 1 1\/2 in. on the right and outlet is 1 1\/2 in. on the left. This radiator does not include a radiator cap and does not include an oil cooler. Confirm vehicle-specific fitment for your Ford Bronco or Ford Ranger before removing the original unit, and inspect hoses, clamps, and coolant condition during service.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eCSF manufactures radiators in ISO\/TSO-certified facilities and has supplied cooling components worldwide for more than 50 years. The brand reports more than 30 million radiators sold and uses laboratory testing to validate cooling performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFits 2021-2025 Ford Bronco, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2024-2026 Ford Ranger, N\/A\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CSF","offers":[{"title":"Default Title","offer_id":52431273689269,"sku":"BBMD-3946","price":211.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/C3_3946_Fro.jpg?v=1777849786","url":"https:\/\/www.partcatalog.com\/products\/csf-3946-radiator","provider":"PartCatalog","version":"1.0","type":"link"}