The primary radiator on a 2017-up 6.7L Powerstroke leaks at the plastic tank or overheats when the factory single row cannot keep up. Replace it with the CSF 3849. This is a 2-row core in place of that 1-row primary, with quick-connect coolant pipes.

• Build: Core is 27-11/16 inches by 38-3/8 inches and 1-5/8 inches thick, crossflow.
• Pipes: Quick-connect inlet and outlet. Inlet is 2 inches on the left and the outlet is 2-1/4 inches on the right.
• No transmission cooler: No transmission oil cooler is built into this primary radiator.
• Tank: Glass-filled plastic tank and EPDM seals, leak-tested at 150 percent of operating pressure.
• Part number: CSF 3849 crosses OEM HC3Z8005B, HC3Z8005J, LC3Z8005B, and LC3Z8005C.
• Fitment: 2017-2026 Ford F-250, F-350, F-450, and F-550 Super Duty 6.7L Powerstroke primary radiator.
• Does not fit: The 6.2L gas radiator, CSF 3848, or the secondary radiator, CSF 3850. It also does not fit 2011-2016 trucks.
• Not in the box: The radiator cap is not included, and the hoses and clamps are not in the box.
• Warranty: CSF lists a 2-year limited warranty for the original owner. The term is on the warranty card in the box.

Order today to secure your replacement. Confirm you need the 6.7L primary, not the 6.2L gas radiator or the secondary, before you order.