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Call or Text (352) 722-5295Radiators on the 2020-2022 Ford 6.7L Powerstroke
The 6.7L runs two cooling loops, and the radiators here come in primary and secondary versions to match. The primary loop cools the block and heads and holds about 7.25 to 7.75 gallons. The secondary, low-temperature loop holds about 2.0 gallons and cools the air-to-water charge air cooler, the EGR cooler, the fuel cooler and the transmission fluid cooler. Up front, the radiator shares a stack with the secondary-loop heat exchanger and the A/C condenser, and debris packed between those layers causes overheating under tow. Each loop has its own degas bottle, which matters when it is time to refill. Find the rest of your Powerstroke parts on the engine hub.
What fails and why
Radiator leaks are a listed cooling failure on every 6.7L generation, and they get worse at high mileage. Signs include coolant loss you can't explain, a sweet smell under the hood and overheating on grades. Not every hot-running truck needs a radiator, though. If the temperature climbs only on long grades or under tow and reads normal empty, the usual causes are a plugged stack, an airflow restriction or a worn fan clutch. Clean the charge-air cooler heat exchanger, condenser and radiator and verify the fan clutch first. If the radiator itself is leaking, that is when it gets replaced.
Stock replacement vs. upgrade
For a leaking radiator on a truck you want back to factory, the CSF 3849 primary and CSF 3850 secondary are OEM-style replacements. The XDP Xtra Cool XD463 main and XD467 secondary radiators are direct-fit aftermarket units, and the Mishimoto MMRAD-F2D-17 is an aluminum primary radiator. Read each listing for core construction and what the maker claims, and match it to how hard you work the truck. While the radiator is out on a high-mileage truck, look hard at the hoses and clamps too; they are leak-prone wear items on this engine.
What we carry
- CSF 3849 OEM Style Replacement Radiator, primary, listed 2017-2026.
- CSF 3850 OEM Style Replacement Radiator, Standard Output, secondary, listed 2017-2025.
- XDP XD463 Xtra Cool Direct-Fit Replacement Main Radiator, listed 2017-2025.
- XDP XD467 Xtra Cool Direct-Fit Replacement Secondary Radiator, listed 2017-2025.
- Mishimoto MMRAD-F2D-17 Aluminum Primary Radiator, listed 2017-2024.
Fitment notes
Primary and secondary radiators are different parts, so order the one that matches the loop that is leaking. Every radiator here is listed for a range that starts at 2017 and covers 2020-2022. The CSF 3850 title says Standard Output; Ford did not add the High-Output 6.7L until 2023, so every 2020-2022 pickup is a standard-output truck. Chassis cabs share the engine but are separate products; verify those by VIN. After the install, refill with coolant that meets Ford's 2020-and-newer spec, Motorcraft Yellow to WSS-M97B57-A1/A2, through the degas bottle for the loop you opened.
Frequently asked questions
Do I need the primary or the secondary radiator?
It depends on which loop is leaking. The primary radiator serves the loop that cools the block and heads. The secondary radiator serves the low-temperature loop that cools the intercooler, EGR cooler, fuel and transmission fluid. Find the leak first, then order the matching part.
Why does my F-250 overheat only when towing?
A temperature climb that shows up only under tow or on long grades usually traces to a plugged cooling stack, an airflow restriction or a worn fan clutch. Clean the heat exchanger, condenser and radiator and check the fan clutch before you buy a radiator.
Will a Standard Output radiator fit my 2022 F-350?
The CSF 3850 is listed for 2017-2025, and Ford did not offer the High-Output 6.7L until 2023, so a 2022 F-350 pickup is a standard-output truck. Confirm by VIN or with the fitment checker before you order.
How much coolant will I need after a radiator swap?
That depends on which loop you open. The primary holds about 7.25 to 7.75 gallons and the secondary about 2.0 gallons, each with its own degas bottle. Have enough coolant that meets Ford's yellow spec on hand before you drain anything.
Not sure what fits? Call the shop at the number in the header, or use the fitment checker on any product page. We install everything we sell.