2021 Ford F-350 Super Duty

Reliability tier: verified - see /disclosure/

Engine: 6.7L (Power Stroke, 6.7L)

gen3 - 475hp/1050lb-ft - steel pistons replace aluminum, compression 15.8:1, new 36,000psi injection calibration, turbo updated again, TorqShift 10R140 10-speed replaces the 6-speed

Applicable failure modes (11)

• Dual-circuit cooling system leaks (radiator / crossover tube / degas bottle / water pump)
• CP4.2 high-pressure fuel pump contamination cascade
• DEF / SCR / NOx sensor faults
• DPF clogging / regeneration problems
• EGR cooler thermal-fatigue coolant leak
• EGR valve soot clogging / sticking
• Low-pressure fuel supply weakness (lift pump, filters, water-in-fuel)
• Glow plug wear and cold-start faults, plus an isolated 2011-2013 tip-separation defect
• Piezo injector wear and fuel dilution of engine oil
• Intercooler condensation ingestion + cold-side charge-pipe fatigue
• VGT turbocharger failure - generation dependent (ceramic-bearing GT32 vs journal-bearing GT37+)

Applicable parts (25)

• Banks Power Boost Tube System, hot and cold side (2017-2026 6.7L Power Stroke, standard output)
• 6.7L Power Stroke EGR Cooler Upgrade with H-Core Technology, 2011-2024 (Bullet Proof Diesel)
• ford-powerstroke-6_7: coolant-hose (honest catalog gap)
• 6.7L Power Stroke CP4.2 High-Pressure Fuel Injection Pump, gen3 (2020-22)
• DEF Pump/Sender Module (Emission Reduction System)
• Coolant Recovery (Degas Bottle) Cap, gen3
• 6.7L Power Stroke Diesel Particulate Filter, Pickup
• 6.7L Power Stroke EGR Cooler (Heat Exchanger), gen3
• 6.7L Power Stroke EGR Valve, Pickup (Wide Frame), gen3
• Exhaust Gas Temperature (EGT) Sensor, 4-sensor set (DPF/DOC bank)
• 6.7L Power Stroke Fuel Contamination Kit (Alliant Power, gen3/2023-26)
• 6.7L Power Stroke Fuel Contamination Repair Kit, 2011-2022 (XDP / Alliant Power)
• 6.7L Power Stroke Billet Fuel Filter Housing / Leak Prevention Kit (S&S Diesel Motorsport)
• 6.7L Diesel Fuel Pressure Regulator, gen3
• 6.7L Power Stroke Fuel Rail, Left, gen3 (2020+)
• 6.7L Power Stroke Fuel Rail, Right, gen3 (2020+)
• 6.7L Power Stroke Injector, gen3 LC3Z era (2020-2022) - data gap
• 6.7L Power Stroke CP4-to-DCR Pump Conversion (S&S Diesel Motorsport)
• 6.7L Power Stroke CP4 Disaster Prevention Bypass Kit, Gen2.1 (S&S Diesel Motorsport)
• 6.7L Power Stroke LPK/DPK Replacement Filter Kit (S&S Diesel Motorsport)
• 6.7L Power Stroke Turbocharger Pedestal Gasket
• 6.7L Power Stroke Turbocharger Assembly (gen3, 2020-22)
• 6.7L Power Stroke Auxiliary Water Pump, Dual Alternators
• 6.7L Power Stroke Auxiliary Water Pump, Single Alternator
• 6.7L Power Stroke Primary (Engine) Water Pump, gen3

Platform recipes (5)

• Aftertreatment repair for the 2011-2022 6.7 (modes fm-ps67-def-system / fm-ps67-dpf-clog): sensors lie first - verify the DPS and EGT sensors before any assembly spend
• Full repair path after a confirmed CP4.2 high-pressure pump contamination event (fm-ps67-cp4-fuel-pump): metal debris in the fuel filter means the pump, injectors, rails, and lines are all contaminated, not just the pump
• Preventive measures against the CP4.2 contamination cascade (fm-ps67-cp4-fuel-pump) and the separately-documented plastic fuel-filter-housing cracking issue (fm-ps67-fuel-delivery) - cheap insurance against the platform's single costliest failure mode, applicable across all three generations since the CP4.2 pump has been used throughout (an aftermarket parts maker's 6.7L Power Stroke guide, a parts retailer's 6.7L Power Stroke guide)
• EGR repair by generation (modes fm-ps67-egr-valve / fm-ps67-egr-cooler): the 6.7's EGR hardware is generation- AND frame-split
• Turbocharger repair for fm-ps67-vgt-turbo - and the platform's clearest illustration of why generation matters: gen1 (2011-2014, Garrett GT32 ceramic-bearing) and gen3 (2020-22, per Ford's own catalog note) use ENTIRELY DIFFERENT turbocharger assembly part numbers (BC3Z-6K682-A/C vs LC3Z-6K682-A) - ordering the wrong one is not a simple supersession mistake, it is the wrong physical part

Recalls that include this truck (4)

• 26V-158 (March 17, 2026) - FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP: Ford Motor Company (Ford) is recalling certain 2020-2022 F-Super Duty F250, F350, F450, F550, 2021-2022 F600, and 2022 F750 vehicles previously repaired incorrectly under recall number 24V957. Biodiesel deposits may...
• 24V-957 (December 20, 2024) - FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP: Ford Motor Company (Ford) is recalling certain 2020-2022 F-Super Duty F250, F350, F450, F550, F600, and 2021-2022 F-650, F750 vehicles. Biodiesel deposits may form on the pump drivetrain roller components, which could...
• 22V-013 (January 14, 2022) - FUEL SYSTEM, DIESEL: Ford Motor Company (Ford) is recalling certain 2021 Super Duty F-250, F-350, F-450, F-550, F-600, and Medium Duty F-650 and F-750 vehicles equipped with 6.7L diesel engines. A small void may be present in the top-center...
• 21V-536 (July 15, 2021) - POWER TRAIN:AXLE ASSEMBLY: Ford Motor Company (Ford) is recalling certain 2020-2021 F-350 Super Duty pickup trucks equipped with 6.7L diesel engines and Dana model 275 rear axles. The rear axle housing may not support the load of the pickup truck...

Matched by the model and model year NHTSA lists for each recall - a recall often covers only part of a year's production, so read its text for the build dates and versions it names. Whether a recall is still open on your VIN is not known here; check nhtsa.gov/recalls. All recalls, investigations and bulletins for this engine: /recalls/ford-powerstroke-6_7/

Reference for this truck