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Fuel systemPart report

2021 Ford F-450 SD Fuel system Problems

Complaints
3about this part
Share
17%of 18 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the fuel system of the 2021 Ford F-450 SD, 17% of the 18 complaints for this model year. 4 recall campaigns on record are filed under a similar system.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“High pressure fuel pump failed while driving towing a trailer. Was able to pull over safely, entire fuel system needs to be replaced. Unknown if anything else was damaged yet. Vehicle is still in for repairs, estimate is between 9-13k parts and labor. I hope it didn't destroy the entire engine.”

NHTSA complaint #11633674, filed 2025-01

“Vehicle shut down while in motion on highway which caused for brakes and steering to fail. Vehicle was towed to sun state Ford dealership where they did a diagnosis. They found excessive amounts of metal in the high pressure fuel system. They had to replace the entire fuel system plus replaced all injectors which now has an open invoice of $15,923.97. After research we found out that there is a recall on the cp4 which is the manufactire recall number 24s78 and NHTSA recall number 24v957. Ford is not willing to cover the cost of the recall repairs and the dealership is not cooperating as well. …”

NHTSA complaint #11676722, filed 2025-07

“The contact owns a 2021 Ford F-450 SD. The contact received notification of NHTSA Campaign Number: 24V957000 (Fuel System, Diesel); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.”

NHTSA complaint #11687332, filed 2025-09

Related recalls

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2024111%
202214%
2021317%
2011233%
20081928%
20071275%
20062674%
20052460%
20042061%
2003638%
2002750%
2001730%
2000716%
199923%
1993120%

Other parts of the 2021 Ford F-450 SD

Electrical system
5 complaintsTransmission and drivetrain
4 complaintsBrakes
3 complaintsOther or unknown
3 complaintsBody and structure
3 complaintsEngine
2 complaintsLatches, locks and linkages
2 complaintsTires
1 complaints

← All problems reported for the 2021 Ford F-450 SD

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology