Factory build sheet
2021 Ford F-350
Build 1FD8X3FT-M · 6.7L 8cyl · Four-wheel drive · Incomplete - Chassis CAB (Double CAB)
VIN positions 1 through 8 read 1FD8X3FT and position 10 reads M. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.
Every F-350 whose VIN starts 1FD8X3FT and carries M in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 52 of them.
- Decoded Jul 7, 2026
- 52 known VINs
- 1 listed for sale now
Factory specification
As filed by Ford with NHTSA for this build. Fields the filing does not record are left out entirely — a missing row means no recorded value, not a missing feature.
Engine
- Displacement
- 6.7 L
- Cylinders
- 8
- Configuration
- V-Shaped
- Engine manufacturer
- Ford
- Horsepower
- 475 hp
- Fuel type
- Diesel
Drivetrain
- Drive type
- Four-wheel drive
- Brake system
- Hydraulic
Body & chassis
- Body class
- Incomplete - Chassis Cab (Double Cab)
- NHTSA body type
- INCOMPLETE VEHICLE
- Cab type
- Extra/Super/Quad/Double/King/Extended
- Series
- F-Series Super Duty - Single Rear Wheel
- Manufacturer
- FORD MOTOR COMPANY
Weight rating
- GVWR class
- Class 3
- GVWR
- 10,001–14,000 lb
Gross vehicle weight rating is the loaded ceiling set by the manufacturer, not the car's own weight.
How this VIN pattern is read
A 17-character VIN carries two kinds of information: what was built, and which one it is. This page is the first kind — the nine highlighted positions.
| Positions | Characters | What they encode |
|---|---|---|
| 1–3 | 1FD | FORD MOTOR COMPANY · World manufacturer identifier |
| 4–8 | 8X3FT | Model, body style, engine and restraint system |
| 9 | × | Check digit — computed per vehicle, not part of the build |
| 10 | M | Model year — 2021 |
| 11 | × | Assembly plant |
| 12–17 | ×××××× | Production sequence number, unique to each vehicle |
52 vehicles carry this build
Every VIN we have decoded to 1FD8X3FT-M shares the specification above.
- 52 Known VINs
- 1 Listed for sale now
- 1FD8X3FT 6MEC43656
- 1FD8X3FT 1MED44104
- 1FD8X3FT 6MED44101
- 1FD8X3FT 0MED10879
- 1FD8X3FT 5MED28441
- 1FD8X3FT 2MED47108
- 1FD8X3FT 1MEC55228
- 1FD8X3FT XMED58583
- 1FD8X3FT 5MEC54776
- 1FD8X3FT 6MEC43317
- 1FD8X3FT XMEC71136
- 1FD8X3FT XMED44103
- 1FD8X3FT 2MEC43668
- 1FD8X3FT 0MEC82422
- 1FD8X3FT 4MEE10483
- 1FD8X3FT 2MEC83037
- 1FD8X3FT 4MED98433
- 1FD8X3FT 1MEC43659
- 1FD8X3FT 9MEC82421
- 1FD8X3FT 2MEC55237
- 1FD8X3FT 5MED59155
- 1FD8X3FT 7MEC14991
- 1FD8X3FT 6MED98398
- 1FD8X3FT 8MED53477
- 1FD8X3FT 7MEC42628
- 1FD8X3FT 8MED74989
- 1FD8X3FT 4MEC83038
- 1FD8X3FT XMEC14998
- 1FD8X3FT 4MEC43655
- 1FD8X3FT 9MED10878
- 1FD8X3FT 4MEC76509
- 1FD8X3FT 0MEC55236
- 1FD8X3FT XMEC09591
- 1FD8X3FT 0MEC75793
- 1FD8X3FT 2MEC76511
- 1FD8X3FT 3MED56710
- 1FD8X3FT 2MED73000
- 1FD8X3FT 5MEC43664
- 1FD8X3FT 2MED82277
- 1FD8X3FT 1MED72999
- 1FD8X3FT 8MED98337
- 1FD8X3FT 9MEC42632
- 1FD8X3FT 5MEC75451
- 1FD8X3FT 0MEC83036
- 1FD8X3FT 5MED44400
- 1FD8X3FT 0MEC43667
- 1FD8X3FT 2MEC76508
- 1FD8X3FT 6MEC37484
- 1FD8X3FT 1MED58584
- 1FD8X3FT 5MEC14312
- 1FD8X3FT 8MEC76514
- 1FD8X3FT 9MED98623
Keep going
Where this data comes from
Specification fields are decoded from the manufacturer's filings in the NHTSA vPIC database, keyed on VIN positions 1–8 and 10. We publish the filed values as they stand and leave out anything the filing does not record.
Vehicle counts come from the 52 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.