Factory build sheet
2003 Ford Focus ZX5
Build 3FAFP37Z-3 · 2.3L 4cyl · Hatchback
VIN positions 1 through 8 read 3FAFP37Z and position 10 reads 3. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.
Every Focus whose VIN starts 3FAFP37Z and carries 3 in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 147 of them.
- Decoded Jul 7, 2026
- 147 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
- 2.3 L
- Cylinders
- 4
- Configuration
- In-Line
- Engine model
- PZEV
- Engine manufacturer
- Ford
- Valve train
- Dual Overhead Cam (DOHC)
- Horsepower
- 144 hp
- Fuel type
- Gasoline
Body & chassis
- Body class
- Hatchback/Liftback/Notchback
- NHTSA body type
- PASSENGER CAR
- Doors
- 5
- Manufacturer
- FORD MOTOR COMPANY, MEXICO
Weight rating
- GVWR class
- Class 1
- GVWR
- 6,000 lb or less
Gross vehicle weight rating is the loaded ceiling set by the manufacturer, not the car's own weight.
The same build, other model years
Ford used the VIN pattern 3FAFP37Z for 2 model years. Nothing but the year changes between these pages, so the price gap between them is depreciation on an identical car.
-
2003 You are here code 3
- 2004 ZX5 2.3L 4cyl Hatchback · 211 vehicles code 4
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 | 3FA | FORD MOTOR COMPANY, MEXICO · World manufacturer identifier |
| 4–8 | FP37Z | Model, body style, engine and restraint system |
| 9 | × | Check digit — computed per vehicle, not part of the build |
| 10 | 3 | Model year — 2003 |
| 11 | × | Assembly plant |
| 12–17 | ×××××× | Production sequence number, unique to each vehicle |
147 vehicles carry this build
Every VIN we have decoded to 3FAFP37Z-3 shares the specification above.
- 147 Known VINs
- 1 Listed for sale now
Cars are filed by a fixed rule based on the VIN, so a car never moves between groups.
Neighboring configurations
Other factory configurations of the Focus, each with its own build sheet. The set is fixed by the VIN patterns themselves, so it does not shuffle as prices or inventory move.
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 147 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.