2025 Trail Maxx
Decoded identity
From the 17-character VIN via NHTSA vPIC
- VIN
- 7WL3H4021ST000373
- Make
- Trail Maxx
- Model
- Trail Maxx
- Model year
- 2025
- Body class
- Trailer
- Vehicle type
- TRAILER
- GVWR
- Not decoded
- Decoded at
- Jun 25, 2026
Decode evidence & sources
Deterministic structure
These fields come directly from VIN positions and the published checksum calculation, with zero store IO.
Position 10 repeats every 30 years; both candidates are retained and neither is silently selected.
Not asserted outside North American WMIs; positions 12–17 may follow another regional convention.
No source established for this field.
Sourced platform inference
The prefix store publishes only at support ≥ 3 and purity ≥ 90%. Prefix confidence is shown beside every established platform claim.
Prefix basis · 469 decoded VINs at 100.0% prefix purity.
Prefix basis · 469 decoded VINs at 100.0% prefix purity.
No sourced model-line label is established.
No source established for this field.
No sourced generation label is established.
No source established for this field.
No sourced cab label is established.
No source established for this field.
Federal observation (NHTSA vPIC)
What the federal corpus observed directly for this exact VIN — independent of, and sometimes more specific than, the prefix-level inference above.
Observed directly for this VIN via NHTSA vPIC.
Observed directly for this VIN via NHTSA vPIC.
Observed directly for this VIN via NHTSA vPIC.
Observed directly for this VIN via NHTSA vPIC.
Observed directly for this VIN via NHTSA vPIC.
Observed directly for this VIN via NHTSA vPIC.
Not established
- serial sequence (positions 12–17 are only asserted for North American VINs)
- model line
- generation
- cab type
These are withheld claims, not negative findings.
Inspection history
Every roadside inspection of this VIN, newest first · Aug 23, 2025 – May 22, 2026
Carriers this unit has run under
4 distinct carriers · grouped by DOT · newest activity first
Plate & unit-number history
The same truck under different plate registrations across carriers