1983 Great Dane Trailers
Decoded identity
From the 17-character VIN via NHTSA vPIC
- VIN
- 1GRAA0621DT580945
- Make
- Great Dane Trailers
- Model
- Great Dane Trailers
- Model year
- 1983
- Body class
- Trailer
- Vehicle type
- TRAILER
- GVWR
- Not decoded
- Decoded at
- Aug 18, 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.
Deterministic · positions 12–17 for a North American WMI.
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 · 24,927 decoded VINs at 100.0% prefix purity.
Prefix basis · 24,927 decoded VINs at 100.0% prefix purity.
Sourced label · prefix basis 24,927 decoded VINs at 100.0% prefix purity.
No sourced generation label is established.
No source established for this field.
No sourced cab label is established.
No source established for this field.
Not established
- generation
- cab type
These are withheld claims, not negative findings.
Inspection history
Every roadside inspection of this VIN, newest first · Sep 29, 2023 – Apr 2, 2026
Carriers this unit has run under
2 distinct carriers · grouped by DOT · newest activity first
Plate & unit-number history
The same truck under different plate registrations across carriers