Equipment unit · VIN-decoded · NHTSA vPIC

1999 Diamond

1D9MF1539XS235064 · TRAILER
Carriers run under1
11 mo
Inspections6
all-time
OOS inspections2
of 6
First seenMay 26, 2024
KS
Last seenApr 11, 2025
IN
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1D9MF1539XS235064
Make
Diamond
Model
Not decoded
Model year
1999
Body class
Not decoded
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 22, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
1D9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
MF153

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
1999 or 2029

Position 10 repeats every 30 years; both candidates are retained and neither is silently selected.

North American serial sequence
235064

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

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 model year
1999

Observed directly for this VIN via NHTSA vPIC.

Observed make
DIAMOND

Observed directly for this VIN via NHTSA vPIC.

Observed model
Not established

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Not established

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRAILER

Observed directly for this VIN via NHTSA vPIC.

GVWR
Not established

Observed directly for this VIN via NHTSA vPIC.

Not established

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · May 26, 2024 – Apr 11, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 11, 2025INII · Walk-around8SOUTHERN HEAVY HAUL INC 23499305274021/ME
Apr 9, 2025ILII · Walk-around14OOSSOUTHERN HEAVY HAUL INC 23499305274021/ME
Apr 7, 2025MOII · Walk-around1SOUTHERN HEAVY HAUL INC 23499305274021/ME
Jun 13, 2024INII · Walk-around0SOUTHERN HEAVY HAUL INC 2349930533-6701/ME
Jun 7, 2024MOII · Walk-around0SOUTHERN HEAVY HAUL INC 23499305179552/ME
May 26, 2024KSI · Full3OOSSOUTHERN HEAVY HAUL INC 2349930527021/ME
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SOUTHERN HEAVY HAUL INC2349930May 26, 2024Apr 11, 20256TX
Names are left-joined from the FMCSA census; a DOT with no census match falls back to its number.
04

Plate & unit-number history

The same truck under different plate registrations across carriers

PlateState / prov.Unit no.CarrierDate rangeInsp.
5274021MESOUTHERN HEAVY HAUL INCApr 7, 2025Apr 11, 20253
533-6701MESOUTHERN HEAVY HAUL INCJun 13, 2024Jun 13, 20241
5179552MESOUTHERN HEAVY HAUL INCJun 7, 2024Jun 7, 20241
527021MESOUTHERN HEAVY HAUL INCMay 26, 2024May 26, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 22, 2026