Equipment unit · VIN-decoded · NHTSA vPIC

2015 Kalyn Siebert

5DDKD3921F1007542 · Trailer · TRAILER
Carriers run under2
6 mo
Inspections3
all-time
OOS inspections3
of 3
First seenAug 25, 2025
TX
Last seenFeb 4, 2026
TX
Inspected under 2 different carriers in 6 months
A unit that bounces between many operators can indicate slip-seating, heavy sub-haul, or double-brokering. Review the carrier timeline below for load integrity — context for human judgment, not a verdict.
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
5DDKD3921F1007542
Make
Kalyn Siebert
Model
Kalyn Siebert
Model year
2015
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 9, 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
5DD

Deterministic · VIN positions 1–3.

Vehicle descriptor section
KD392

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1985 or 2015

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

North American serial sequence
007542

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.

Make
KALYN SIEBERT

Prefix basis · 31 decoded VINs at 100.0% prefix purity.

Model
Kalyn Siebert

Prefix basis · 31 decoded VINs at 100.0% prefix purity.

Model line
Not established

No sourced model-line label is established.

No source established for this field.

Generation
Not established

No sourced generation label is established.

No source established for this field.

Cab type
Not established

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 model year
2015

Observed directly for this VIN via NHTSA vPIC.

Observed make
KALYN SIEBERT

Observed directly for this VIN via NHTSA vPIC.

Observed model
Kalyn Siebert

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Trailer

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

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Aug 25, 2025 – Feb 4, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 4, 2026TXII · Walk-around7OOSQ TRANSPORT LIMITED LIABILITY COMPANY 3276712DQ7940/OK
Dec 31, 2025TXII · Walk-around6OOSQ TRANSPORT LIMITED LIABILITY COMPANY 3276712DQ7940/OK
Aug 25, 2025TXII · Walk-around8OOSJBL XPRESS TRANSPORT LLC 4366535DQ7832/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
Q TRANSPORT LIMITED LIABILITY COMPANY3276712Dec 31, 2025Feb 4, 20262TX
JBL XPRESS TRANSPORT LLC4366535Aug 25, 2025Aug 25, 20251TX
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.
DQ7940OKQ TRANSPORT LIMITED LIABILITY COMPANYDec 31, 2025Feb 4, 20262
DQ7832OKJBL XPRESS TRANSPORT LLCAug 25, 2025Aug 25, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 9, 2026