Equipment unit · VIN-decoded · NHTSA vPIC

3HSDZTZR0MN196939

Not yet decoded
Carriers run under2
21 mo
Inspections2
all-time
OOS inspections1
of 2
First seenFeb 29, 2024
TN
Last seenNov 14, 2025
TN
Inspected under 2 different carriers in 21 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

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

Decode evidence & sources

Deterministic structure

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

World manufacturer identifier
3HS

Deterministic · VIN positions 1–3.

Vehicle descriptor section
DZTZR

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
1991 or 2021

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

North American serial sequence
196939

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.

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 · Feb 29, 2024 – Nov 14, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Nov 14, 2025TNIII · Driver-only0MERCURY FREIGHT SYSTEMS LLC 37582093749553/IN
Feb 29, 2024TNI · Full1OOSPAM TRANSPORT INC 1797523146789/UK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MERCURY FREIGHT SYSTEMS LLC3758209Nov 14, 2025Nov 14, 20251IN
PAM TRANSPORT INC179752Feb 29, 2024Feb 29, 20241AR
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.
3749553INMERCURY FREIGHT SYSTEMS LLCNov 14, 2025Nov 14, 20251
3146789UKPAM TRANSPORT INCFeb 29, 2024Feb 29, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC