Equipment unit · VIN-decoded · NHTSA vPIC

2025 Trail Maxx

7WL3H4029ST000816 · Trailer · TRAILER
Carriers run under3
14 mo
Inspections7
all-time
OOS inspections1
of 7
First seenMay 14, 2025
SD
Last seenJul 24, 2026
TN
Inspected under 3 different carriers in 14 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
7WL3H4029ST000816
Make
Trail Maxx
Model
Trail Maxx
Model year
2025
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 25, 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
7WL

Deterministic · VIN positions 1–3.

Vehicle descriptor section
3H402

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
1995 or 2025

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

North American serial sequence
Not established

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.

Make
TRAIL MAXX

Prefix basis · 469 decoded VINs at 100.0% prefix purity.

Model
Trail Maxx

Prefix basis · 469 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
2025

Observed directly for this VIN via NHTSA vPIC.

Observed make
TRAIL MAXX

Observed directly for this VIN via NHTSA vPIC.

Observed model
Trail Maxx

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

  • serial sequence (positions 12–17 are only asserted for North American VINs)
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · May 14, 2025 – Jul 24, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 24, 2026TNI · Full0JNJ HAULING LLC 4285595MP0066/IA
Dec 8, 2025SDI · Full4RR BROTHERS TRANSPORT LLC 43219278X13860/NE
Aug 21, 2025PAI · Full0RR BROTHERS TRANSPORT LLC 43219278X13860/NE
Aug 21, 2025PAI · Full0RR BROTHERS TRANSPORT LLC 43219278X13860/NE
Jul 22, 2025COI · Full5OOSRR BROTHERS TRANSPORT LLC 43219278X13860/NE
Jul 1, 2025UTI · Full1RR BROTHERS TRANSPORT LLC 43219277944R97/TX
May 14, 2025SDI · Full0MVD TRANSPORTATION LLC 39995177944R97/TX
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
JNJ HAULING LLC4285595Jul 24, 2026Jul 24, 20261IA
RR BROTHERS TRANSPORT LLC4321927Jul 1, 2025Dec 8, 20255NE
MVD TRANSPORTATION LLC3999517May 14, 2025May 14, 20251NE
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.
MP0066IA2JNJ HAULING LLCJul 24, 2026Jul 24, 20261
8X13860NERR BROTHERS TRANSPORT LLCJul 22, 2025Dec 8, 20254
7944R97TXRR BROTHERS TRANSPORT LLCJul 1, 2025Jul 1, 20251
7944R97TXMVD TRANSPORTATION LLCMay 14, 2025May 14, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 25, 2026