Equipment unit · VIN-decoded · NHTSA vPIC

2021 Trinity Trailer Mfg., Inc.

1T9SC5344MB656279 · Trailer · TRAILER
Carriers run under2
31 mo
Inspections5
all-time
OOS inspections1
of 5
First seenJul 3, 2023
NE
Last seenFeb 19, 2026
SD
Inspected under 2 different carriers in 31 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
1T9SC5344MB656279
Make
Trinity Trailer Mfg., Inc.
Model
TRINITY TRAILER MFG., INC.
Model year
2021
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 28, 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
1T9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
SC534

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

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
656279

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
TRINITY TRAILER MFG., INC.

Prefix basis · 166 decoded VINs at 100.0% prefix purity.

Model
TRINITY TRAILER MFG., INC.

Prefix basis · 166 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
2021

Observed directly for this VIN via NHTSA vPIC.

Observed make
TRINITY TRAILER MFG., INC.

Observed directly for this VIN via NHTSA vPIC.

Observed model
TRINITY TRAILER MFG., INC.

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 · Jul 3, 2023 – Feb 19, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 19, 2026SDIII · Driver-only3GUNDERSON TRUCKING INC 449869DK9867/OK
Feb 3, 2026SDII · Walk-around4OOSGUNDERSON TRUCKING INC 449869DK9867/OK
Oct 16, 2024NEIII · Driver-only0STRELOW RANCH TRUCKING LLC 772800306879/BN
Jan 5, 2024NEII · Walk-around3STRELOW RANCH TRUCKING LLC 772800289016/NE
Jul 3, 2023NEIII · Driver-only1STRELOW RANCH TRUCKING LLC 772800289016/NE
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
GUNDERSON TRUCKING INC449869Feb 3, 2026Feb 19, 20262SD
STRELOW RANCH TRUCKING LLC772800Jul 3, 2023Oct 16, 20243NE
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.
DK9867OKGUNDERSON TRUCKING INCFeb 3, 2026Feb 19, 20262
306879BNSTRELOW RANCH TRUCKING LLCOct 16, 2024Oct 16, 20241
289016NESTRELOW RANCH TRUCKING LLCJul 3, 2023Jan 5, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026