Equipment unit · VIN-decoded · NHTSA vPIC

2020 Silverback Trailer

4S9GF4029LH623053 · TRAILER
Carriers run under2
8 mo
Inspections7
all-time
OOS inspections6
of 7
First seenNov 16, 2025
TX
Last seenJul 16, 2026
ID
Inspected under 2 different carriers in 8 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
4S9GF4029LH623053
Make
Silverback Trailer
Model
Not decoded
Model year
2020
Body class
Not decoded
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 10, 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
4S9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
GF402

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
1990 or 2020

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

North American serial sequence
623053

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
2020

Observed directly for this VIN via NHTSA vPIC.

Observed make
SILVERBACK TRAILER

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 · Nov 16, 2025 – Jul 16, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 16, 2026IDI · Full10OOSCOQUY TRUCKING LLC 4061196QB66HE/FL
Jul 16, 2026IDI · Full10OOSCOQUY TRUCKING LLC 4061196QB66HE/FL
Jun 23, 2026MSI · Full4OOSCOQUY TRUCKING LLC 4061196QB66HE/FL
Apr 7, 2026UTI · Full6OOSCOQUY TRUCKING LLC 4061196QB66HE/FL
Feb 27, 2026WIIII · Driver-only1OOSCOQUY TRUCKING LLC 4061196QB66HE/FL
Jan 12, 2026WAIII · Driver-only2COQUY TRUCKING LLC 4061196QB66HE/FL
Nov 16, 2025TXI · Full3OOSPUPO'S LLC 4259555QB66HE/FL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
COQUY TRUCKING LLC4061196Jan 12, 2026Jul 16, 20266FL
PUPO'S LLC4259555Nov 16, 2025Nov 16, 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.
QB66HEFL2COQUY TRUCKING LLCJan 12, 2026Jul 16, 20266
QB66HEFLPUPO'S LLCNov 16, 2025Nov 16, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 10, 2026