Equipment unit · VIN-decoded · NHTSA vPIC

2025 Silverback Trailer SILVERBACK

4S9KC5328SH623712 · Trailer · TRAILER
Carriers run under2
14 mo
Inspections5
all-time
OOS inspections2
of 5
First seenMay 14, 2025
IA
Last seenJul 23, 2026
TX
Inspected under 2 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
4S9KC5328SH623712
Make
Silverback Trailer
Model
SILVERBACK
Model year
2025
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 31, 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
KC532

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

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
623712

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
SILVERBACK TRAILER

Prefix basis · 49 decoded VINs at 100.0% prefix purity.

Model
SILVERBACK

Prefix basis · 49 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.

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 · May 14, 2025 – Jul 23, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 23, 2026TXII · Walk-around3OOSPRIME TRANS LLC 4120654133401PT/SC
Jul 23, 2026TXII · Walk-around3OOSPRIME TRANS LLC 4120654133401PT/SC
Jul 6, 2026INI · Full2—PRIME TRANS LLC 4120654U0729UWH/SC
Jun 16, 2025MTIII · Driver-only1—DW SMART LLC 34026791005157ST/IL
May 14, 2025IAI · Full1—DW SMART LLC 34026791005157ST/IL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
PRIME TRANS LLC4120654Jul 6, 2026Jul 23, 20263SC
DW SMART LLC3402679May 14, 2025Jun 16, 20252IL
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.
133401PTSC2PRIME TRANS LLCJul 23, 2026 → Jul 23, 20262
U0729UWHSC2PRIME TRANS LLCJul 6, 2026 → Jul 6, 20261
1005157STIL—DW SMART LLCMay 14, 2025 → Jun 16, 20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 31, 2026