Equipment unit · VIN-decoded · NHTSA vPIC

2024 Silverback Trailer SILVERBACK

4S9KC5330RH623500 · Trailer · TRAILER
Carriers run under4
10 mo
Inspections8
all-time
OOS inspections4
of 8
First seenSep 8, 2025
WY
Last seenJul 27, 2026
CA
Inspected under 4 different carriers in 10 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
4S9KC5330RH623500
Make
Silverback Trailer
Model
SILVERBACK
Model year
2024
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 24, 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
KC533

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
1994 or 2024

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

North American serial sequence
623500

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 · 18 decoded VINs at 100.0% prefix purity.

Model
SILVERBACK

Prefix basis · 18 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
2024

Observed directly for this VIN via NHTSA vPIC.

Observed make
SILVERBACK TRAILER

Observed directly for this VIN via NHTSA vPIC.

Observed model
SILVERBACK

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 · Sep 8, 2025 – Jul 27, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 27, 2026CAII · Walk-around2OOSZTR GROUP LLC 7193260995772ST/IL
Jun 24, 2026TXII · Walk-around5OOSMILIVA INC 4219340995772ST/IL
Apr 15, 2026MAIII · Driver-only1AVDB TRANS LLC 4521854997524ST/IL
Mar 4, 2026MOI · Full3OOSMILIVA INC 4219340995772ST/IL
Dec 12, 2025TNI · Full0CARGOPROF LLC 4480366995772ST/IL
Nov 7, 2025TNI · Full0CARGOPROF LLC 4480366995772ST/IL
Sep 9, 2025WYI · Full0MILIVA INC 4219340995772ST/IL
Sep 8, 2025WYI · Full1OOSMILIVA INC 4219340995772ST/IL
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ZTR GROUP LLC7193260Jul 27, 2026Jul 27, 20261IL
MILIVA INC4219340Sep 8, 2025Jun 24, 20264IL
AVDB TRANS LLC4521854Apr 15, 2026Apr 15, 20261IL
CARGOPROF LLC4480366Nov 7, 2025Dec 12, 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.
995772STIL2ZTR GROUP LLCJul 27, 2026Jul 27, 20261
995772STIL2MILIVA INCSep 8, 2025Jun 24, 20264
997524STILAVDB TRANS LLCApr 15, 2026Apr 15, 20261
995772STILCARGOPROF LLCNov 7, 2025Dec 12, 20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026