Equipment unit · VIN-decoded · NHTSA vPIC

2024 Silverback trailer SILVERBACK

4S9KC5339RH623513 · Trailer · TRAILER
Carriers run under2
3 mo
Inspections6
all-time
OOS inspections4
of 6
First seenFeb 1, 2026
WY
Last seenMay 20, 2026
TN
Inspected under 2 different carriers in 3 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
4S9KC5339RH623513
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.
02

Inspection history

Every roadside inspection of this VIN, newest first · Feb 1, 2026 – May 20, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 20, 2026TNI · Full0—UNITRANSPORT LLC 4550986FQMC89/FL
May 19, 2026VAI · Full6OOSUNITRANSPORT LLC 4550986FQMC89/FL
May 14, 2026OHIII · Driver-only2—UNITRANSPORT LLC 4550986FQMC89/FL
Feb 7, 2026ARI · Full2OOSHAULDEX LLC 4489350FQMC89/FL
Feb 2, 2026IDI · Full6OOSHAULDEX LLC 4489350FQMC89/FL
Feb 1, 2026WYI · Full5OOSHAULDEX LLC 4489350FQMC89/FL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
UNITRANSPORT LLC4550986May 14, 2026May 20, 20263WA
HAULDEX LLC4489350Feb 1, 2026Feb 7, 20263ND
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.
FQMC89FL—UNITRANSPORT LLCMay 14, 2026 → May 20, 20263
FQMC89FL—HAULDEX LLCFeb 1, 2026 → Feb 7, 20263
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026