Equipment unit · VIN-decoded · NHTSA vPIC

1999 Peterbilt 379

1XP5DB9X2XN489261 · Truck-Tractor · TRUCK
Carriers run under2
30 mo
Inspections4
all-time
OOS inspections0
of 4
First seenJul 20, 2023
OH
Last seenJan 6, 2026
ND
Inspected under 2 different carriers in 30 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
1XP5DB9X2XN489261
Make
Peterbilt
Model
379
Model year
1999
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 11, 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 · Jul 20, 2023 – Jan 6, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 6, 2026NDI · Full1—ZIMMERMAN TRANSPORT LLC 2458749MX2681/IA
Dec 16, 2024IAIII · Driver-only2—SHADOW CREEK TRANSPORT LLC 3879517FY4682/IA
Nov 18, 2023MTI · Full5—ZIMMERMAN TRANSPORT LLC 2458749VF3134/IA
Jul 20, 2023OHIII · Driver-only1—ZIMMERMAN TRANSPORT LLC 2458749VF3134/IA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ZIMMERMAN TRANSPORT LLC2458749Jul 20, 2023Jan 6, 20263IA
SHADOW CREEK TRANSPORT LLC3879517Dec 16, 2024Dec 16, 20241IA
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.
MX2681IA—ZIMMERMAN TRANSPORT LLCJan 6, 2026 → Jan 6, 20261
FY4682IA—SHADOW CREEK TRANSPORT LLCDec 16, 2024 → Dec 16, 20241
VF3134IA—ZIMMERMAN TRANSPORT LLCJul 20, 2023 → Nov 18, 20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 11, 2026