Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 389

1XPXDP9X9MD735939 · Truck-Tractor · TRUCK
Carriers run under2
26 mo
Inspections3
all-time
OOS inspections1
of 3
First seenJan 17, 2024
WA
Last seenMar 13, 2026
IA
Inspected under 2 different carriers in 26 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
1XPXDP9X9MD735939
Make
Peterbilt
Model
389
Model year
2021
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Aug 1, 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 · Jan 17, 2024 – Mar 13, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 13, 2026IAIII · Driver-only1—BYRON L LANG INC 7752904KU5A/MO
Dec 4, 2024WVIII · Driver-only1—KEANE THUMMEL TRUCKING INC 248505DF1134/IA
Jan 17, 2024WAII · Walk-around2OOSKEANE THUMMEL TRUCKING INC 248505DF1134/IA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
BYRON L LANG INC77529Mar 13, 2026Mar 13, 20261MO
KEANE THUMMEL TRUCKING INC248505Jan 17, 2024Dec 4, 20242IA
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.
04KU5AMO—BYRON L LANG INCMar 13, 2026 → Mar 13, 20261
DF1134IA—KEANE THUMMEL TRUCKING INCJan 17, 2024 → Dec 4, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 1, 2026