Equipment unit · VIN-decoded · NHTSA vPIC

1983 Great dane trailers Great Dane Trailers

1GRAP0621DT578689 · Trailer · TRAILER
Carriers run under3
18 mo
Inspections3
all-time
OOS inspections1
of 3
First seenJul 23, 2023
MS
Last seenJan 8, 2025
AZ
Inspected under 3 different carriers in 18 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
1GRAP0621DT578689
Make
Great dane trailers
Model
Great Dane Trailers
Model year
1983
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 20, 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 23, 2023 – Jan 8, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 8, 2025AZII · Walk-around1—EMPAC TRANSPORTATION INC 3195060K1A99W/AZ
Dec 16, 2024AZII · Walk-around3OOSAAR TRANSPORT SERVICES LLC 4242014K1A99W/AZ
Jul 23, 2023MSIII · Driver-only0—KNIGHT TRANSPORTATION INC 428823P261164/IN
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
EMPAC TRANSPORTATION INC3195060Jan 8, 2025Jan 8, 20251AZ
AAR TRANSPORT SERVICES LLC4242014Dec 16, 2024Dec 16, 20241AZ
KNIGHT TRANSPORTATION INC428823Jul 23, 2023Jul 23, 20231AZ
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.
K1A99WAZ—EMPAC TRANSPORTATION INCJan 8, 2025 → Jan 8, 20251
K1A99WAZ—AAR TRANSPORT SERVICES LLCDec 16, 2024 → Dec 16, 20241
P261164IN—KNIGHT TRANSPORTATION INCJul 23, 2023 → Jul 23, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 20, 2026