Equipment unit · VIN-decoded · NHTSA vPIC

2021 Diamond t trailers mfg. co. Diamond T Trailers Mfg. Co

5FWFP3223MR028312 · Trailer · TRAILER
Carriers run under2
8 mo
Inspections7
all-time
OOS inspections1
of 7
First seenNov 28, 2025
OK
Last seenJul 21, 2026
OK
Inspected under 2 different carriers in 8 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
5FWFP3223MR028312
Make
Diamond t trailers mfg. co.
Model
Diamond T Trailers Mfg. Co
Model year
2021
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 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 · Nov 28, 2025 – Jul 21, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 21, 2026OKI · Full1OOSGORE NITROGEN PUMPING SERVICE LLC 941950DN9195/OK
Jul 16, 2026OKI · Full0—GORE ENERGY LLC 4536339DN9195/OK
May 13, 2026OKI · Full0—GORE NITROGEN PUMPING SERVICE LLC 941950DN9195/OK
May 13, 2026OKI · Full0—GORE NITROGEN PUMPING SERVICE LLC 941950DN9195/OK
May 13, 2026OKI · Full0—GORE NITROGEN PUMPING SERVICE LLC 941950DN9195/OK
Dec 12, 2025OKI · Full0—GORE NITROGEN PUMPING SERVICE LLC 941950DN9195/OK
Nov 28, 2025OKI · Full1—GORE NITROGEN PUMPING SERVICE LLC 941950BE4698/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
GORE NITROGEN PUMPING SERVICE LLC941950Nov 28, 2025Jul 21, 20266OK
GORE ENERGY LLC4536339Jul 16, 2026Jul 16, 20261OK
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.
DN9195OK2GORE NITROGEN PUMPING SERVICE LLCDec 12, 2025 → Jul 21, 20265
DN9195OK2GORE ENERGY LLCJul 16, 2026 → Jul 16, 20261
BE4698OK—GORE NITROGEN PUMPING SERVICE LLCNov 28, 2025 → Nov 28, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 1, 2026