Equipment unit · VIN-decoded · NHTSA vPIC

2024 Polar tank trailer Polar Tank Trailer

1PMKF4329R1122774 · Trailer · TRAILER
Carriers run under2
23 mo
Inspections25
all-time
OOS inspections0
of 25
First seen07/22/2024
NM
Last seen06/18/2026
NM
Inspected under 2 different carriers in 23 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
1PMKF4329R1122774
Make
Polar tank trailer
Model
Polar Tank Trailer
Model year
2024
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
06/16/2026
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 · 07/22/2024 – 06/18/2026

DateStateLevelViol.OOSCarrier (DOT)Plate
06/18/2026NMII · Walk-around0—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
04/08/2026COIII · Driver-only1—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
04/01/2026NMII · Walk-around0—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
03/31/2026NMII · Walk-around1—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
02/10/2026NMII · Walk-around0—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
01/06/2026NMII · Walk-around0—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
11/11/2025NMII · Walk-around0—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
10/23/2025COI · Full4—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
10/21/2025NMII · Walk-around0—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
10/14/2025NMII · Walk-around0—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
09/03/2025NMII · Walk-around1—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
07/29/2025NMII · Walk-around0—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
07/28/2025COII · Walk-around2—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
06/20/2025NMII · Walk-around0—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
06/03/2025NMII · Walk-around0—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
04/24/2025NMIII · Driver-only0—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
04/10/2025NMII · Walk-around0—SIERRA TRANSPORTATION LLC 2196806SP160PWG/OK
04/07/2025NMIII · Driver-only0—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
02/10/2025NMIII · Driver-only0—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
01/02/2025COIII · Driver-only0—BRANDON BOYNTON 2196906CT8851/OK
11/12/2024NMII · Walk-around0—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
10/03/2024NMII · Walk-around0—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
09/04/2024NMII · Walk-around0—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
08/13/2024NMII · Walk-around0—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
07/22/2024NMII · Walk-around0—SIERRA TRANSPORTATION LLC 2196806CT8851/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SIERRA TRANSPORTATION LLC219680607/22/202406/18/202624OK
BRANDON BOYNTON219690601/02/202501/02/20251MN
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.
CT8851OK2SIERRA TRANSPORTATION LLC07/22/2024 → 06/18/202623
SP160PWGOK—SIERRA TRANSPORTATION LLC04/10/2025 → 04/10/20251
CT8851OK—BRANDON BOYNTON01/02/2025 → 01/02/20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 06/16/2026