Equipment unit · VIN-decoded · NHTSA vPIC

2021 Appalachian Trailer Sales

541GG4029MM001397 · TRAILER
Carriers run under1
29 mo
Inspections22
all-time
OOS inspections7
of 22
First seenDec 4, 2023
SC
Last seenMay 13, 2026
OK
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
541GG4029MM001397
Make
Appalachian Trailer Sales
Model
Not decoded
Model year
2021
Body class
Not decoded
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 15, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
541

Deterministic · VIN positions 1–3.

Vehicle descriptor section
GG402

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
1991 or 2021

Position 10 repeats every 30 years; both candidates are retained and neither is silently selected.

North American serial sequence
001397

Deterministic · positions 12–17 for a North American WMI.

Sourced platform inference

The prefix store publishes only at support ≥ 3 and purity ≥ 90%. Prefix confidence is shown beside every established platform claim.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

Federal observation (NHTSA vPIC)

What the federal corpus observed directly for this exact VIN — independent of, and sometimes more specific than, the prefix-level inference above.

Observed model year
2021

Observed directly for this VIN via NHTSA vPIC.

Observed make
APPALACHIAN TRAILER SALES

Observed directly for this VIN via NHTSA vPIC.

Observed model
Not established

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Not established

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRAILER

Observed directly for this VIN via NHTSA vPIC.

GVWR
Not established

Observed directly for this VIN via NHTSA vPIC.

Not established

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Dec 4, 2023 – May 13, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 13, 2026OKI · Full0SUPREME HEAVY HAULING CORP 3605932452723X/MD
May 13, 2026OKI · Full0SUPREME HEAVY HAULING CORP 3605932452723X/MD
May 13, 2026OKI · Full0SUPREME HEAVY HAULING CORP 3605932452723X/MD
May 12, 2026OKI · Full2OOSSUPREME HEAVY HAULING CORP 3605932452723X/MD
May 12, 2026OKI · Full2OOSSUPREME HEAVY HAULING CORP 3605932452723X/MD
May 12, 2026OKI · Full2OOSSUPREME HEAVY HAULING CORP 3605932452723X/MD
Mar 24, 2026TNI · Full0SUPREME HEAVY HAULING CORP 3605932452723X/MD
Feb 27, 2026PAII · Walk-around1OOSSUPREME HEAVY HAULING CORP 3605932452723X/MD
Oct 28, 2025TNI · Full2SUPREME HEAVY HAULING CORP 3605932452723X/MD
Oct 8, 2025NJII · Walk-around2SUPREME HEAVY HAULING CORP 3605932452723X/MD
Aug 15, 2025TNI · Full0SUPREME HEAVY HAULING CORP 3605932423635X/MD
Jul 8, 2025VAIII · Driver-only0SUPREME HEAVY HAULING CORP 3605932423635X/GA
Mar 13, 2025TNI · Full0SUPREME HEAVY HAULING CORP 3605932452723X/MD
Mar 11, 2025FLII · Walk-around21SUPREME HEAVY HAULING CORP 3605932452723X/MD
Dec 5, 2024KYI · Full0SUPREME HEAVY HAULING CORP 3605932423635X/MD
Nov 7, 2024MOI · Full1SUPREME HEAVY HAULING CORP 3605932423635X/MD
Oct 30, 2024INII · Walk-around22OOSSUPREME HEAVY HAULING CORP 3605932423635X/MD
Sep 20, 2024TNI · Full1SUPREME HEAVY HAULING CORP 3605932423635X/MD
Jul 11, 2024KYI · Full1OOSSUPREME HEAVY HAULING CORP 3605932411516X/MD
May 24, 2024MDII · Walk-around2OOSSUPREME HEAVY HAULING CORP 3605932411516X/MD
Feb 20, 2024OHIII · Driver-only0SUPREME HEAVY HAULING CORP 3605932378933X/MD
Dec 4, 2023SCI · Full7SUPREME HEAVY HAULING CORP 3605932411516X/MD
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SUPREME HEAVY HAULING CORP3605932Dec 4, 2023May 13, 202622TX
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.
452723XMD2SUPREME HEAVY HAULING CORPMar 11, 2025May 13, 202612
423635XMDSUPREME HEAVY HAULING CORPSep 20, 2024Aug 15, 20255
423635XGASUPREME HEAVY HAULING CORPJul 8, 2025Jul 8, 20251
411516XMDSUPREME HEAVY HAULING CORPDec 4, 2023Jul 11, 20243
378933XMDSUPREME HEAVY HAULING CORPFeb 20, 2024Feb 20, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 15, 2026