Equipment unit · VIN-decoded · NHTSA vPIC

2DM42JA48XRS21173

Not yet decoded
Carriers run under2
4 mo
Inspections2
all-time
OOS inspections0
of 2
First seenJul 10, 2025
CA
Last seenNov 14, 2025
CA
Inspected under 2 different carriers in 4 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

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

Decode evidence & sources

Deterministic structure

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

World manufacturer identifier
2DM

Deterministic · VIN positions 1–3.

Vehicle descriptor section
42JA4

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

Model year candidates
1999 or 2029

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

North American serial sequence
S21173

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.

Make
DI-MOND TRAILERS, INC.

Prefix basis · 326 decoded VINs at 100.0% prefix purity.

Model
Di-Mond Trailers, Inc.

Prefix basis · 326 decoded VINs at 100.0% prefix purity.

Model line
Not established

No sourced model-line label is established.

No source established for this field.

Generation
Not established

No sourced generation label is established.

No source established for this field.

Cab type
Not established

No sourced cab label is established.

No source established for this field.

Not established

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jul 10, 2025 – Nov 14, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Nov 14, 2025CAII · Walk-around0UNITED INTERSTATE GROUP LLC 4253326PC92617/IN
Jul 10, 2025CAII · Walk-around2SHEKEY TRANSPORTATION LLC 3459880PC92617/IN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
UNITED INTERSTATE GROUP LLC4253326Nov 14, 2025Nov 14, 20251CA
SHEKEY TRANSPORTATION LLC3459880Jul 10, 2025Jul 10, 20251UT
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.
PC92617INUNITED INTERSTATE GROUP LLCNov 14, 2025Nov 14, 20251
PC92617INSHEKEY TRANSPORTATION LLCJul 10, 2025Jul 10, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC