Equipment unit · VIN-decoded · NHTSA vPIC

2011 Trinity Trailer Mfg., Inc.

1T9SC4946BB656041 · Trailer · TRAILER
Carriers run under1
31 mo
Inspections6
all-time
OOS inspections1
of 6
First seenNov 8, 2023
WA
Last seenJun 16, 2026
WA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1T9SC4946BB656041
Make
Trinity Trailer Mfg., Inc.
Model
TRINITY TRAILER MFG., INC.
Model year
2011
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 23, 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
1T9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
SC494

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
1981 or 2011

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

North American serial sequence
656041

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
2011

Observed directly for this VIN via NHTSA vPIC.

Observed make
TRINITY TRAILER MFG., INC.

Observed directly for this VIN via NHTSA vPIC.

Observed model
TRINITY TRAILER MFG., INC.

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Trailer

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 · Nov 8, 2023 – Jun 16, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 16, 2026WAI · Full2WESTERN REFINERY SERVICES INC 69489884224AA/WA
Jan 9, 2025WAIII · Driver-only0WESTERN REFINERY SERVICES INC 69489884224AA/WA
Aug 13, 2024WAII · Walk-around2OOSWESTERN REFINERY SERVICES INC 69489884224AA/WA
May 16, 2024WAIII · Driver-only1WESTERN REFINERY SERVICES INC 69489884224AA/WA
Feb 12, 2024WAIII · Driver-only0WESTERN REFINERY SERVICES INC 69489884224AA/WA
Nov 8, 2023WAIII · Driver-only0WESTERN REFINERY SERVICES INC 69489884224AA/WA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WESTERN REFINERY SERVICES INC694898Nov 8, 2023Jun 16, 20266WA
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.
84224AAWA2WESTERN REFINERY SERVICES INCNov 8, 2023Jun 16, 20266
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 23, 2026