Equipment unit · VIN-decoded · NHTSA vPIC

2011 Peterbilt 386

1XPHD49X3BD133831 · Truck-Tractor · TRUCK
Carriers run under2
33 mo
Inspections9
all-time
OOS inspections2
of 9
First seenNov 27, 2023
TX
Last seenAug 3, 2026
TX
Inspected under 2 different carriers in 33 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
1XPHD49X3BD133831
Make
Peterbilt
Model
386
Model year
2011
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 21, 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
1XP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
HD49X

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

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
133831

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
PETERBILT

Prefix basis · 3,252 decoded VINs at 100.0% prefix purity.

Model
386

Prefix basis · 3,252 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.

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
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
386

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck-Tractor

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRUCK

Observed directly for this VIN via NHTSA vPIC.

GVWR
Class 8: 33,001 lb and above (14,969 kg and above)

Observed directly for this VIN via NHTSA vPIC.

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 · Nov 27, 2023 – Aug 3, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 3, 2026TXII · Walk-around0WITRON LLC 330289537P893N/TX
Jun 2, 2026TXII · Walk-around1WITRON LLC 330289551P783N/TX
Feb 17, 2026TXI · Full5WITRON LLC 330289564S647N/TX
Oct 29, 2025TXIII · Driver-only3WITRON LLC 330289555S437N/TX
Sep 30, 2025TXI · Full0STATEWIDE MATERIALS TRANSPORT LEASING LTD 193615753Z044W/TX
Apr 9, 2025TXI · Full4OOSSTATEWIDE MATERIALS TRANSPORT LEASING LTD 193615757N066N/TX
Sep 23, 2024TXII · Walk-around6OOSSTATEWIDE MATERIALS TRANSPORT LEASING LTD 193615723R760M/TX
Jan 31, 2024TXII · Walk-around1WITRON LLC 330289548S416M/TX
Nov 27, 2023TXII · Walk-around7WITRON LLC 330289559T357M/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WITRON LLC3302895Nov 27, 2023Aug 3, 20266TX
STATEWIDE MATERIALS TRANSPORT LEASING LTD1936157Sep 23, 2024Sep 30, 20253TX
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.
37P893NTX1WITRON LLCAug 3, 2026Aug 3, 20261
51P783NTXWITRON LLCJun 2, 2026Jun 2, 20261
64S647NTXWITRON LLCFeb 17, 2026Feb 17, 20261
55S437NTXWITRON LLCOct 29, 2025Oct 29, 20251
53Z044WTXSTATEWIDE MATERIALS TRANSPORT LEASING LTDSep 30, 2025Sep 30, 20251
57N066NTXSTATEWIDE MATERIALS TRANSPORT LEASING LTDApr 9, 2025Apr 9, 20251
23R760MTXSTATEWIDE MATERIALS TRANSPORT LEASING LTDSep 23, 2024Sep 23, 20241
48S416MTXWITRON LLCJan 31, 2024Jan 31, 20241
59T357MTXWITRON LLCNov 27, 2023Nov 27, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026