Equipment unit · VIN-decoded · NHTSA vPIC

2014 Peterbilt 579

1XPBDP9X1ED232904 · Truck-Tractor · TRUCK
Carriers run under3
34 mo
Inspections7
all-time
OOS inspections6
of 7
First seenAug 15, 2023
TX
Last seenJun 14, 2026
TX
Inspected under 3 different carriers in 34 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
1XPBDP9X1ED232904
Make
Peterbilt
Model
579
Model year
2014
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
BDP9X

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1984 or 2014

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

North American serial sequence
232904

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 · 21,366 decoded VINs at 100.0% prefix purity.

Model
579

Prefix basis · 21,366 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
2014

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
579

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 · Aug 15, 2023 – Jun 14, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 14, 2026TXII · Walk-around4SS TRUCKING AND SERVICE LLC 339147595M786N/TX
Apr 4, 2026TXII · Walk-around5OOSRQL OIL FIELD EQUIPMENT LLC 442595336R683N/TX
Feb 28, 2026TXII · Walk-around5OOSRQL OIL FIELD EQUIPMENT LLC 442595326P620N/TX
Feb 18, 2026TXI · Full10OOSRQL OIL FIELD EQUIPMENT LLC 442595379T659N/TX
Sep 4, 2025TXII · Walk-around5OOSGORILLA TRUCKING AND SERVICE LLC 400798287R335N/TX
Apr 10, 2024TXII · Walk-around11OOSGORILLA TRUCKING AND SERVICE LLC 400798268R514M/TX
Aug 15, 2023TXII · Walk-around6OOSGORILLA TRUCKING AND SERVICE LLC 400798242R236M/TX
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SS TRUCKING AND SERVICE LLC3391475Jun 14, 2026Jun 14, 20261TX
RQL OIL FIELD EQUIPMENT LLC4425953Feb 18, 2026Apr 4, 20263TX
GORILLA TRUCKING AND SERVICE LLC4007982Aug 15, 2023Sep 4, 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.
95M786NTX1SS TRUCKING AND SERVICE LLCJun 14, 2026Jun 14, 20261
36R683NTXRQL OIL FIELD EQUIPMENT LLCApr 4, 2026Apr 4, 20261
26P620NTXRQL OIL FIELD EQUIPMENT LLCFeb 28, 2026Feb 28, 20261
79T659NTXRQL OIL FIELD EQUIPMENT LLCFeb 18, 2026Feb 18, 20261
87R335NTXGORILLA TRUCKING AND SERVICE LLCSep 4, 2025Sep 4, 20251
68R514MTXGORILLA TRUCKING AND SERVICE LLCApr 10, 2024Apr 10, 20241
42R236MTXGORILLA TRUCKING AND SERVICE LLCAug 15, 2023Aug 15, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026