Equipment unit · VIN-decoded · NHTSA vPIC

2019 Peterbilt 579

1XPBD49X4KD628710 · Truck-Tractor · TRUCK
Carriers run under3
27 mo
Inspections18
all-time
OOS inspections7
of 18
First seenMar 14, 2024
TX
Last seenJun 16, 2026
AZ
Inspected under 3 different carriers in 27 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
1XPBD49X4KD628710
Make
Peterbilt
Model
579
Model year
2019
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 14, 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
BD49X

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1989 or 2019

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

North American serial sequence
628710

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 · 26,166 decoded VINs at 100.0% prefix purity.

Model
579

Prefix basis · 26,166 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
2019

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 · Mar 14, 2024 – Jun 16, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 16, 2026AZII · Walk-around6OOSMTT TRANSPORTATION SERVICES LLC 35915011P12073/TX
Apr 20, 2026TXII · Walk-around2OOSMTT TRANSPORTATION SERVICES LLC 35915011P12073/TX
Feb 19, 2026TXII · Walk-around7OOSMTT TRANSPORTATION SERVICES LLC 359150188W248W/TX
Dec 24, 2025TXII · Walk-around12OOSMTT TRANSPORTATION SERVICES LLC 359150148ES1L/MX
Nov 7, 2025TXIII · Driver-only2—MTT TRANSPORTATION SERVICES LLC 359150179W093W/TX
Aug 22, 2025TXIII · Driver-only4—MTT TRANSPORTATION SERVICES LLC 359150148ES1L/MX
Aug 14, 2025TXII · Walk-around8OOSMTT TRANSPORTATION SERVICES LLC 359150169X988V/TX
Dec 30, 2024USII · Walk-around1—MTT TRANSPORTATION SERVICES LLC 359150144T890M/TX
Nov 29, 2024TXII · Walk-around5—MTT TRANSPORTATION SERVICES LLC 359150110N862M/TX
Nov 28, 2024TXIII · Driver-only2—MTT TRANSPORTATION SERVICES LLC 35915014OU856M/TX
Nov 26, 2024USI · Full2—MTT TRANSPORTATION SERVICES LLC 359150140U856M/TX
Oct 18, 2024USII · Walk-around1—MTT TRANSPORTATION SERVICES LLC 359150130S805M/TX
Aug 22, 2024USII · Walk-around0—MTT TRANSPORTATION SERVICES LLC 359150148ES1L/MX
Aug 13, 2024USI · Full0—MTT TRANSPORTATION SERVICES LLC 359150148ES1L/MX
Jul 27, 2024TXII · Walk-around0—JULIO RODOLFO GONZALEZ OLVEDA 292750891R666M/TX
Jul 23, 2024USII · Walk-around3—JULIO RODOLFO GONZALEZ OLVEDA 292750848ES1L/MX
Apr 2, 2024TXI · Full5OOSTRANSFAZA SA DE CV 387540848ES1L/MX
Mar 14, 2024TXII · Walk-around2OOSJULIO RODOLFO GONZALEZ OLVEDA 292750848ES1L/MX
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MTT TRANSPORTATION SERVICES LLC3591501Aug 13, 2024Jun 16, 202614TX
JULIO RODOLFO GONZALEZ OLVEDA2927508Mar 14, 2024Jul 27, 20243MX
TRANSFAZA SA DE CV3875408Apr 2, 2024Apr 2, 20241CH
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.
1P12073TX1MTT TRANSPORTATION SERVICES LLCApr 20, 2026 → Jun 16, 20262
88W248WTX—MTT TRANSPORTATION SERVICES LLCFeb 19, 2026 → Feb 19, 20261
48ES1LMX—MTT TRANSPORTATION SERVICES LLCAug 13, 2024 → Dec 24, 20254
79W093WTX—MTT TRANSPORTATION SERVICES LLCNov 7, 2025 → Nov 7, 20251
69X988VTX—MTT TRANSPORTATION SERVICES LLCAug 14, 2025 → Aug 14, 20251
44T890MTX—MTT TRANSPORTATION SERVICES LLCDec 30, 2024 → Dec 30, 20241
10N862MTX—MTT TRANSPORTATION SERVICES LLCNov 29, 2024 → Nov 29, 20241
4OU856MTX—MTT TRANSPORTATION SERVICES LLCNov 28, 2024 → Nov 28, 20241
40U856MTX—MTT TRANSPORTATION SERVICES LLCNov 26, 2024 → Nov 26, 20241
30S805MTX—MTT TRANSPORTATION SERVICES LLCOct 18, 2024 → Oct 18, 20241
91R666MTX—JULIO RODOLFO GONZALEZ OLVEDAJul 27, 2024 → Jul 27, 20241
48ES1LMX—JULIO RODOLFO GONZALEZ OLVEDAMar 14, 2024 → Jul 23, 20242
48ES1LMX—TRANSFAZA SA DE CVApr 2, 2024 → Apr 2, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 14, 2026