Equipment unit · VIN-decoded · NHTSA vPIC

2007 Peterbilt 387

1XP7DB9X77D664957 · Truck-Tractor · TRUCK
Carriers run under2
31 mo
Inspections6
all-time
OOS inspections4
of 6
First seenNov 11, 2023
WA
Last seenJun 1, 2026
WA
Inspected under 2 different carriers in 31 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
1XP7DB9X77D664957
Make
Peterbilt
Model
387
Model year
2007
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 24, 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
7DB9X

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
2007 or 2037

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

North American serial sequence
664957

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 · 812 decoded VINs at 100.0% prefix purity.

Model
387

Prefix basis · 812 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
2007

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
387

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 11, 2023 – Jun 1, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 1, 2026WAI · Full3OOSNATIONAL TRANSPORTATION SERVICES INC 1754891D57948J/WA
Mar 10, 2026WAII · Walk-around1NATIONAL TRANSPORTATION SERVICES INC 1754891D57948J/WA
Sep 24, 2025WAIII · Driver-only0NATIONAL TRANSPORTATION SERVICES INC 1754891RP11316/WA
May 7, 2025WAII · Walk-around1OOSNATIONAL TRANSPORTATION SERVICES INC 1754891RP11316/WA
Sep 19, 2024WAII · Walk-around2OOSNATIONAL TRANSPORTATION SERVICES INC 1754891RP11316/WA
Nov 11, 2023WAI · Full13OOSGURMEET SINGH 1984340RP11316/WA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
NATIONAL TRANSPORTATION SERVICES INC1754891Sep 19, 2024Jun 1, 20265WA
GURMEET SINGH1984340Nov 11, 2023Nov 11, 20231WA
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.
D57948JWANATIONAL TRANSPORTATION SERVICES INCMar 10, 2026Jun 1, 20262
RP11316WANATIONAL TRANSPORTATION SERVICES INCSep 19, 2024Sep 24, 20253
RP11316WAGURMEET SINGHNov 11, 2023Nov 11, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026