Equipment unit · VIN-decoded · NHTSA vPIC

2012 Peterbilt 388

1NPWX4EX0CD169184 · Truck · INCOMPLETE VEHICLE
Carriers run under2
22 mo
Inspections4
all-time
OOS inspections0
of 4
First seenMay 21, 2024
PA
Last seenMar 12, 2026
PA
Inspected under 2 different carriers in 22 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
1NPWX4EX0CD169184
Make
Peterbilt
Model
388
Model year
2012
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 7, 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
1NP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
WX4EX

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
1982 or 2012

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

North American serial sequence
169184

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 · 114 decoded VINs at 100.0% prefix purity.

Model
388

Prefix basis · 114 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
2012

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
388

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
INCOMPLETE VEHICLE

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 · May 21, 2024 – Mar 12, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 12, 2026PAIII · Driver-only0C & M WASTE WATER SERVICE LLC 1426773AH77970/PA
Jan 9, 2026PAII · Walk-around1C & M WASTE WATER SERVICE LLC 1426773AH77970/PA
Jan 23, 2025PAIII · Driver-only0PRINCIPLE ENTERPRISES LLC 1817105AH27452/PA
May 21, 2024PAI · Full2PRINCIPLE ENTERPRISES LLC 1817105AH27452/PA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
C & M WASTE WATER SERVICE LLC1426773Jan 9, 2026Mar 12, 20262PA
PRINCIPLE ENTERPRISES LLC1817105May 21, 2024Jan 23, 20252PA
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.
AH77970PAC & M WASTE WATER SERVICE LLCJan 9, 2026Mar 12, 20262
AH27452PAPRINCIPLE ENTERPRISES LLCMay 21, 2024Jan 23, 20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 7, 2026