Equipment unit · VIN-decoded · NHTSA vPIC

1999 Peterbilt 567

1XPCDB9XXXD497721 · Truck-Tractor · TRUCK
Carriers run under2
22 mo
Inspections6
all-time
OOS inspections3
of 6
First seenOct 9, 2023
CA
Last seenAug 23, 2025
NV
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
1XPCDB9XXXD497721
Make
Peterbilt
Model
567
Model year
1999
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 25, 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
CDB9X

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1999 or 2029

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

North American serial sequence
497721

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

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
1999

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
567

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

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Oct 9, 2023 – Aug 23, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 23, 2025NVII · Walk-around1WARREN E SIMS 336648881513A/NV
Jul 8, 2025NVII · Walk-around5OOSWARREN E SIMS 336648887153A/NV
Apr 9, 2024CAI · Full2OOSDOUBLE DOWN TRUCKING INC 247437276263A/NV
Jan 3, 2024CAII · Walk-around2OOSDOUBLE DOWN TRUCKING INC 247437276563A/NV
Oct 11, 2023CAII · Walk-around0DOUBLE DOWN TRUCKING INC 247437276263A/NV
Oct 9, 2023CAIII · Driver-only0DOUBLE DOWN TRUCKING INC 247437276263A/NV
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WARREN E SIMS3366488Jul 8, 2025Aug 23, 20252NV
DOUBLE DOWN TRUCKING INC2474372Oct 9, 2023Apr 9, 20244NV
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.
81513ANVWARREN E SIMSAug 23, 2025Aug 23, 20251
87153ANVWARREN E SIMSJul 8, 2025Jul 8, 20251
76263ANVDOUBLE DOWN TRUCKING INCOct 9, 2023Apr 9, 20243
76563ANVDOUBLE DOWN TRUCKING INCJan 3, 2024Jan 3, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 25, 2026