Equipment unit · VIN-decoded · NHTSA vPIC

2000 Cottrell 4808

1C9AY164XYG148621 · Trailer · TRAILER
Carriers run under3
23 mo
Inspections6
all-time
OOS inspections3
of 6
First seenJan 1, 2024
NM
Last seenDec 5, 2025
AZ
Inspected under 3 different carriers in 23 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
1C9AY164XYG148621
Make
Cottrell
Model
4808
Model year
2000
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 22, 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
1C9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
AY164

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
2000 or 2030

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

North American serial sequence
148621

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
COTTRELL

Prefix basis · 32 decoded VINs at 100.0% prefix purity.

Model
4808

Prefix basis · 32 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
2000

Observed directly for this VIN via NHTSA vPIC.

Observed make
COTTRELL

Observed directly for this VIN via NHTSA vPIC.

Observed model
4808

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Trailer

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRAILER

Observed directly for this VIN via NHTSA vPIC.

GVWR
Not established

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 · Jan 1, 2024 – Dec 5, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 5, 2025AZII · Walk-around6TNZ AUTO EXPRESS LLC 28731404UV9840/CA
Oct 21, 2025CAV · Vehicle-only0TNZ AUTO EXPRESS LLC 28731404UV9840/CA
Sep 19, 2025NMIII · Driver-only1TNZ AUTO EXPRESS LLC 28731404UV9840/CA
Oct 24, 2024AZII · Walk-around1OOSWEST EXPRESS TRANSPORTATION LLC 28881534UV9840/CA
Apr 3, 2024TXII · Walk-around4OOSROBERT AVETISYAN 19909804UV9840/CA
Jan 1, 2024NMII · Walk-around2OOSROBERT AVETISYAN 19909804TC1733/CA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TNZ AUTO EXPRESS LLC2873140Sep 19, 2025Dec 5, 20253CA
WEST EXPRESS TRANSPORTATION LLC2888153Oct 24, 2024Oct 24, 20241CA
ROBERT AVETISYAN1990980Jan 1, 2024Apr 3, 20242CA
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.
4UV9840CATNZ AUTO EXPRESS LLCSep 19, 2025Dec 5, 20253
4UV9840CAWEST EXPRESS TRANSPORTATION LLCOct 24, 2024Oct 24, 20241
4UV9840CAROBERT AVETISYANApr 3, 2024Apr 3, 20241
4TC1733CAROBERT AVETISYANJan 1, 2024Jan 1, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 22, 2026