Equipment unit · VIN-decoded · NHTSA vPIC

2021 Chevrolet Silverado

1GB3YSE71MF213988 · Incomplete - Chassis Cab (Single Cab) · INCOMPLETE VEHICLE
Carriers run under1
38 mo
Inspections3
all-time
OOS inspections2
of 3
First seenJun 20, 2023
NH
Last seenAug 13, 2026
NH
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1GB3YSE71MF213988
Make
Chevrolet
Model
Silverado
Model year
2021
Body class
Incomplete - Chassis Cab (Single Cab)
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 3: 10,001 - 14,000 lb (4,536 - 6,350 kg)
Decoded at
Aug 17, 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
1GB

Deterministic · VIN positions 1–3.

Vehicle descriptor section
3YSE7

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1991 or 2021

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

North American serial sequence
213988

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
2021

Observed directly for this VIN via NHTSA vPIC.

Observed make
CHEVROLET

Observed directly for this VIN via NHTSA vPIC.

Observed model
Silverado

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Incomplete - Chassis Cab (Single Cab)

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
INCOMPLETE VEHICLE

Observed directly for this VIN via NHTSA vPIC.

GVWR
Class 3: 10,001 - 14,000 lb (4,536 - 6,350 kg)

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 · Jun 20, 2023 – Aug 13, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 13, 2026NHI · Full8OOSCHASCO INC 937584C-INC11/NH
Aug 13, 2026NHI · Full8OOSCHASCO INC 937584C-INC11/NH
Jun 20, 2023NHIII · Driver-only2CHASCO INC 937584C-INC11/NH
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
CHASCO INC937584Jun 20, 2023Aug 13, 20263NH
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.
C-INC11NH1CHASCO INCJun 20, 2023Aug 13, 20263
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 17, 2026