Equipment unit · VIN-decoded · NHTSA vPIC

2021 Ram 4500

3C7WRLFL4MG517518 · Incomplete - Chassis Cab (Single Cab) · INCOMPLETE VEHICLE
Cab type · Crew Cab
Carriers run under1
13 mo
Inspections8
all-time
OOS inspections0
of 8
First seenNov 12, 2023
AR
Last seenDec 20, 2024
IA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
3C7WRLFL4MG517518
Make
Ram
Model
4500
Model year
2021
Body class
Incomplete - Chassis Cab (Single Cab)
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 4: 14,001 - 16,000 lb (6,350 - 7,258 kg)
Decoded at
Jun 21, 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
3C7

Deterministic · VIN positions 1–3.

Vehicle descriptor section
WRLFL

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

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
517518

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
RAM

Prefix basis · 219 decoded VINs at 100.0% prefix purity.

Model
4500

Prefix basis · 219 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
2021

Observed directly for this VIN via NHTSA vPIC.

Observed make
RAM

Observed directly for this VIN via NHTSA vPIC.

Observed model
4500

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 4: 14,001 - 16,000 lb (6,350 - 7,258 kg)

Observed directly for this VIN via NHTSA vPIC.

VIN-level rule claims

Rules published for individual VIN positions beyond the prefix — applied with the WMI, prefix, and model-year guards each rule was validated under. Year-scoped rules were checked against model year 2021, established by the federal observation agreeing with a position-10 candidate.

Cab type
Crew Cab

Manufacturer-published position rule · WMI/prefix/year guards applied by the store.

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 12, 2023 – Dec 20, 2024

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 20, 2024IAIII · Driver-only3OTR EXPRESS TRANSPORT LLC 3080814K151556/TX
Apr 1, 2024INII · Walk-around1OTR EXPRESS TRANSPORT LLC 3080814K151556/TX
Mar 20, 2024TNI · Full0OTR EXPRESS TRANSPORT LLC 3080814K151556/TX
Jan 27, 2024NMI · Full0OTR EXPRESS TRANSPORT LLC 3080814K151556/TX
Jan 26, 2024WYI · Full1OTR EXPRESS TRANSPORT LLC 3080814K151556/TX
Jan 6, 2024ARI · Full1OTR EXPRESS TRANSPORT LLC 3080814K151556/TX
Dec 7, 2023NMI · Full0OTR EXPRESS TRANSPORT LLC 3080814K151556/TX
Nov 12, 2023ARI · Full1OTR EXPRESS TRANSPORT LLC 3080814K151556/TX
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
OTR EXPRESS TRANSPORT LLC3080814Nov 12, 2023Dec 20, 20248TX
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.
K151556TXOTR EXPRESS TRANSPORT LLCNov 12, 2023Dec 20, 20248
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026