Equipment unit · VIN-decoded · NHTSA vPIC

2021 Ram 3500

3C7WRTAL6MG604165 · Incomplete - Chassis Cab (Single Cab) · INCOMPLETE VEHICLE
Carriers run under2
27 mo
Inspections10
all-time
OOS inspections5
of 10
First seenOct 3, 2023
MA
Last seenJan 13, 2026
MA
Inspected under 2 different carriers in 27 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
3C7WRTAL6MG604165
Make
Ram
Model
3500
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
Jun 19, 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
WRTAL

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

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
604165

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 · 201 decoded VINs at 100.0% prefix purity.

Model
3500

Prefix basis · 201 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
3500

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

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Oct 3, 2023 – Jan 13, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 13, 2026MAIII · Driver-only0SPIDER TRANSPORTATION LLC 4254374BN95877/CT
Dec 4, 2025PAI · Full10OOSSPIDER TRANSPORTATION LLC 4254374BN95877/CT
Oct 23, 2025RIIII · Driver-only5OOSSPIDER TRANSPORTATION LLC 4254374BN95877/CT
Jun 17, 2025MAIII · Driver-only4OOSSPIDER TRANSPORTATION LLC 4254374BN95877/CT
Nov 18, 2024CTI · Full11SPIDER TRANSPORTATION LLC 4254374BN95877/CT
Oct 4, 2024MAIII · Driver-only3SPIDER TRANSPORTATION LLC 4254374BN95877/CT
May 22, 2024MAIII · Driver-only0TNB BROTHERS TRANSPORT LLC 3915626AU40406/CT
Mar 19, 2024MAIII · Driver-only0TNB BROTHERS TRANSPORT LLC 3915626AU40406/CT
Jan 23, 2024MAII · Walk-around3OOSTNB BROTHERS TRANSPORT LLC 3915626AU40406/CT
Oct 3, 2023MAII · Walk-around3OOSTNB BROTHERS TRANSPORT LLC 3915626AU40406/CT
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SPIDER TRANSPORTATION LLC4254374Oct 4, 2024Jan 13, 20266CT
TNB BROTHERS TRANSPORT LLC3915626Oct 3, 2023May 22, 20244CT
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.
BN95877CTSPIDER TRANSPORTATION LLCOct 4, 2024Jan 13, 20266
AU40406CTTNB BROTHERS TRANSPORT LLCOct 3, 2023May 22, 20244
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 19, 2026