Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 337

2NP2HM6X1MM744480 · Truck · INCOMPLETE VEHICLE
Carriers run under3
9 mo
Inspections3
all-time
OOS inspections0
of 3
First seenOct 15, 2025
KY
Last seenJul 22, 2026
KY
Inspected under 3 different carriers in 9 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
2NP2HM6X1MM744480
Make
Peterbilt
Model
337
Model year
2021
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 6: 19,501 - 26,000 lb (8,845 - 11,794 kg)
Decoded at
Aug 2, 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
2NP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
2HM6X

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
744480

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
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
337

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
INCOMPLETE VEHICLE

Observed directly for this VIN via NHTSA vPIC.

GVWR
Class 6: 19,501 - 26,000 lb (8,845 - 11,794 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 · Oct 15, 2025 – Jul 22, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 22, 2026KYIII · Driver-only3BOB SUMEREL TIRE CO INC 196324PLA8357/OH
Apr 30, 2026INI · Full2THE ZIEGLER TIRE AND SUPPLY COMPANY INC 301783PLA8357/OH
Oct 15, 2025KYII · Walk-around0INTERSTATE-TRUCKWAY INC 337460PLA8357/OH
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
BOB SUMEREL TIRE CO INC196324Jul 22, 2026Jul 22, 20261KY
THE ZIEGLER TIRE AND SUPPLY COMPANY INC301783Apr 30, 2026Apr 30, 20261OH
INTERSTATE-TRUCKWAY INC337460Oct 15, 2025Oct 15, 20251OH
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.
PLA8357OH1BOB SUMEREL TIRE CO INCJul 22, 2026Jul 22, 20261
PLA8357OHTHE ZIEGLER TIRE AND SUPPLY COMPANY INCApr 30, 2026Apr 30, 20261
PLA8357OHINTERSTATE-TRUCKWAY INCOct 15, 2025Oct 15, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 2, 2026