Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 337

2NP2HM6X8MM635112 · Truck · INCOMPLETE VEHICLE
Carriers run under1
35 mo
Inspections9
all-time
OOS inspections1
of 9
First seenAug 17, 2023
IN
Last seenJul 13, 2026
WV
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
2NP2HM6X8MM635112
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
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
2NP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
2HM6X

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

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
635112

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 · Aug 17, 2023 – Jul 13, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 13, 2026WVII · Walk-around0MOUNTAIN STATE AUTO AUCTION INC 515082BA552312/WV
Dec 17, 2025WVII · Walk-around2MOUNTAIN STATE AUTO AUCTION INC 515082BA542607/WV
Aug 28, 2025WVI · Full0MOUNTAIN STATE AUTO AUCTION INC 515082BA542607/WV
Feb 28, 2025WVIII · Driver-only1MOUNTAIN STATE AUTO AUCTION INC 515082BA542607/WV
Jun 11, 2024PAIII · Driver-only0MOUNTAIN STATE AUTO AUCTION INC 515082BA542607/WV
Apr 23, 2024KYI · Full0MOUNTAIN STATE AUTO AUCTION INC 515082BA542607/WV
Feb 9, 2024WVII · Walk-around0MOUNTAIN STATE AUTO AUCTION INC 515082BA542607/WV
Jan 23, 2024KYI · Full1MOUNTAIN STATE AUTO AUCTION INC 515082BA542607/WV
Aug 17, 2023INII · Walk-around1OOSMOUNTAIN STATE AUTO AUCTION INC 515082BA542607/WV
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MOUNTAIN STATE AUTO AUCTION INC515082Aug 17, 2023Jul 13, 20269WV
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.
BA552312WV1MOUNTAIN STATE AUTO AUCTION INCJul 13, 2026Jul 13, 20261
BA542607WVMOUNTAIN STATE AUTO AUCTION INCAug 17, 2023Dec 17, 20258
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026