Equipment unit · VIN-decoded · NHTSA vPIC

2021 Kenworth T8 Series

3BKDX4TX4MF427479 · Truck · INCOMPLETE VEHICLE
Carriers run under3
23 mo
Inspections6
all-time
OOS inspections0
of 6
First seenMar 1, 2024
NJ
Last seenFeb 17, 2026
PA
Inspected under 3 different carriers in 23 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
3BKDX4TX4MF427479
Make
Kenworth
Model
T8 Series
Model year
2021
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 27, 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
3BK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
DX4TX

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
427479

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
KENWORTH

Observed directly for this VIN via NHTSA vPIC.

Observed model
T8 Series

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 8: 33,001 lb and above (14,969 kg and above)

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 · Mar 1, 2024 – Feb 17, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 17, 2026PAIII · Driver-only0UMBRIAC TRUCKING LLC 2396244ZXM7024/PA
Oct 7, 2025PAII · Walk-around2UMBRIAC TRUCKING LLC 2396244ZXM7024/PA
Sep 25, 2024PAIII · Driver-only5CMA SITE DEVELOPMENT LLC 4247389XKFN19/NJ
Sep 16, 2024NJIII · Driver-only3CRA SITE LAWN & LAND DEVELOPMENT INC 2934108XKFN19/NJ
Aug 21, 2024PAII · Walk-around8CRA SITE LAWN & LAND DEVELOPMENT INC 2934108XKFN19/NJ
Mar 1, 2024NJIII · Driver-only1CRA SITE LAWN & LAND DEVELOPMENT INC 2934108XKFN19/NJ
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
UMBRIAC TRUCKING LLC2396244Oct 7, 2025Feb 17, 20262PA
CMA SITE DEVELOPMENT LLC4247389Sep 25, 2024Sep 25, 20241NJ
CRA SITE LAWN & LAND DEVELOPMENT INC2934108Mar 1, 2024Sep 16, 20243NJ
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.
ZXM7024PAUMBRIAC TRUCKING LLCOct 7, 2025Feb 17, 20262
XKFN19NJCMA SITE DEVELOPMENT LLCSep 25, 2024Sep 25, 20241
XKFN19NJCRA SITE LAWN & LAND DEVELOPMENT INCMar 1, 2024Sep 16, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 27, 2026