Equipment unit · VIN-decoded · NHTSA vPIC

2023 Monroe Towmaster

4KNBT2723PL161137 · Trailer · TRAILER
Carriers run under1
16 mo
Inspections3
all-time
OOS inspections2
of 3
First seenFeb 4, 2025
NC
Last seenJun 22, 2026
VA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
4KNBT2723PL161137
Make
Monroe Towmaster
Model
Monroe Towmaster
Model year
2023
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 9, 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
4KN

Deterministic · VIN positions 1–3.

Vehicle descriptor section
BT272

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1993 or 2023

Position 10 repeats every 30 years; both candidates are retained and neither is silently selected.

North American serial sequence
161137

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
MONROE TOWMASTER

Prefix basis · 6 decoded VINs at 100.0% prefix purity.

Model
Monroe Towmaster

Prefix basis · 6 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
2023

Observed directly for this VIN via NHTSA vPIC.

Observed make
MONROE TOWMASTER

Observed directly for this VIN via NHTSA vPIC.

Observed model
Monroe Towmaster

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Trailer

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRAILER

Observed directly for this VIN via NHTSA vPIC.

GVWR
Not established

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 · Feb 4, 2025 – Jun 22, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 22, 2026VAI · Full9OOSHOLTZMAN PROPANE LC 2018392345328TM/VA
Jun 22, 2026VAI · Full9OOSHOLTZMAN PROPANE LC 2018392345328TM/VA
Feb 4, 2025NCIII · Driver-only2HOLTZMAN PROPANE LC 2018392345327TM/VA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
HOLTZMAN PROPANE LC2018392Feb 4, 2025Jun 22, 20263VA
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.
345328TMVA2HOLTZMAN PROPANE LCJun 22, 2026Jun 22, 20262
345327TMVAHOLTZMAN PROPANE LCFeb 4, 2025Feb 4, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 9, 2026