Equipment unit · VIN-decoded · NHTSA vPIC

2022 Monroe Towmaster

4KNBF2128NL160319 · Trailer · TRAILER
Carriers run under2
28 mo
Inspections3
all-time
OOS inspections3
of 3
First seenJul 11, 2023
MD
Last seenNov 24, 2025
MD
Inspected under 2 different carriers in 28 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
4KNBF2128NL160319
Make
Monroe Towmaster
Model
Monroe Towmaster
Model year
2022
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
BF212

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

Model year candidates
1992 or 2022

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

North American serial sequence
160319

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 · 5 decoded VINs at 100.0% prefix purity.

Model
Monroe Towmaster

Prefix basis · 5 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.

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 · Jul 11, 2023 – Nov 24, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Nov 24, 2025MDII · Walk-around1OOSPOWER TECHNOLOGIES SERVICES INC 14924005213547/ME
Apr 18, 2024MDI · Full5OOSCAHALL CONSTRUCTION LLC 10487465213547/ME
Jul 11, 2023MDI · Full2OOSCAHALL CONSTRUCTION LLC 10487465213547/ME
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
POWER TECHNOLOGIES SERVICES INC1492400Nov 24, 2025Nov 24, 20251MD
CAHALL CONSTRUCTION LLC1048746Jul 11, 2023Apr 18, 20242MD
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.
5213547ME—POWER TECHNOLOGIES SERVICES INCNov 24, 2025 → Nov 24, 20251
5213547ME—CAHALL CONSTRUCTION LLCJul 11, 2023 → Apr 18, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 9, 2026