Equipment unit · VIN-decoded · NHTSA vPIC

4KNBF3026JL162992

Not yet decoded
Carriers run under1
5 mo
Inspections2
all-time
OOS inspections1
of 2
First seenOct 16, 2025
CA
Last seenMar 24, 2026
CA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

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
BF302

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
1988 or 2018

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

North American serial sequence
162992

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 · 3 decoded VINs at 100.0% prefix purity.

Model
Monroe Towmaster

Prefix basis · 3 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 · Oct 16, 2025 – Mar 24, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 24, 2026CAII · Walk-around1DIAMOND HOUSE CONSTRUCTION INC 44387184RR9897/CA
Oct 16, 2025CAI · Full5OOSDIAMOND HOUSE CONSTRUCTION INC 44387184RR9897/CA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DIAMOND HOUSE CONSTRUCTION INC4438718Oct 16, 2025Mar 24, 20262CA
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.
4RR9897CADIAMOND HOUSE CONSTRUCTION INCOct 16, 2025Mar 24, 20262
Sources: FMCSA SAFER · L&I · NHTSA vPIC