Equipment unit · VIN-decoded · NHTSA vPIC

2019 Mac Trailer Manufacturing

5MADN4021KW045534 · Trailer · TRAILER
Carriers run under2
27 mo
Inspections6
all-time
OOS inspections1
of 6
First seenJun 20, 2023
SC
Last seenSep 17, 2025
KY
Inspected under 2 different carriers in 27 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
5MADN4021KW045534
Make
Mac Trailer Manufacturing
Model
MAC TRAILER MANUFACTURING
Model year
2019
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 25, 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
5MA

Deterministic · VIN positions 1–3.

Vehicle descriptor section
DN402

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1989 or 2019

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

North American serial sequence
045534

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
MAC TRAILER MANUFACTURING

Prefix basis · 615 decoded VINs at 100.0% prefix purity.

Model
MAC TRAILER MANUFACTURING

Prefix basis · 615 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
2019

Observed directly for this VIN via NHTSA vPIC.

Observed make
MAC TRAILER MANUFACTURING

Observed directly for this VIN via NHTSA vPIC.

Observed model
MAC TRAILER MANUFACTURING

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 · Jun 20, 2023 – Sep 17, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 17, 2025KYIII · Driver-only0WAYLON A JEFFERS 1130003206334T/TN
Dec 14, 2023KYI · Full2CLINCH MOUNTAIN TRANSPORT INC 487665206334T/TN
Dec 8, 2023TNIII · Driver-only0CLINCH MOUNTAIN TRANSPORT INC 487665206334T/TN
Dec 7, 2023GAIII · Driver-only1CLINCH MOUNTAIN TRANSPORT INC 487665206334T/GA
Oct 18, 2023KYII · Walk-around1CLINCH MOUNTAIN TRANSPORT INC 487665206334T/TN
Jun 20, 2023SCII · Walk-around3OOSCLINCH MOUNTAIN TRANSPORT INC 487665U766921/TN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WAYLON A JEFFERS1130003Sep 17, 2025Sep 17, 20251TN
CLINCH MOUNTAIN TRANSPORT INC487665Jun 20, 2023Dec 14, 20235TN
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.
206334TTNWAYLON A JEFFERSSep 17, 2025Sep 17, 20251
206334TTNCLINCH MOUNTAIN TRANSPORT INCOct 18, 2023Dec 14, 20233
206334TGACLINCH MOUNTAIN TRANSPORT INCDec 7, 2023Dec 7, 20231
U766921TNCLINCH MOUNTAIN TRANSPORT INCJun 20, 2023Jun 20, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 25, 2026