Equipment unit · VIN-decoded · NHTSA vPIC

2023 Mack Anthem

1M1AN4GY5PM037069 · Truck-Tractor · TRUCK
Carriers run under3
37 mo
Inspections12
all-time
OOS inspections2
of 12
First seenJul 3, 2023
NE
Last seenAug 6, 2026
WY
Inspected under 3 different carriers in 37 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
1M1AN4GY5PM037069
Make
Mack
Model
Anthem
Model year
2023
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 17, 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
1M1

Deterministic · VIN positions 1–3.

Vehicle descriptor section
AN4GY

Deterministic · VIN positions 4–8.

Check digit
5 · valid

Deterministic · position 9; calculated value 5.

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
037069

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
MACK

Prefix basis · 7,931 decoded VINs at 100.0% prefix purity.

Model
Anthem

Prefix basis · 7,931 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
MACK

Observed directly for this VIN via NHTSA vPIC.

Observed model
Anthem

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck-Tractor

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRUCK

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

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jul 3, 2023 – Aug 6, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 6, 2026WYIII · Driver-only1SK EXPRESS LINES INC 3692230PXD5535/OH
Mar 5, 2026CAIII · Driver-only2OOSHHJ EXPRESS INC 3283906PXD5535/OH
Jan 19, 2026UTIII · Driver-only1HHJ EXPRESS INC 3283906PXD5535/OH
Sep 8, 2025CAIII · Driver-only0SK EXPRESS LINES INC 3692230TEMP/OH
Aug 12, 2025NVII · Walk-around3SK EXPRESS LINES INC 3692230YP89529/CA
Jul 13, 2025CAIII · Driver-only0SK EXPRESS LINES INC 3692230YP89529/CA
Mar 17, 2025NEII · Walk-around1OOSSK EXPRESS LINES INC 3692230YP89529/CA
Mar 3, 2025TXII · Walk-around2SK EXPRESS LINES INC 3692230YP89529/CA
Aug 4, 2024OHII · Walk-around6SK EXPRESS LINES INC 3692230YP70478/CA
May 14, 2024NVIII · Driver-only0SK EXPRESS LINES INC 3692230YP89529/CA
Oct 31, 2023NVIII · Driver-only0SK EXPRESS LINES INC 3692230YP89529/CA
Jul 3, 2023NEIII · Driver-only0SK XPRESS INC 3030920YP70478/CA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SK EXPRESS LINES INC3692230Oct 31, 2023Aug 6, 20269OH
HHJ EXPRESS INC3283906Jan 19, 2026Mar 5, 20262CA
SK XPRESS INC3030920Jul 3, 2023Jul 3, 20231CA
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.
PXD5535OH1SK EXPRESS LINES INCAug 6, 2026Aug 6, 20261
PXD5535OHHHJ EXPRESS INCJan 19, 2026Mar 5, 20262
TEMPOHSK EXPRESS LINES INCSep 8, 2025Sep 8, 20251
YP89529CASK EXPRESS LINES INCOct 31, 2023Aug 12, 20256
YP70478CASK EXPRESS LINES INCAug 4, 2024Aug 4, 20241
YP70478CASK XPRESS INCJul 3, 2023Jul 3, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 17, 2026