Equipment unit · VIN-decoded · NHTSA vPIC

1999 Mack RD

1M2P267Y2XM043437 · Truck-Tractor · INCOMPLETE VEHICLE
Carriers run under2
34 mo
Inspections5
all-time
OOS inspections2
of 5
First seenAug 2, 2023
WI
Last seenJun 8, 2026
MN
Inspected under 2 different carriers in 34 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
1M2P267Y2XM043437
Make
Mack
Model
RD
Model year
1999
Body class
Truck-Tractor
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 28, 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
1M2

Deterministic · VIN positions 1–3.

Vehicle descriptor section
P267Y

Deterministic · VIN positions 4–8.

Check digit
2 · valid

Deterministic · position 9; calculated value 2.

Model year candidates
1999 or 2029

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

North American serial sequence
043437

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 · 61 decoded VINs at 100.0% prefix purity.

Model
RD

Prefix basis · 61 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
1999

Observed directly for this VIN via NHTSA vPIC.

Observed make
MACK

Observed directly for this VIN via NHTSA vPIC.

Observed model
RD

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck-Tractor

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
INCOMPLETE VEHICLE

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 · Aug 2, 2023 – Jun 8, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 8, 2026MNIII · Driver-only1ARROWHEAD CONCRETE WORKS INC 2103045565PZA/MN
Aug 14, 2025MNI · Full7OOSARROWHEAD CONCRETE WORKS INC 210304YCH6262/MN
Jul 18, 2025MNIII · Driver-only2BRENNY DAHL BLOCK CO INC 2425133036PZA/MN
Nov 7, 2024MNIII · Driver-only1BRENNY DAHL BLOCK CO INC 2425133036PZA/MN
Aug 2, 2023WII · Full8OOSBRENNY DAHL BLOCK CO INC 242513PRZ6533/MN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ARROWHEAD CONCRETE WORKS INC210304Aug 14, 2025Jun 8, 20262MN
BRENNY DAHL BLOCK CO INC242513Aug 2, 2023Jul 18, 20253MN
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.
5565PZAMN1ARROWHEAD CONCRETE WORKS INCJun 8, 2026Jun 8, 20261
YCH6262MNARROWHEAD CONCRETE WORKS INCAug 14, 2025Aug 14, 20251
3036PZAMNBRENNY DAHL BLOCK CO INCNov 7, 2024Jul 18, 20252
PRZ6533MNBRENNY DAHL BLOCK CO INCAug 2, 2023Aug 2, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026