Equipment unit · VIN-decoded · NHTSA vPIC

2001 Fontaine Trailer

1R1F045291K510377 · TRAILER
Carriers run under2
23 mo
Inspections9
all-time
OOS inspections3
of 9
First seenNov 27, 2023
CA
Last seenOct 31, 2025
CA
Inspected under 2 different carriers in 23 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
1R1F045291K510377
Make
Fontaine Trailer
Model
Not decoded
Model year
2001
Body class
Not decoded
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 10, 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
1R1

Deterministic · VIN positions 1–3.

Vehicle descriptor section
F0452

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
2001 or 2031

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

North American serial sequence
510377

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
FONTAINE TRAILER

Prefix basis · 85 decoded VINs at 100.0% prefix purity.

Model
Fontaine Trailer

Prefix basis · 85 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
2001

Observed directly for this VIN via NHTSA vPIC.

Observed make
FONTAINE TRAILER

Observed directly for this VIN via NHTSA vPIC.

Observed model
Not established

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Not established

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 · Nov 27, 2023 – Oct 31, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 31, 2025CAI · Full0STATE PIPE & SUPPLY INC 4258284PJ4302/CA
Oct 15, 2025CAI · Full2STATE PIPE & SUPPLY INC 4258284PJ4302/CA
Jul 9, 2025CAII · Walk-around1OOSD & L TRANSPORT LLC 4250284PJ4302/CA
Jul 9, 2025CAII · Walk-around1OOSD & L TRANSPORT LLC 4250284PJ4302/CA
Dec 9, 2024CAII · Walk-around0STATE PIPE & SUPPLY INC 4258284PJ4302/CA
Dec 4, 2024CAI · Full0STATE PIPE & SUPPLY INC 4258284PJ4302/CA
Feb 7, 2024CAII · Walk-around2STATE PIPE & SUPPLY INC 4258284PJ4302/CA
Dec 14, 2023CAII · Walk-around1OOSSTATE PIPE & SUPPLY INC 4258284PJ4302/CA
Nov 27, 2023CAI · Full0STATE PIPE & SUPPLY INC 4258284PJ4302/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
STATE PIPE & SUPPLY INC425828Nov 27, 2023Oct 31, 20257CA
D & L TRANSPORT LLC425028Jul 9, 2025Jul 9, 20252CT
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.
4PJ4302CASTATE PIPE & SUPPLY INCNov 27, 2023Oct 31, 20257
4PJ4302CA2D & L TRANSPORT LLCJul 9, 2025Jul 9, 20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 10, 2026