Equipment unit · VIN-decoded · NHTSA vPIC

2011 West-Mark Certified Stainless Services, Inc dba West-Mark

1W9TE4026BA488068 · Trailer · TRAILER
Carriers run under2
34 mo
Inspections11
all-time
OOS inspections3
of 11
First seenAug 2, 2023
CA
Last seenJun 17, 2026
CA
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
1W9TE4026BA488068
Make
West-Mark
Model
Certified Stainless Services, Inc dba West-Mark
Model year
2011
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 16, 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
1W9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
TE402

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
1981 or 2011

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

North American serial sequence
488068

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
WEST-MARK

Prefix basis · 39 decoded VINs at 100.0% prefix purity.

Model
Certified Stainless Services, Inc dba West-Mark

Prefix basis · 39 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
2011

Observed directly for this VIN via NHTSA vPIC.

Observed make
WEST-MARK

Observed directly for this VIN via NHTSA vPIC.

Observed model
Certified Stainless Services, Inc dba West-Mark

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 · Aug 2, 2023 – Jun 17, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 17, 2026CAII · Walk-around1RICHARD IEST DAIRY INC 28045564VW3131/CA
May 28, 2026CAI · Full0PERFORMANCE TRANSPORTATION LLC 2701504VW3131/CA
Mar 5, 2026CAII · Walk-around0RICHARD IEST DAIRY INC 28045564VW3131/CA
Dec 22, 2025CAII · Walk-around1OOSRICHARD IEST DAIRY INC 28045564VW3131/CA
Oct 28, 2025CAI · Full0RICHARD IEST DAIRY INC 28045564VW3131/CA
Jun 29, 2025CAIII · Driver-only0RICHARD IEST DAIRY INC 28045564VW3131/CA
Oct 4, 2024CAI · Full0RICHARD IEST DAIRY INC 28045564VW3131/CA
Apr 24, 2024CAI · Full4OOSRICHARD IEST DAIRY INC 28045564LL3961/CA
Apr 23, 2024CAII · Walk-around1RICHARD IEST DAIRY INC 28045564LL3961/CA
Dec 12, 2023CAI · Full3OOSRICHARD IEST DAIRY INC 28045564LL3961/CA
Aug 2, 2023CAIII · Driver-only0RICHARD IEST DAIRY INC 28045564LL3961/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
RICHARD IEST DAIRY INC2804556Aug 2, 2023Jun 17, 202610CA
PERFORMANCE TRANSPORTATION LLC270150May 28, 2026May 28, 20261VA
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.
4VW3131CA2RICHARD IEST DAIRY INCOct 4, 2024Jun 17, 20266
4VW3131CAPERFORMANCE TRANSPORTATION LLCMay 28, 2026May 28, 20261
4LL3961CARICHARD IEST DAIRY INCAug 2, 2023Apr 24, 20244
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026