Equipment unit · VIN-decoded · NHTSA vPIC

2017 Christen Brothers, Inc Christen Brothers, INC.

4C9C5GS21HS072016 · Trailer · TRAILER
Carriers run under4
36 mo
Inspections37
all-time
OOS inspections14
of 37
First seenJul 12, 2023
CA
Last seenJul 9, 2026
CA
Inspected under 4 different carriers in 36 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
4C9C5GS21HS072016
Make
Christen Brothers, Inc
Model
Christen Brothers, INC.
Model year
2017
Body class
Trailer
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
4C9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
C5GS2

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1987 or 2017

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

North American serial sequence
072016

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

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
2017

Observed directly for this VIN via NHTSA vPIC.

Observed make
CHRISTEN BROTHERS, INC

Observed directly for this VIN via NHTSA vPIC.

Observed model
Christen Brothers, INC.

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

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jul 12, 2023 – Jul 9, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 9, 2026CAI · Full6OOSED CARRIERS INC 38913164VH9558/CA
Jun 24, 2026USI · Full2ED CARRIERS INC 38913164VH9558/CA
Jun 16, 2026CAII · Walk-around1ED CARRIERS INC 38913164VH9558/CA
Jun 9, 2026CAI · Full7OOSED CARRIERS INC 38913164VH9558/CA
Mar 25, 2026CAI · Full2ENGELL TRUCKING LLC 43359614VH9558/CA
Mar 18, 2026CAI · Full6ENGELL TRUCKING LLC 43359614VH9558/CA
Mar 12, 2026CAII · Walk-around4ENGELL TRUCKING LLC 43359614VH9558/CA
Feb 4, 2026CAI · Full1ENGELL TRUCKING LLC 43359614VH9558/CA
Sep 16, 2025CAI · Full2SIERRA FREIGHT LLC 14002804VH9558/CA
Sep 11, 2025USI · Full5SIERRA FREIGHT LLC 14002804VH9558/CA
Jul 17, 2025USI · Full6OOSSIERRA FREIGHT LLC 14002804VH9558/CA
Jul 9, 2025CAII · Walk-around2SIERRA FREIGHT LLC 14002804VH9558/CA
Jul 2, 2025CAI · Full0SIERRA FREIGHT LLC 14002804VH9558/CA
Jun 27, 2025USI · Full5OOSSIERRA FREIGHT LLC 14002804VH9558/CA
Apr 10, 2025USII · Walk-around0SIERRA FREIGHT LLC 14002804VH9558/CA
Mar 27, 2025USI · Full1SIERRA FREIGHT LLC 14002804VH9558/CA
Mar 4, 2025USI · Full4OOSSIERRA FREIGHT LLC 14002804VH9558/CA
Feb 22, 2025USI · Full4OOSSIERRA FREIGHT LLC 14002804VH9558/CA
Dec 27, 2024USII · Walk-around2OOSSIERRA FREIGHT LLC 14002804VH9558/CA
Nov 12, 2024CAI · Full2SIERRA FREIGHT LLC 14002804VH9558/CA
Oct 22, 2024USI · Full7OOSSIERRA FREIGHT LLC 14002804VH9558/CA
Jul 25, 2024CAI · Full0SIERRA FREIGHT LLC 14002804VH9558/CA
Jul 22, 2024CAI · Full1SIERRA FREIGHT LLC 14002804VH9558/CA
Jul 11, 2024CAIII · Driver-only1SIERRA FREIGHT LLC 14002804VH9558/CA
May 27, 2024USI · Full0SIERRA FREIGHT LLC 14002804VH9558/CA
Apr 1, 2024USII · Walk-around2OOSSIERRA FREIGHT LLC 14002804VH9558/CA
Mar 14, 2024AZII · Walk-around8OOSSIERRA FREIGHT LLC 14002804VH9558/CA
Feb 22, 2024CAI · Full0SIERRA FREIGHT LLC 14002804VH9558/CA
Jan 19, 2024CAI · Full5OOSSIERRA FREIGHT LLC 14002804VH9558/CA
Jan 2, 2024CAII · Walk-around1OOSSIERRA FREIGHT LLC 14002804VH9558/CA
Sep 1, 2023AZII · Walk-around4OOSWHITE STAR ENTERPRISES LLC 30017464VH9558/CA
Aug 25, 2023CAI · Full0WHITE STAR ENTERPRISES LLC 30017464RA6522/CA
Aug 25, 2023AZIII · Driver-only2WHITE STAR ENTERPRISES LLC 30017464VH9558/CA
Aug 11, 2023CAI · Full1OOSWHITE STAR ENTERPRISES LLC 30017464RA6522/CA
Jul 28, 2023CAIII · Driver-only1WHITE STAR ENTERPRISES LLC 30017464RA6522/CA
Jul 25, 2023CAI · Full2WHITE STAR ENTERPRISES LLC 30017464RA6522/CA
Jul 12, 2023CAI · Full1WHITE STAR ENTERPRISES LLC 30017464RA6522/CA
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ED CARRIERS INC3891316Jun 9, 2026Jul 9, 20264CA
ENGELL TRUCKING LLC4335961Feb 4, 2026Mar 25, 20264CA
SIERRA FREIGHT LLC1400280Jan 2, 2024Sep 16, 202522CA
WHITE STAR ENTERPRISES LLC3001746Jul 12, 2023Sep 1, 20237CA
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.
4VH9558CA2ED CARRIERS INCJun 9, 2026Jul 9, 20264
4VH9558CAENGELL TRUCKING LLCFeb 4, 2026Mar 25, 20264
4VH9558CASIERRA FREIGHT LLCJan 2, 2024Sep 16, 202522
4VH9558CAWHITE STAR ENTERPRISES LLCAug 25, 2023Sep 1, 20232
4RA6522CAWHITE STAR ENTERPRISES LLCJul 12, 2023Aug 25, 20235
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 10, 2026