Fleet typeIdentity
Owner-operator
5 power units. Brokers price each fleet type apart.
Carrier profile · USDOT 890170 · MX-387633
SERGIO VALENZUELA SIERRA
DBA TRANSPORTES ISA
5 power unitsavg 15.4 yrRegional · 3 statesJUAREZ, CI
CARRIER ACTIVEMX-387633 ACTIVERATED CONDITIONAL
Observed fleet · trailing 24 mo daily
5Power units
7 observed · MCS-150
31Trailers seen
Decoded · vPIC
15.4Avg age (yr)
1999–2025 · vPIC
Click to see how we scored it
Load decision · FMCSA snapshot · 2026-06-13
Review before loading
Operating, but with flags a broker should weigh before tendering freight.
Active operating authorityEstablished 26 yearsNo insurance on file
Watch · 2
Operating authority2626 yr active
since 2000Insurance (BIPD)Not on file
FMCSA L&IVehicle OOS · 24mo30.430.4 %
▲ 22.26% nat'lCrashes · fatal00
clean 24 moVektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots
Fleet age vs peersOlder
15.4 yr
Model years 1999–2025 · peer benchmark computing.
Identity stabilityStable
26 yr unchanged
Same registration since 2000 — no chameleon / reincarnation signal.
AI readFull read
Is SERGIO VALENZUELA SIERRA safe to work with?
Is SERGIO VALENZUELA SIERRA safe to load? SERGIO VALENZUELA SIERRA (USDOT 890170, MX-387633) is an active owner-operator motor carrier based in JUAREZ, CI, operating 5 power units and 3 drivers. Operating authority has been active 26 years (past the 24-month broker-confidence threshold). Across 172 roadside inspections, its vehicle out-of-service rate is 30.4% (above the 22.26% national average), with 0 reportable crashes in the last 24 months. FMCSA rates it Conditional. Vektor rates it review before loading (75/100), with the leading concern: no insurance on file. Source: FMCSA SAFER/MCMIS, last updated 2026-06-13.
FMCSA fields + Vektor analysis · updated 2026-06-13
SVSERGIO VALENZUELA SIERRA 75
01
Safety
172 inspections · 24 mo · vs national benchmarks
Out-of-service rate· trailing 24 months vs national benchmark
Vehicle OOS 30.4% (24-mo)102 veh insp · 24-mo · nat'l 22.26%
050%nat'l 22.26%
Driver OOS 1.9% (24-mo)107 drv insp · 24-mo · nat'l 6.67%
030%nat'l 6.67%
OOS trajectory· trailing 6-mo vehicle-OOS rate vs national
27.0% now▼ Improving
Inspection coverage· expected vs observed · the fraud signal
Inspection coverage
How heavily FMCSA inspects this fleet for its size — it tells you how much to trust the safety signals above. Thin coverage on a young authority is a fraud signal nobody else surfaces.
Under-inspected
Expected
Well-monitored
Heavily inspected
≈10.7 / unit·yr
thin signalabundant signal
Among the more heavily-inspected carriers for its size — abundant roadside signal. Coverage isn't the question here; the out-of-service and crash record is.
- Registered power units
- 5
- Inspections · 24 mo
- 107
- Annualized
- ≈54 / yr
- Coverage
- ≈10.7 inspections / unit · yr
Violation themes· decoded · grouped by BASIC
What this carrier actually gets cited for — FMCSA violation codes decoded into plain English, ranked by frequency.
- 393.9 Inoperative required lampsVehicle Maintenance140 · 22 OOS
- 396.3 Inspection / repair / maintenance not performedVehicle Maintenance79 · 25 OOS
- 393.45 Brake tubing / hose defectsVehicle Maintenance70 · 6 OOS
- 396.5 Oil and/or grease leakVehicle Maintenance58 · 1 OOS
- 393.78 Windshield wipersVehicle Maintenance55
- 393.55 Antilock brake system (ABS)Vehicle Maintenance44
- 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance39 · 17 OOS
- 393.11 Required lamps/reflectors missingVehicle Maintenance38 · 1 OOS
- 393.47 Brake actuators / linings / componentsVehicle Maintenance35 · 2 OOS
- 393.209 Parts & accessories (vehicle condition)Vehicle Maintenance33
02
Authority & insurance
Can they legally + adequately haul your load?
Operating authority· 49 CFR · per type
Operating authority
- Common
- Active
- Contract
- None
- Broker
- None
Insurance & bonds
BIPD / liability (required)Not on file
CargoNone
Surety bond (BMC-84)None
Insurance continuity· insurer · policy · lapses
No insurance filing history on record.
03
Equipment & fleet
VIN-decoded · NHTSA vPIC
Capacity· power units = haulable capacity; trailers are towed
- Registered power units (MCS-150)
- 5
- Observed power (24 mo)
- 7
- Trailers (towed)
- 31
Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.
Fleet age· model years · decoded VINs
Average age
2025
Newest model yr
1999
Oldest model yr
VINs decoded
04
Operations & lanes
Revealed by inspection density across 3 states · 24 mo
Operating footprint· revealed by roadside-inspection geography
Operating radiusLocal
revealedStates observed22
US statesInspections · 24 mo7171
TX busiestInspection density by state· each tile = a state · shade = inspections, last 24 mo
Home base
JUAREZ, CI
Top corridor
TX ⇄ CI
Density
fewermore
05
Network & fraud
Affiliated entities & reincarnation signals · for review, not a verdict
Last 12 months: 15 trucks also ran under 3 other carriers
VINs inspected under this carrier were recently inspected under other USDOTs too — the active double-broker / shared-equipment signal: USDOT 917291USDOT 3104119USDOT 974845Some overlap is legitimate (leased or sold equipment); review alongside the other signals.
Show all-time history (29 trucks · 9 carriers)
Across all inspections on record: USDOT 3099709USDOT 3104119USDOT 3866620USDOT 558899USDOT 974845USDOT 917291USDOT 1719074USDOT 1718446
Shares a company officer with other carriers
sergio valenzuela sierra — 2 carriers: USDOT 4445463
Capacity consistency· registered vs roadside-observed power units
Registered (MCS-150)55
Observed (24 mo)77
Shared w/ other carriers3131
Registered and roadside-observed capacity are broadly consistent.
06
Identity & contact
FMCSA census + L&I dossier
Location
- Physical address
- CHECOSLOVAQUIA 341, JUAREZ, CI, 32260
- Operation
- Interstate
Contact
- Phone
- (915) 356-8992
- Cell
- 526566687768
- Fax
- (915) 303-5133
- Web domain
- trans-isa.com
Registration
- Officers
- Sergio Valenzuela Sierra · Sergio Ivan Valenzuela Perez
- USDOT / docket
- 890170 · MX-387633
- First registered
- 06/27/2000
- Last MCS-150
- 08/26/2025 · 149,300 mi (2024)
- FMCSA safety rating
- Conditional · 04/30/2007
- D-U-N-S
- —
Fleet (self-reported · MCS-150)
—CDL drivers
07
Federal activity
Daily-captured FMCSA licensing & insurance changes — monitored by Vektor
Federal record activity· monitored daily by Vektor
No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.
08
Reviews
Verified broker, shipper & driver reviews — moderated
Performance ratings only — never the Vektor risk score
No verified reviews yet
Be the first broker or shipper to rate SERGIO VALENZUELA SIERRA. Reviews cover performance only — on-time delivery, payment speed, communication — and never affect the Vektor risk score.
Leave a review09
Frequently asked
What is SERGIO VALENZUELA SIERRA's USDOT number?
SERGIO VALENZUELA SIERRA's USDOT number is 890170, and its motor carrier number is MX-387633.
Is SERGIO VALENZUELA SIERRA authorized to operate?
As of 2026-06-13, SERGIO VALENZUELA SIERRA is active in the FMCSA register with common, contract, broker operating authority on file.
What is SERGIO VALENZUELA SIERRA's safety record?
SERGIO VALENZUELA SIERRA has a 30.4% vehicle out-of-service rate (national average 22.26%) across 172 roadside inspections, with 0 reportable crashes in the last 24 months, and an FMCSA "Conditional" safety rating. Vektor's computed risk score is 75/100 (tier: review).
How big is SERGIO VALENZUELA SIERRA's fleet?
SERGIO VALENZUELA SIERRA operates 5 power units and 3 drivers per its most recent MCS-150 filing.
Where is SERGIO VALENZUELA SIERRA based?
SERGIO VALENZUELA SIERRA is based in JUAREZ, CI, with roadside inspections recorded across 3 states.