TruckCodex

2011 KENWORTH T6 Series

Truck-Tractor • TRUCK • 2 inspections

Vehicle specs from NHTSA vPIC. Inspection history from FMCSA roadside records (operator USDOT on the ticket, not title). Something wrong? Report a data issue.

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View full inspection history (2 inspections across 2 carriers)

Cross-carrier inspection timeline — each row is an FMCSA roadside inspection under that carrier's USDOT on that date (not title/ownership).

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Inspections
2
Carriers
2
Open recalls
0
Complaints
0

Vehicle identity

VIN
1XKAD49X1BJ279847
Model Year
2011
Make
KENWORTH
Model
T6 Series
Manufacturer
KENWORTH TRUCK COMPANY
WMI
1XK

Engine & Drivetrain

Engine Model
ISX
Engine Manufacturer
Cummins
Cylinders
6
Displacement
15 L
Horsepower
400
Configuration
In-Line
Fuel Type
Diesel
Drive Type
6x4

Weight & Dimensions

GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Body Class
Truck-Tractor
Vehicle Type
TRUCK

Manufacturing

Plant City
CHILLICOTHE
Plant State
OHIO
Plant Country
UNITED STATES (USA)
Decode Source
nhtsa-vpic-batch
Decoded
Apr 30, 2026

Active Safety
Brake System
Air

Carriers on this VIN

— — — — — —

Technical details (2)
Note
GVWR: 47,001-57,000 lbs.
Body Cab Type
MDHD: Conventional

Carriers on FMCSA inspections

Distinct USDOT numbers that appear on roadside inspection tickets for this VIN. Dates are first/last inspection under each carrier — not registration or title.

Carrier USDOT First seen Last seen Inspections
JOSE ANGEL ALFARO 4169958 Feb 22, 2024 Feb 22, 2024 1
KNOWLES TRUCKING LLC 1246064 Mar 30, 2026 Mar 30, 2026 1

Plates observed

From roadside inspections and reportable crash filings — not a DMV title history.

TX · TMP53DLN TX · 1M64519 R158708

Sister VINs

VINs sharing the same WMI + VDS prefix + model year as this vehicle — likely from the same production run.

1XKAD49X0BJ269004 1XKAD49X0BJ272551 1XKAD49X0BJ274333 1XKAD49X0BJ274901 1XKAD49X0BJ275448 1XKAD49X0BJ276034 1XKAD49X0BJ276146 1XKAD49X0BJ276261

Roadside inspections (2)

Every DOT roadside inspection that referenced this VIN.

Inspection Date Carrier Violations
87468376 Mar 30, 2026 KNOWLES TRUCKING LLC 6
80945825 Feb 22, 2024 JOSE ANGEL ALFARO 1

Inspection history across all operators

Every roadside inspection FMCSA has on record for this VIN. Includes inspections under different carriers if the truck has changed hands.

Date Carrier Violations
Mar 30, 2026 KNOWLES TRUCKING LLC 6
Feb 22, 2024 JOSE ANGEL ALFARO ← carrier change 1

Operator changes (inspection records)

When consecutive FMCSA inspections list different operating USDOT numbers for this VIN. Common after fleet transfers; can also reflect data-entry errors on rare tickets.

How to read this: FMCSA inspection records show which carrier operated the vehicle on a given date, not the legal owner. A single change may reflect a sale, sublease, or fleet reassignment.

Approximate date From carrier To carrier
Between Feb 22, 2024 and Mar 30, 2026 JOSE ANGEL ALFARO KNOWLES TRUCKING LLC

We say "Sale/auction not necessarily implied" — we see a change in operator USDOT in inspection records, which may indicate a sale, lease, or operational reassignment.

Frequently asked questions about this VIN

What does this VIN's inspection history tell me? ▾
This VIN has been pulled into 2 roadside inspections on record with FMCSA. Each inspection shows the carrier operating the vehicle that day, the inspection level (1 through 6), the violations cited, and whether the vehicle or driver was placed out-of-service. The cross-carrier timeline tells you whether the vehicle has stayed with one operator or moved between fleets.
Has this truck been operated by multiple carriers? ▾
FMCSA inspection records list 2 different operating USDOT numbers for this VIN. That usually means the truck was inspected under more than one fleet (sale, lease, dealer transport, or reassignment). It can also happen if an inspector mistyped a digit on a ticket — open individual inspection rows to verify dates and carriers. These rows are inspection operators, not title holders.
Are there any out-of-service events on this VIN? ▾
Yes. FMCSA records show 1 inspection where this VIN was placed out-of-service overall. An out-of-service order means the vehicle, driver, or both were ordered off the road until the cited defect was corrected. The timeline above marks each inspection's OOS state.
How do I see the full violation list for an inspection? ▾
Click the inspection date in the timeline above to open that inspection's detail page. The detail page lists every violation cited (FMCSR section, severity weight, OOS flag), the inspecting station, and the carrier's other inspections at that station and around that date.
What if this VIN has fewer inspections than I'd expect for its age? ▾
Roadside inspection volume varies a lot by vehicle use. A vehicle in high-mileage long-haul service is inspected more often than a vehicle in local or seasonal use. Inspections also depend on the routes, the carrier's safety profile (which can flag the carrier for more frequent inspection), and where the vehicle crosses scales. A low inspection count is not by itself a sign of anything wrong with the vehicle.
Can I see this VIN's recall remediation status? ▾
NHTSA does not publish per-VIN remediation status in its public datasets, so we cannot show whether this exact VIN has had the recall work performed. To check completion status, use NHTSA's official recall lookup at nhtsa.gov/recalls or contact the manufacturer with the VIN — we link to the manufacturer page from the recall campaign rows above when available.

Related

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