2023 KENWORTH M T8 Series
VIN 3WKDP4TX9PF146729
Operating carrier of this vehicle
Sevenson Environmental Services Inc Active
- USDOT
- 336233
- MC
- —
- Status
- Active
- Type
- Motor Carrier
- Based in
- Niagara Falls, NY
- Power units
- 54
- Drivers
- 40
- Inspections (24 mo)
- 10
- Crashes (24 mo)
- 1
- Vehicle OOS rate
- 20%
What this means
3WKDP4TX9PF146729 decodes to a 2023 KENWORTH M T8 Series. 4 roadside inspections on FMCSA record. 2 out-of-service results — investigate the specific causes.
What this VIN is
2023 KENWORTH M T8 Series is the vehicle NHTSA’s VIN registry returns for 3WKDP4TX9PF146729. It is a truck-tractor built by KENWORTH TRUCK COMPANY at the MEXICALI, BAJA CALIFORNIA plant. Powertrain: ISX / X15 engine, 15L displacement, running on diesel. Its gross vehicle weight rating (Class 8: 33,001 lb and above (14,969 kg and above)) places it in Class 8 heavy-duty (33,001 lb GVWR and above) — the line-haul tractor / heavy straight-truck tier.
Roadside inspection & out-of-service record
This specific vehicle appears in 4 FMCSA roadside inspections between 2025-04-13 and 2026-04-25. It was placed out of service 2 times. That is roughly 50% of its inspections producing an out-of-service order — above the national vehicle out-of-service average of about 20%. Out-of-service breakdown: 2 vehicle. Of 3 recorded violations, the most come from Vehicle Maintenance (2), followed by Unsafe Driving (1). These are FMCSA BASIC safety categories — the same buckets that drive a carrier’s CSA score.
Operator history
This vehicle was operated by SEVENSON ENVIRONMENTAL SERVICES INC (DOT 336233) during our inspection window. Open the carrier profile for that operator’s full safety record, authority status, and fleet size.
How to use this report
If you’re buying this truck: ask the seller for repair records tied to the 2 out-of-service events above, and confirm the items were corrected, not just cleared. If you’re investigating an incident: the operator history above links to the carrier’s full FMCSA profile, where you can review authority, insurance, and crash records. This page aggregates public FMCSA roadside data and NHTSA vPIC decode for this VIN; it is informational and not a substitute for a title search or a hands-on inspection.
Full spec sheet (NHTSA vPIC decode)
| Make | KENWORTH |
| Model | T8 Series |
| Model Year | 2023 |
| Vehicle Type | TRUCK NHTSA’s top-level vehicle category derived from the VIN. |
| Body Class | Truck-Tractor The body style NHTSA assigns from the VIN — e.g. truck-tractor, straight truck, or cutaway. |
| G V W R | Class 8: 33,001 lb and above (14,969 kg and above) Class 8 heavy-duty (33,001 lb GVWR and above) — the line-haul tractor / heavy straight-truck tier |
| Manufacturer | KENWORTH TRUCK COMPANY The legal manufacturer of record in NHTSA’s database. |
| Plant City | MEXICALI Where the chassis was assembled — useful for verifying the VIN against the build record. |
| Plant State | BAJA CALIFORNIA |
| Plant Country | MEXICO |
| Engine Model | ISX / X15 The engine family installed at the factory — a major driver of resale value and parts availability. |
| Engine Configuration | In-Line Cylinder layout (e.g. inline-6), the dominant configuration in Class 8 diesels. |
| Engine Cylinders | 6 |
| Displacement L | 15 Engine displacement in liters — bigger generally means more torque for heavy loads. |
| Fuel Type Primary | Diesel Primary fuel — diesel dominates heavy trucking; CNG/electric change maintenance and range. |
| Brake System Type | Air Air vs hydraulic brakes — air brakes are standard on heavy trucks and require an endorsement. |
| Drive Type | Other Axle drive configuration (e.g. 6x4), which affects traction and fuel economy. |
FMCSA BASIC safety category breakdown
| BASIC Category | Violations | Status |
|---|---|---|
| Vehicle Maintenance | 2 | ! Moderate |
| Unsafe Driving | 1 | — Minor |
| Driver Fitness | 0 | ✓ Clean |
| Fatigued Driving (HOS) | 0 | ✓ Clean |
| Controlled Substances | 0 | ✓ Clean |
| Hazmat | 0 | ✓ Clean |
Operator & inspection history
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Frequently Asked Questions
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