VIN 1NPBL49X4PD856498 — 2023 Peterbilt (PTRB) 579
Operated by Williams Tank Lines Llc · USDOT 229047
Vehicle identity
| VIN | 1NPBL49X4PD856498 |
| Model year | 2023 |
| Make | Peterbilt (PTRB) |
| Model | 579 |
| Vehicle type | STRAIGHT TRUCK |
| License plate | CA 28058T3 (California) |
| Inspection window | 2024-11-18 to 2026-05-12 |
Operating carrier of this vehicle
Williams Tank Lines Llc Active
- USDOT
- 229047
- MC
- 197435
- Status
- Active
- Type
- Carrier & Broker
- Based in
- Stockton, CA
- Power units
- 336
- Drivers
- 347
- Inspections (24 mo)
- 716
- Crashes (24 mo)
- 16
- Vehicle OOS rate
- 6.9%
What this means
1NPBL49X4PD856498 is a 2023 Peterbilt 579 operated by Williams Tank Lines Llc (USDOT 229047). License plate on its inspection records: CA 28058T3. 10 roadside inspections on FMCSA record. 2 out-of-service results on record.
What this VIN is
2023 Peterbilt 579 is the vehicle NHTSA’s VIN registry returns for 1NPBL49X4PD856498. It is a truck built by PETERBILT MOTORS COMPANY at the DENTON, TEXAS plant. Powertrain: ISX 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 10 FMCSA roadside inspections between 2024-11-18 and 2026-05-12. Its records show 2 out-of-service violations across 10 inspections. Out-of-service breakdown: 2 vehicle. Its most recent inspection (2026-05-12) was in California, a Level V — vehicle-only inspection without the driver present. Of 9 recorded violations, the most come from Vehicle Maintenance (9). Vehicle Maintenance covers brakes, lights, tires, load securement and other mechanical condition items.
Operator history
Operated by Williams Tank Lines Llc (USDOT 229047) from 2024-11-18 to 2026-05-12 — 10 inspections, 2 out-of-service.
Full spec sheet (NHTSA vPIC decode)
| Make | PETERBILT |
| Model | 579 |
| Model Year | 2023 |
| Vehicle Type | INCOMPLETE VEHICLE NHTSA’s top-level vehicle category derived from the VIN. |
| Body Class | Truck 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 | PETERBILT MOTORS COMPANY The legal manufacturer of record in NHTSA’s database. |
| Plant City | DENTON Where the chassis was assembled — useful for verifying the VIN against the build record. |
| Plant State | TEXAS |
| Plant Country | UNITED STATES (USA) |
| Engine Model | ISX 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 | 6x4 Axle drive configuration (e.g. 6x4), which affects traction and fuel economy. |
FMCSA BASIC safety category breakdown
| BASIC Category | Violations | Status |
|---|---|---|
| Vehicle Maintenance | 9 | ⚠ High |
| Unsafe Driving | 0 | ✓ Clean |
| Driver Fitness | 0 | ✓ Clean |
| Fatigued Driving (HOS) | 0 | ✓ Clean |
| Controlled Substances | 0 | ✓ Clean |
| Hazmat | 0 | ✓ Clean |
Operator & inspection history
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- 1NKZL48X8MJ471187 Kenworth (13 insp · 2 OOS)
- 3ALHHLDR3RDUW0557 Freightliner (9 insp · 2 OOS)
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Related
Frequently Asked Questions
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