VIN 1GT4UPEY8SF358279 — 2025 GMC Sierra HD
Recorded with Mainline Transport Llc · USDOT 4294974
Vehicle identity
| VIN | 1GT4UPEY8SF358279 |
| Model year | 2025 |
| Make | GMC |
| Model | Sierra HD |
| Vehicle type | STRAIGHT TRUCK |
| License plate | TX SPY5782 (Texas) |
| Inspection window | 2025-12-11 to 2026-07-22 |
Recorded vehicle, plate and carrier history
These are dated observations in the records available to us. They do not establish ownership, a sale, a transfer date, or continuous use between observations. The latest observation may not describe today’s vehicle or carrier.
| Observed dates | VIN | Plate | Reported carrier |
|---|---|---|---|
| 2026-07-22 | 1GT4UPEY8SF358279 | TX SPY5782 | MAINLINE TRANSPORT LLC · USDOT 4294974 |
Evidence: FMCSA inspection observations and retained snapshots of our vehicle records. Coverage is incomplete; an unreported change cannot be dated from these records.
Most recently recorded carrier for this vehicle
Mainline Transport Llc Inactive
- USDOT
- 4294974
- MC
- 1671810
- Status
- Inactive
- Type
- Motor Carrier
- Based in
- Pall Mall, TN
- Power units
- 10
- Drivers
- 10
Carrier recorded at the latest inspection in the available records (2026-07-22). This does not establish current ownership or confirm that the carrier still operates this vehicle.
View full carrier profile →Authority, insurance & bonds, safety scores, crash history, inspections and the full fleet list.What this means
1GT4UPEY8SF358279 is a 2025 GMC Sierra HD operated by Mainline Transport Llc (USDOT 4294974). License plate on its inspection records: TX SPY5782. 10 roadside inspections on FMCSA record. 1 out-of-service result on record.
What this VIN is
2025 GMC Sierra HD is the vehicle NHTSA’s VIN registry returns for 1GT4UPEY8SF358279. It is a pickup built by GENERAL MOTORS LLC at the FLINT, MICHIGAN plant. Powertrain: L5P engine, 6.6L displacement, running on diesel. Its gross vehicle weight rating (Class 3: 10,001 - 14,000 lb (4,536 - 6,350 kg)) places it in Class 3 light-heavy (10,001–14,000 lb).
Roadside inspection & out-of-service record
This specific vehicle appears in 10 FMCSA roadside inspections between 2025-12-11 and 2026-07-22. Its records show 1 out-of-service violation across 10 inspections. Out-of-service breakdown: 1 driver. Its most recent inspection (2026-07-22) was in Arkansas, a Level III — driver and paperwork only. Of 3 recorded violations, the most come from Fatigued Driving (HOS) (2), followed by Driver Fitness (1). Fatigued Driving (HOS) covers hours-of-service limits and logbook / ELD records.
Operator history
Operated by Mainline Transport Llc (USDOT 4294974) from 2025-12-11 to 2026-07-22 — 10 inspections, 1 out-of-service.
Full spec sheet (NHTSA vPIC decode)
| Make | GMC |
| Model | Sierra HD |
| Model Year | 2025 |
| Series | 2500 |
| Trim | AT4 |
| Vehicle Type | TRUCK NHTSA’s top-level vehicle category derived from the VIN. |
| Body Class | Pickup The body style NHTSA assigns from the VIN — e.g. truck-tractor, straight truck, or cutaway. |
| G V W R | Class 3: 10,001 - 14,000 lb (4,536 - 6,350 kg) Class 3 light-heavy (10,001–14,000 lb) |
| Manufacturer | GENERAL MOTORS LLC The legal manufacturer of record in NHTSA’s database. |
| Plant City | FLINT Where the chassis was assembled — useful for verifying the VIN against the build record. |
| Plant State | MICHIGAN |
| Plant Country | UNITED STATES (USA) |
| Engine Model | L5P The engine family installed at the factory — a major driver of resale value and parts availability. |
| Engine Configuration | V-Shaped Cylinder layout (e.g. inline-6), the dominant configuration in Class 8 diesels. |
| Engine Cylinders | 8 |
| Displacement L | 6.6 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 | Hydraulic Air vs hydraulic brakes — air brakes are standard on heavy trucks and require an endorsement. |
| Drive Type | 4WD/4-Wheel Drive/4x4 Axle drive configuration (e.g. 6x4), which affects traction and fuel economy. |
FMCSA BASIC safety category breakdown
| BASIC Category | Violations | Status |
|---|---|---|
| Fatigued Driving (HOS) | 2 | ! Moderate |
| Driver Fitness | 1 | — Minor |
| Vehicle Maintenance | 0 | ✓ Clean |
| Unsafe Driving | 0 | ✓ Clean |
| Controlled Substances | 0 | ✓ Clean |
| Hazmat | 0 | ✓ Clean |
Operator & inspection history
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Related
Frequently Asked Questions
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Why was 2025 GMC Sierra HD VIN 1GT4UPEY8SF358279 placed out of service?
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