VIN 1HTWNAZT87J488555 — 2007 International (INTL) SF637
Recorded with Chad Blake · USDOT 1548393
Vehicle identity
| VIN | 1HTWNAZT87J488555 |
| Model year | 2007 |
| Make | International (INTL) |
| Model | SF637 |
| Vehicle type | STRAIGHT TRUCK |
| License plate | AL 63A4135 (Alabama) |
| Inspection window | 2024-10-31 to 2025-10-20 |
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 |
|---|---|---|---|
| 2025-10-20 | 1HTWNAZT87J488555 | AL 63A4135 | CHAD BLAKE · USDOT 1548393 |
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
Chad Blake Active
- USDOT
- 1548393
- MC
- —
- Status
- Active
- Type
- Motor Carrier
- Based in
- Mc Calla, AL
- Power units
- 4
- Drivers
- 2
- Inspections (24 mo)
- 6
- Crashes (24 mo)
- 1
- Vehicle OOS rate
- 80%
Carrier recorded at the latest inspection in the available records (2025-10-20). 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
1HTWNAZT87J488555 is a 2007 International SF637 operated by Chad Blake (USDOT 1548393). License plate on its inspection records: AL 63A4135. 3 roadside inspections on FMCSA record. 2 out-of-service results on record.
What this VIN is
2007 International SF637 is the vehicle NHTSA’s VIN registry returns for 1HTWNAZT87J488555. It is a truck built by INTERNATIONAL MOTORS, LLC at the GARLAND, TEXAS plant. Powertrain: International 570 / Maxxforce 9 &10 engine, 9.340626480L 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 3 FMCSA roadside inspections between 2024-10-31 and 2025-10-20. Its records show 2 out-of-service violations across 3 inspections. Out-of-service breakdown: 2 vehicle. Its most recent inspection (2025-10-20) was in Alabama, a Level II — walk-around inspection of the driver and the vehicle. Of 8 recorded violations, the most come from Vehicle Maintenance (8). Vehicle Maintenance covers brakes, lights, tires, load securement and other mechanical condition items.
Operator history
Operated by Chad Blake (USDOT 1548393) from 2024-10-31 to 2025-10-20 — 3 inspections, 2 out-of-service.
Full spec sheet (NHTSA vPIC decode)
| Make | INTERNATIONAL |
| Model | SF637 |
| Model Year | 2007 |
| Series | WorkStar 7500 |
| 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 | INTERNATIONAL MOTORS, LLC The legal manufacturer of record in NHTSA’s database. |
| Plant City | GARLAND Where the chassis was assembled — useful for verifying the VIN against the build record. |
| Plant State | TEXAS |
| Plant Country | UNITED STATES (USA) |
| Engine Model | International 570 / Maxxforce 9 &10 The engine family installed at the factory — a major driver of resale value and parts availability. |
| Displacement L | 9.340626480 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 | 8 | ⚠ 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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Frequently Asked Questions
What does VIN 1HTWNAZT87J488555 decode to?
Why was 2007 International SF637 VIN 1HTWNAZT87J488555 placed out of service?
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