VIN 1XKAD29X8MS558603 — 2021 Kenworth (KW) T6 Series
Recorded with J&J Trucking & Backhoe Services Llc · USDOT 2884554
Vehicle identity
| VIN | 1XKAD29X8MS558603 |
| Model year | 2021 |
| Make | Kenworth (KW) |
| Model | T6 Series |
| Vehicle type | STRAIGHT TRUCK |
| License plate | TX SCR3424 (Texas) |
| Last inspected | 2025-08-04 |
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 |
|---|---|---|---|
| 2025-08-04 | 1XKAD29X8MS558603 | TX SCR3424 | J&J TRUCKING & BACKHOE SERVICES LLC · USDOT 2884554 |
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
J&J Trucking & Backhoe Services Llc Active
- USDOT
- 2884554
- MC
- —
- Status
- Active
- Type
- Motor Carrier
- Based in
- San Juan, TX
- Power units
- 14
- Drivers
- 11
- Inspections (24 mo)
- 36
- Crashes (24 mo)
- 0
- Vehicle OOS rate
- 66.7%
Carrier recorded at the latest inspection in the available records (2025-08-04). 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
1XKAD29X8MS558603 is a 2021 Kenworth T6 Series operated by J&J Trucking & Backhoe Services Llc (USDOT 2884554). License plate on its inspection records: TX SCR3424. 1 roadside inspection on FMCSA record. 1 out-of-service result on record.
What this VIN is
2021 Kenworth T6 Series is the vehicle NHTSA’s VIN registry returns for 1XKAD29X8MS558603. It is a truck-tractor built by KENWORTH TRUCK COMPANY at the SEATTLE, WASHINGTON plant. Powertrain: ISL G/ISLGNZ/L9N engine, 8.9L displacement, running on natural gas. 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 1 FMCSA roadside inspection (most recent activity 2025-08-04). Its records show 1 out-of-service violation across 1 inspection. Out-of-service breakdown: 1 vehicle. Its most recent inspection (2025-08-04) was in Texas, a Level II — walk-around inspection of the driver and the vehicle. Of 2 recorded violations, the most come from Vehicle Maintenance (2). Vehicle Maintenance covers brakes, lights, tires, load securement and other mechanical condition items.
Operator history
Operated by J&J Trucking & Backhoe Services Llc (USDOT 2884554) on 2025-08-04 — 1 inspection, 1 out-of-service.
Full spec sheet (NHTSA vPIC decode)
| Make | KENWORTH |
| Model | T6 Series |
| Model Year | 2021 |
| 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 | SEATTLE Where the chassis was assembled — useful for verifying the VIN against the build record. |
| Plant State | WASHINGTON |
| Plant Country | UNITED STATES (USA) |
| Engine Model | ISL G/ISLGNZ/L9N The engine family installed at the factory — a major driver of resale value and parts availability. |
| Engine Cylinders | 6 |
| Displacement L | 8.9 Engine displacement in liters — bigger generally means more torque for heavy loads. |
| Fuel Type Primary | Natural Gas 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 | 2 | ! Moderate |
| Unsafe Driving | 0 | ✓ Clean |
| Driver Fitness | 0 | ✓ Clean |
| Fatigued Driving (HOS) | 0 | ✓ Clean |
| Controlled Substances | 0 | ✓ Clean |
| Hazmat | 0 | ✓ Clean |
Operator & inspection history
Related vehicles
- 1XKDDB9X17J174475 Kenworth (8 insp · 11 OOS)
- 1FUJA6CK75LN48271 Freightliner (4 insp · 8 OOS)
- 1XKADB9X55J085170 Kenworth (4 insp · 7 OOS)
- 1FUJBBCK99LAA3649 Freightliner (1 insp · 6 OOS)
- 1XKADR9X5NJ564844 Kenworth (2 insp · 4 OOS)
- 1XKADB9X3RS622621 Kenworth (5 insp · 3 OOS)
Related
Frequently Asked Questions
What does VIN 1XKAD29X8MS558603 decode to?
Why was 2021 Kenworth T6 Series VIN 1XKAD29X8MS558603 placed out of service?
What license plate is on VIN 1XKAD29X8MS558603?
Vetting a used truck purchase?
Tell us what you're looking for and we'll send matching new or used trucks — no obligation.