Mfour Transport Inc is an active interstate carrier based in Naperville, IL.
No insurance filings on record.
View on FMCSA L&I| Vehicle Type | Owned | Term Leased | Trip Leased |
|---|---|---|---|
| Straight Trucks | 38 | 0 | 0 |
| Tractors | 0 | 38 | 0 |
| Trailers | 0 | 38 | 0 |
| Total Power Units | 38 | ||
Distinct vehicles · 24 mo
vs 38 self-reported (MCS-150)
Top makes
Registered in
Higher values = more violations. 0 = clean record.
| Category |
|---|
| Category | vs. Cohort | vs. State | Reading |
|---|---|---|---|
| Unsafe Driving | 76% | 90% | Worse than most peers |
| HOS Compliance | 59% | 89% | Around peer average |
| Driver Fitness | 71% | 92% | Around peer average |
| Controlled Substances | 0% | 0% | Better than most peers |
| Vehicle Maintenance | 47% | 82% | Around peer average |
Lower percentile = lower SMS measure = stronger safety record. Computed nightly across active carriers in the same state and fleet-size band.
| Type | Inspections | OOS | OOS % | Nat'l Avg |
|---|---|---|---|---|
| Driver | 0 | 6 | — | 6.67% |
| Vehicle | 0 | 17 | — | 22.26% |
| Hazmat | 0 | 0 | — |
| Period | Fatalities | Injuries | Tow-away | Total |
|---|---|---|---|---|
| Jan 1, 2026 | 0 | 0 | 1 | 1 |
| Apr 1, 2025 | 0 | 0 | 1 | 1 |
| Jan 1, 2025 | 0 | 0 | 1 | 1 |
Most-cited violation codes
| BASIC Category | Total | Severe | OOS |
|---|---|---|---|
| Vehicle Maintenance | 62 |
| Date | State | Vehicle | Violations | OOS |
|---|---|---|---|---|
| Mar 11, 2026 | ND | TRUCK TRACTOR | 0 | 0 |
| Mar 10, 2026 | UT | TRUCK TRACTOR | 0 | 0 |
| Mar 6, 2026 | WA | TRUCK TRACTOR | 0 | 0 |
| Mar 4, 2026 | CO | TRUCK TRACTOR | 1 | 0 |
| Mar 2, 2026 |
| Insp w/ Viol |
|---|
| Measure |
|---|
| Alert |
|---|
| Unsafe Driving | 22 | 3.18 | — |
| HOS Compliance | 17 | 0.29 | — |
| Vehicle Maintenance | 45 | 3.47 | — |
| Driver Fitness | 7 | 0.19 | — |
| Controlled Substances | 0 | 0.00 | — |
| 4.44% |
Where they run
Inspected in 36 states. Top state CA accounts for 12% of activity. Activity outside home state (IL): 100%.
+31 other states with fewer inspections
| 28 |
| 20 |
| Unsafe Driving | 23 | 8 | 0 |
| Hours-of-Service Compliance | 19 | 7 | 2 |
| Driver Fitness | 7 | 1 | 4 |
| AL |
| TRUCK TRACTOR |
| 0 |
| 0 |
| Feb 26, 2026 | CA | TRUCK TRACTOR | 0 | 0 |
| Feb 25, 2026 | CA | TRUCK TRACTOR | 1 | 1 |
| Feb 22, 2026 | NM | TRUCK TRACTOR | 0 | 0 |
| Feb 21, 2026 | UT | TRUCK TRACTOR | 2 | 1 |
| Feb 21, 2026 | IN | TRUCK TRACTOR | 1 | 0 |
| Date | Code | Description | BASIC | OOS |
|---|---|---|---|---|
| Mar 4, 2026 | 39375A3ATIS | Tires - All others leaking in tread area with inflation more than 50% of the maximum inflation pressure on tire equipped with ATIS | Vehicle Maintenance | — |
| Feb 25, 2026 | 3963A1BOS | Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination | Vehicle Maintenance | Yes |
| Feb 21, 2026 | 393209DSTBSM | Steering - Ball and socket joint has movement under load of the stud nut | Vehicle Maintenance | Yes |
| Feb 21, 2026 | 39345B2BAIR | Air Brake - Hose/tubing damaged or not secured | Vehicle Maintenance | — |
| Feb 21, 2026 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Feb 19, 2026 | 3939TS | Inoperative turn signal | Vehicle Maintenance | Yes |
| Feb 12, 2026 | 39111B2Q | Driver cannot satisfy the English language proficiency requirements of 391.11(b)(2) as per FMCSA Enforcement Guidance Memo MC-SEE-2025-0001. Driver failed the I | Driver Fitness | Yes |
| Jan 28, 2026 | 3958A1HOSP | HOS (Property) - Failing to have a record of duty status using the method prescribed | Hours-of-Service Compliance | Yes |
| Jan 20, 2026 | 3922SLLS2 | State/Local Laws - Speeding 6-10 miles per hour over the speed limit | Unsafe Driving | — |
| Jan 7, 2026 | 39375A3TAOL | Tires - All others leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS | Vehicle Maintenance | Yes |