HaulerCheck · https://haulercheck.com/carrier/1246064-knowles-trucking-llc/ · Checked 2026-10-19 22:14 UTC · Census and inspections Oct 19, 2026 · Authority and insurance: Last known · FMCSA snapshot May 14, 2026
KNOWLES TRUCKING LLC
Doing business as KNOWLES ENTERPRISES
Review before booking · 2 signals
How risk signals workFacts from the FMCSA record that call for a closer look. They are not a finding of wrongdoing. Authority and insurance are last known from May 14, 2026.
- Conditional FMCSA safety ratingRated Mar 26, 2024. FMCSA found safety controls that needed correcting.
- Vehicle out-of-service rate well above the state average41.9% vs Oklahoma average 20.8%.
No cargo cover filed with FMCSA
Not a live check. FMCSA has not published a Motus record for this carrier, so authority and insurance show the last known status from May 14, 2026. Confirm on Motus ↗ before booking.
What to verify next
- Confirm authority and insurance on the official Motus record ↗: our copy is the last known status from May 14, 2026. Safety record: SAFER ↗.
- Call back on the number on file, (970) 434-1912, not a number from an email or load board.
- Check that the MC number you were given is MC667980.
- Ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Insurance on file
Liability (BI&PD) pays for injury and damage to other people and property; it does not cover the freight. Cargo insurance covers the freight. FMCSA only requires cargo filings from household goods carriers and freight forwarders, so most carriers file none: ask for a cargo certificate that fits your load. No cargo cover filed with FMCSA.
| Type | Docket | Layer | Insurer | Coverage | Effective | Status |
|---|---|---|---|---|---|---|
| Liability (BI&PD) | MC667980 | Primary | XL SPECIALTY INSURANCE COMPANY Policy AEC005846905 · 91X | $1,000,000 | Feb 1, 2026 | Active |
Source: Last known · FMCSA snapshot May 14, 2026. Identical filings repeated in the FMCSA data are shown once; a filing listed under two dockets is one policy, not extra coverage. Coverage is the maximum amount filed with FMCSA, not the full policy.
Last known filings. Insurance for this carrier comes from the FMCSA snapshot of May 14, 2026. Policies may have been cancelled or replaced since. Confirm current filings: Motus record ↗ and ask the insurer for a certificate naming you as holder.
Roadside inspections Oct 19, 2024 – Oct 19, 2026
91 of 217 · Oklahoma avg 20.8%
4 of 222 · Oklahoma avg 4.1%
10 most recent inspections
| Date | State | Level | Violations | Out of service |
|---|---|---|---|---|
| Oct 16, 2026 | OK | 2 | 8 | No |
| Oct 12, 2026 | TX | 2 | 1 | Yes |
| Oct 8, 2026 | TX | 2 | 2 | Yes |
| Oct 8, 2026 | TX | 2 | 0 | No |
| Oct 6, 2026 | TX | 2 | 3 | Yes |
| Oct 1, 2026 | TX | 2 | 8 | Yes |
| Sep 22, 2026 | TX | 2 | 8 | Yes |
| Sep 21, 2026 | TX | 2 | 3 | Yes |
| Sep 21, 2026 | TX | 2 | 1 | No |
| Sep 20, 2026 | TX | 2 | 3 | Yes |
How these rates are calculated
Period: Oct 19, 2024 – Oct 19, 2026. Vehicle rate = vehicle inspections with a vehicle out-of-service order ÷ vehicle inspections (levels 1, 2, 5 and 6). Driver rate uses levels 1, 2, 3 and 6. The Oklahoma average covers 27,931 vehicle and 43,864 driver inspections of all Oklahoma-based carriers in this period. It mixes every type of operation, so compare with care; rates based on a handful of inspections say little. FMCSA's own SMS measures are weighted differently: SMS profile ↗ · SAFER snapshot ↗
Violations in FMCSA's SMS last 24 months
596 violations counted in FMCSA's Safety Measurement System (SMS), 121 of them serious enough to put the driver or vehicle out of service.
Why is this different from the 822 violations above?
The inspections section's number counts every violation written on the inspection reports in our Oct 19, 2024 – Oct 19, 2026 window. The SMS count comes from FMCSA's own monthly SMS snapshot, which uses its own 24-month window and only the violations it scores. Both are FMCSA figures; they measure different things.
| Category (FMCSA BASIC) | Violations | Out of service | Share | Oklahoma share |
|---|---|---|---|---|
| Vehicle Maintenance | 568 | 119 | 95.3% | 73.5% |
| Hazardous Materials Compliance | 25 | 0 | 4.2% | 1.4% |
| Driver Fitness | 2 | 2 | 0.3% | 3.6% |
| Unsafe Driving | 1 | 0 | 0.2% | 10.9% |
10 most frequent violations
| Violation | Times | Out of service |
|---|---|---|
| Inoperable Required Lamp Clearance Identification Lamps/Other · Vehicle Maintenance · code 3939 | 63 | 8 |
| Tire-flat and/or audible air leak Tires · Vehicle Maintenance · code 39375A3 | 37 | 37 |
| Wipers - Inoperative / missing / damaged wipers Windshield/ Glass/ Markings · Vehicle Maintenance · code 39378 | 33 | 0 |
| Oil and/or grease leak Other Vehicle Defect · Vehicle Maintenance · code 3965B | 21 | 0 |
| Brake Out of Adjustment - Roto Clamp (Short & Long) DD-3 or Bolt Brakes Out of Adjustment · Vehicle Maintenance · code 39347E | 18 | 0 |
| Inoperative turn signal Lighting · Vehicle Maintenance · code 3939TS | 17 | 5 |
| Tire-other tread depth less than 2/32 of inch measured in a major tread groove Tires · Vehicle Maintenance · code 39375C | 16 | 1 |
| No or Defective ABS Malfunction Indicator Lamp for trailer manufactured after 03/01/1998 Brakes All Others · Vehicle Maintenance · code 39355E | 16 | 0 |
| Inspection repair and maintenance of parts and accessories Wheels Studs Clamps Etc. · Vehicle Maintenance · code 3963A1 | 15 | 1 |
| CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear Brakes All Others · Vehicle Maintenance · code 39353B | 15 | 0 |
Source: FMCSA SMS violation file, inspections in the last 24 months, published Oct 19, 2026. "Share" is this company's mix of violations; the Oklahoma column is the mix across all Oklahoma-based carriers, so you can see which kinds of problems stand out. A high count partly reflects fleet size and how often trucks are inspected.
Crashes Oct 19, 2024 – Oct 19, 2026
8 most recent crashes
| Date | Location | Fatalities | Injuries |
|---|---|---|---|
| May 22, 2026 | Kingfisher, OK | 0 | 1 |
| Dec 21, 2025 | Not Listed, TX | 0 | 1 |
| Dec 11, 2025 | Not Listed, TX | 1 | 1 |
| Nov 25, 2025 | Not Reported, CO | 0 | 1 |
| Sep 21, 2025 | Woodward, OK | 0 | 0 |
| Sep 9, 2025 | New Deal, TX | 0 | 0 |
| Mar 5, 2025 | Kingfisher, OK | 0 | 0 |
| Dec 9, 2024 | Not Listed, TX | 0 | 0 |
Reportable crashes do not imply the carrier was at fault.
Company details FMCSA census · Oct 19, 2026
| USDOT number | 1246064 |
|---|---|
| MC / docket | MC667980 |
| Legal name | KNOWLES TRUCKING LLC |
| DBA name | KNOWLES ENTERPRISES |
| Operation | Interstate |
| Business type | — |
| Power units | 143 |
| Drivers | 160 |
| Annual mileage | 14,355,792 (2023) |
| Hazmat | Yes |
| Safety rating | Conditional (Mar 26, 2024) |
| USDOT number added | May 10, 2004 · 22 years ago |
| Last MCS-150 update | Dec 3, 2025 |
Cargo carried
General FreightBuilding MaterialsMachinery, Large ObjectsLiquids/GasesOilfield EquipmentGarbage/RefuseCommodities Dry BulkConstructionOtherWater, Crude Oil
Change history
No changes to name, contact details, authority or insurance since we started tracking on Oct 18, 2026. We compare every company's FMCSA record each day.
to see it on your watchlist when something changes.
Questions about KNOWLES TRUCKING LLC
What does KNOWLES TRUCKING LLC's operating authority allow?
MC667980: Common carrier (may haul regulated property for hire for the general public).
Which information about KNOWLES TRUCKING LLC is old or missing?
Operating authority is the last known status from the FMCSA snapshot of May 14, 2026, not a current check. Insurance filings are from the same May 14, 2026 snapshot.
What should I verify before booking KNOWLES TRUCKING LLC?
Confirm the authority and insurance on the Motus record for USDOT 1246064. Call the company back on the phone number on file, (970) 434-1912, not a number from an email or load board message. Check that the MC number the dispatcher gave you matches MC667980, and ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Other trucking companies in Woodward, OK →
Company details from the FMCSA Company Census File (Oct 19, 2026). Inspections and crashes from FMCSA MCMIS files. About our data · Report an error on this page (how corrections work).
Page generated 2026-10-19 22:14 UTC.