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Freight Carrier · Woodward, OK

KNOWLES ENTERPRISES

22154 US HWY 270 · Woodward, OK 73801

AUTHORIZED FOR:
(970) 434-1912 Tap to call
  • MC #667980
  • USDOT #1246064 USDOT Active
  • 143
    Power Units
  • 160
    Drivers
  • Carrier
    Entity Type

About this carrier

KNOWLES ENTERPRISES is a Woodward, OK freight carrier that is authorized for: in the state of Oklahoma. This company has 143 truck(s) in their fleet and 160 truck drivers. Their motor carrier number is MC-667980 and their USDOT number is 1246064.

Sourced from FMCSA SAFER · last filed 12/03/2025 · last updated Aug 18, 2026.

Carrier Details

  • Legal Name KNOWLES TRUCKING LLC
  • Operating Status AUTHORIZED FOR:
  • MCS-150 Filed 12/03/2025
  • MCS-150 Mileage 14,355,792 (2023)

Authority & Operations

Operation Classification
  • Authorized for Hire
Carrier Operation
  • Interstate

Cargo Authorized

  • Liquids/Gases
  • Construction

Operating Territory

Map of states where this carrier has roadside inspections Texas — 156 inspections (past 24 months) Texas — 156 inspections (past 24 months) Oklahoma — 24 inspections (past 24 months) Colorado — 17 inspections (past 24 months)

Inspection activity   Inspected in 3 states over the past 24 months: TX (156), OK (24), CO (17). Home base: Woodward, Oklahoma.

Safety Record

100 Severe Violations Updated Sep 3, 2026

Crashes (24 mo)

  • 1
    Fatal
  • 4
    Injury
  • 5
    Tow
  • 10
    Total

Behavior Categories (BASICs)

CategoryMeasureViolations Unsafe Driving 0.06 1 Crash Indicator Not Public — Hours of Service 0 0 Vehicle Maintenance 11.47 158 Drugs / Alcohol 0 0 Hazmat Not Public — Driver Fitness 0.07 2

Inspection Summary

  • 197
    Total
  • 36
    Clean
  • 161
    With violations

24-month window ending Jul 31, 2026

Violations Cited 128 unique codes

Critical 41

  • 393.75(a)(3)Tire-flat and/or audible air leak36× OOS×36 SW 8
  • 393.75(a)(1)Tire-ply or belt material exposed8× OOS×2 SW 8
  • 393.75(a)(2)Tire-tread and/or sidewall separation7× OOS×2 SW 8
  • 383.23(a)(2)Operating a CMV without a CDL2× OOS×2 SW 8
  • 393.75A3-TAOLTires - All others, leaking or inflation less than 50% of the maximum inflation pressure on tire not equipped with ATIS2× OOS×2 SW 8
  • 393.75(c)Tire-other tread depth less than 2/32 of inch measured in a major tread groove17× OOS×1 SW 8
  • 393.75(a)(4)Tire-cut exposing ply and/or belt material4× OOS×1 SW 8
  • 393.75(a)Flat tire or fabric exposed1× OOS×1 SW 8
  • 393.75A1-TEPBMTires - All others - Exposed ply or belt material in tread or sidewall area1× SW 8
  • 393.75C-TAOTD-LT2/32Tires - Less than 2/32 inch tread depth1× SW 8
  • 396.3(a)(1)Tires - Use of Tire Plug or Cord1× SW 8
  • 178.345-6-HMPHM (Packaging) - DOT 406/407/412 supports and anchoring requirements.1× SW 8
  • 393.207(a)Axle positioning parts defective/missing8× OOS×6 SW 7
  • 393.207(c)Leaf spring assembly defective/missing5× OOS×3 SW 7
  • 393.207A-SAPPCBLMSuspension - Axle positioning part cracked/broken/loose/missing.3× OOS×1 SW 7
  • 393.207A-SAPPASSuspension - Axle positioning part cracked/broken/loose/missing resulting in axle shift1× OOS×1 SW 7
  • 393.207A-STBWSuspension - Suspension connecting rod or tracking component assembly missing the rubber bushing or the rubber bushing is worn to the extent that the component can be moved by hand along the axis of the component1× OOS×1 SW 7
  • 393.9TSInoperative turn signal17× OOS×5 SW 6
  • 393.9A-LSLIWRLighting - Stop lamps - Both inoperative when required to be on2× OOS×2 SW 6
  • 393.209(d)Steering system components worn, welded, or missing1× OOS×1 SW 6
  • 396.3(a)(1)Tie Rods / Drag Links - Defective Clamps / Holes / Missing nuts1× OOS×1 SW 6
  • 393.45Brake tubing and hose adequacy3× OOS×2 SW 4
  • 396.3A1BLBrake system pressure loss2× OOS×2 SW 4
  • 396.3(a)(1)Brake - Hole in Spring Brake Housing2× OOS×2 SW 4
  • 393.48(a)Inoperative/defective brakes10× OOS×1 SW 4
  • 393.45PCBrake Tubing and Hose Adequacy - Connections to Power Unit5× OOS×1 SW 4
  • 393.45B2-BHTDAir Brake - Hose/tubing damage into the outer reinforcement ply.1× OOS×1 SW 4
  • 393.45D-BAALAir Brake - Audible air leak at other than a proper connection1× OOS×1 SW 4
  • 393.47(b)Mis-matched brake chambers on same axle1× OOS×1 SW 4
  • 393.51C-BAPGAir Brake - Inoperative/defective primary or secondary pressure gauge1× OOS×1 SW 4
  • 396.3A1-BALRAir Brake - Fails air loss rate test1× OOS×1 SW 4
  • 393.70B1IDefective latching fasteners - Fasteners on either side of the vehicle are missing or ineffective1× OOS×1 SW 3
  • 396.3A1DSCBCenter Bearing (Carrier Bearing) Cracked / Loose / Broken / Missing1× OOS×1 SW 3
  • 393.9Inoperable Required Lamp61× OOS×8 SW 2
  • 393.205(c)Wheel fasteners loose and/or missing2× OOS×2 SW 2
  • 396.3(a)(1)Inspection, repair and maintenance of parts and accessories16× OOS×1 SW 2
  • 393.201(a)Frame cracked / loose / sagging / broken3× OOS×1 SW 2
  • 396.5B-HWSLOWHubs - Wheel seal leaking - outer wheel2× OOS×1 SW 2
  • 396.5A-HNLOWHubs - No visible or measurable lubricant showing in the hub - outer wheel1× OOS×1 SW 2
  • 392.9A2-CCargo - Vehicle components or dunnage not secured5× OOS×5 SW 1
  • 396.3(a)1BOSBrake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination15× OOS×15 SW 0

Hazardous Materials 13

  • 180.415(b)Cargo tank test or inspection markings1× SW 7
  • 172.328(d)Fail to mark manual remote shutoff device with "Emergency Shutoff"2× SW 5
  • 172.504(a)Vehicle not placarded as required1× SW 5
  • 172.516(c)(6)Placard damaged, deteriorated, or obscured1× SW 5
  • 172.602(c)(1)Maintenance/accessibility of Emergency Response information6× SW 3
  • 177.817(e)Shipping paper accessibility3× SW 3
  • 172.202(a)(2)No or improper Shipping Name2× SW 3
  • 172.201(a)(2)Hazardous Materials description not printed legibly in English1× SW 3
  • 172.201(d)ER phone number not in compliance with Subpart G1× SW 3
  • 172.202(a)(1)No or improper Identification Number1× SW 3
  • 172.202(a)(3)No or improper Hazard Class or Division number1× SW 3
  • 172.202(a)(4)No or improper Packing Group listed1× SW 3
  • 177.817(a)No or improper shipping papers (carrier)1× SW 3

Vehicle Maintenance 73

  • 393.9HInoperable head lamps12× SW 6
  • 393.9A-LSLILighting - Stop lamps - Any inoperative.7× SW 6
  • 393.209(e)Power steering violations4× SW 6
  • 393.9A-LTSIRLighting - Turn signal -Any inoperative on a unit that is not the rearmost unit3× SW 6
  • 393.19Inoperative/Defective Hazard Warning Lamp2× SW 6
  • 393.9A-HLLHLighting - Headlamp(s) fail to operate on low and high beam2× SW 6
  • 393.9A-LFTSILighting - Front - Turn signal - inoperative2× SW 6
  • 393.9A-LHLILighting - Headlamp(s) - Any inoperative2× SW 6
  • 393.9A-LRLILighting - Tail lamp - Any inoperative2× SW 6
  • 393.9TInoperable tail lamp2× SW 6
  • 393.209E-SPSLASteering - Power steering leaking anywhere.1× SW 6
  • 393.24(a)Non-compliance with headlamp requirements1× SW 6
  • 393.24A-LLighting-Headlamps not steady burning as required.1× SW 6
  • 393.24C-LLighting - Headlamp(s) improperly mounted1× SW 6
  • 393.47(e)Brake Out of Adjustment - Roto, Clamp (Short & Long), DD-3, or Bolt18× SW 4
  • 393.55(e)No or Defective ABS Malfunction Indicator Lamp for trailer manufactured after 03/01/199816× SW 4
  • 393.53(b)CMV manufactured after 10/19/94 has an automatic airbrake adjustment system that fails to compensate for wear15× SW 4
  • 396.3A1BBrakes (general) Explain:14× SW 4
  • 396.17C-PIOperating a CMV without documentation of a periodic inspection9× SW 4
  • 393.45B2UVBrake Hose or Tubing Chafing and/or Kinking Under Vehicle7× SW 4
  • 393.45DLUVBrake Connections with Leaks Under Vehicle7× SW 4
  • 396.17(c)Operating a CMV without proof of a periodic inspection6× SW 4
  • 393.45D-BAir Brake - Audible air leak at a proper connection5× SW 4
  • 393.45DLPCBrake Connections with Leaks - Connection to Power Unit3× SW 4
  • 393.47(a)Inadequate brakes for safe stopping - Brake Lining condition3× SW 4
  • 393.55E-BAir Brake - ABS malfunction lamp defective on trailers manufactured on or after March 1, 19983× SW 4
  • 393.45B2PCBrake Hose or Tubing Chafing and/or Kinking - Connection to Power Unit2× SW 4
  • 393.50(c)No means to ensure operable check valve2× SW 4
  • 393.53B-BAir Brake - CMV manufactured on or after 10/20/1994 has an automatic airbrake adjustment system that fails to compensate for wear2× SW 4
  • 393.55D2-BAir Brake - ABS malfunction lamp defective on truck-tractor manufactured on or after March 1, 2001 for towed vehicle.2× SW 4
  • 393.55(d)(3)No or Defective ABS Malfunction Indicator for towed vehicles on vehicles manufactured after February 20012× SW 4
  • 393.45B2-B-AIRAir Brake - Hose/tubing damaged or not secured1× SW 4
  • 393.45(d)Brake connections with leaks or constrictions1× SW 4
  • 393.45DCUVBrake Connections with Constrictions Under Vehicle1× SW 4
  • 393.47D2-BLTBDDrum Brake - Inadequate lining/pad thickness1× SW 4
  • 393.48A-BIBDDrum Brake - Inoperative other than a steering axle1× SW 4
  • 393.48A-BI-TSABrake - Inoperative on a trailer steering axle1× SW 4

Unsafe Driving 1

Locations

Physical Address
KNOWLES ENTERPRISES
22154 US HWY 270
WOODWARD, OK 73801
Mailing Address
KNOWLES TRUCKING LLC
PO BOX 41017
GRAND JUNCTION, CO 81504

Location on Map

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