Trucking Industry Testing - Clark Testing

Trucking Industry Testing

Clark Testing has a long history of both component and full vehicle validation and testing services for truck and trailer manufactures. Our engineers have many years of experience in stress analysis, strength and fatigue testing of structural components, beam fatigue and systems. Our laboratory is proud to continually maintain its certification to ISO/IEC 17025:2005 accreditation, certificate number L2163. The Clark TestingStructural Testing Laboratory also specializes in ROPS/FOPS testing, dynamometer testing, and rotary fatigue testing.

Certification and Standards

  • SAE
  • ASME
  • ANSI
  • ISO
  • MIL-STDs

Clark Testing provides cab safety certification with our ROPS, FOPS, and TOPS testing services in accordance with SAE J/ISO 3471. We qualify structures and cabs typically installed on almost any type of operator driven or stationary machinery. These ROPS, FOPS, and TOPS tests insure the protection and safety of operators from a rollover (ROPS), tip over (TOPS), and a falling object (FOPS). Clark Testing has facilities and capabilities to perform destructive testing of large off highway equipment requiring extreme loads in excess of 1 million pounds.


  • Bumper Strength
  • Front and Rear Suspension
  • Brakes
  • Drive Line
  • Transmissions
  • Transfer Cases
  • Durability Testing
  • Differential
  • Effciency Measurement
  • Torque Bias
  • Field Services
  • Pull Testing
  • Fifth Wheel Testing
  • Fluid Analysis
  • Torsional Testing
  • Dynamic Aging
  • Gear Fatigue and Durability
  • Axle Shafts
  • Torsion Bars
  • Power Take Off Units
  • Hydraulic Components
  • Condition Monitoring

Testing Services


Clark Dynamics has the environmental chambers to accelerate aging and validate functional performance for longer plant-life expectancy. Clark can accommodate large component aging for extended periods simulating containment internal conditions as high as 170C.

Learn More about Environmental

Electromagnetic Compatibility (EMC)

Common to automated systems and electronics in the industry is the requirement to ensure electromagnetic compatibility of components and mitigate vulnerability to outside sources. Emissions and Immunity analysis provides insight as to the potentially undesirable propagation and reception of electromagnetic energy and radiofrequency interference.

Learn More about EMC / EMI

Structural, Load & Fatigue

Unique to each test specimen are its functional and design-basis lifetime requirements. Clark’s facilities have the equipment and technical expertise to test a variety of components for mechanical fatigue and failure, life cycle, aging, accelerated aging, and simulation.

Learn More about Structural, Load and Fatigue

Shock and Vibration

Clark Testing’s Vibration laboratory has multiple hydraulic and electrodynamic shakers making Clark Testing the ideal fit for all your testing needs. Our Vibration laboratorys' investment in new equipment has led to Clark Testing being an industry leader in Vibration Testing.

Learn More about Shock and Vibration

Powertrain and Gearbox

Clark Testing has been in the powertrain & gearbox testing business for over 20 years. Over that time we have tested products ranging from small components such as starters and air motors to transmissions and axles in excess of 2000 horsepower. ciency for anything from heavy off-road industrial equipment to high performance motorized competition vehicles.

Learn More about Powertrain and Gearbox

Fuels and Lubricants

The Fuels and Lubricants lab specializes in wear testing of products based on test rigs such as Four-Ball wear, Hydraulic Pump Wear, and FZG Gear. Clark Testing Fuels & Lubricants Laboratory is fully equipped to perform tests ranging from routine analyses to quality control.

Learn More about Fuels and Lubricants

Request a Quote

Clark Testing has been providing product qualification testing and design verification for manufactures for over 20 years. We provide our clients with independent testing.

Request a Quote

Ask an Expert

Question about our testing services? Please click below to submit your question to our staff and a engineer will be in contact with you shortly

Submit Question

View Our Accreditations

Clark Testing continuously operates under stringent quality assurance guidelines ensure all policies, practices and procedures meet or exceed industry standards. Clark’s QA/QC programs follow the accreditation guidelines of ISO 17025-2017, 10CFR50 Appendix B, NQA-1 and AIHA.

Quality & Accreditations