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Illinois Auto Truck Co., Inc. (IATCO) has been in business since 1939 and focuses exclusively on the manufacturing of NEW clutch assemblies, components, and supplemental parts for class 6, 7, & 8 vehicles. Illinois Auto Truck has grown to be a fourth generation family owned company dedicated to quality, customer service and growth in the heavy & medium duty clutch market. All of the materials used in the manufacturing process are of the highest quality known in the clutch industry. Throughout the world we are known as “Best in the Clutch”.
About IATCO >>


  • Heavy Duty Clutches
  • Medium Duty Clutches
  • Clutch Components
  • Flywheels
  • Supplemental Parts & Tools
IATCO Products >>

IATCO Catalog

Illinois Auto Truck publishes a complete catalog listing the most commonly used NEW clutch assemblies, flywheels and supplemental parts. Also available is an extensive, interactive online catalog highlighting each part number available from components to complete clutch assemblies.
IATCO Catalog >>

Customer Support

Illinois Auto Truck is dedicated to providing exceptional customer service. The Customer Service / Technical Department is available Monday through Friday 7 AM – 5 PM (Central).Phone: 847-299-1100
Email: sales@iatcoinc.comIATCO offers a wide variety of services to aid the customer in promoting, selling and installing IATCO product.
IATCO Customer Support >>

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