Buy Caterpillar Parts Online




PartStore has Moved!

Effective November 22, 2016, Parts.Cat.Com will be your home for finding all Cat parts.

  • Quick registration
  • Pay online by credit card
  • Order 24/7
  • Real-time pricing
  • Easy shipping
  • Caterpillar has 6-month warranty all parts
  • CAT Classic, CAT Re-Manufactured, CAT Genuine and CAT Original parts

Parts Return Policy

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Cat Equipment is surprisingly affordable for any budget!

H.O. Penn is here for your equipment needs!  Find a Location or Contact Us today for a free Quote!