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Keep your Cat exhaust systems operating efficiently by choosing genuine Cat parts. Whenever you need a turbocharger bypass valve, exhaust couplings or some other replacement part, you are sure to find the right match right here.

  • Need a turbocharger exhaust coupling? Use the menu in the left-hand column to select the inside diameter of your exhaust pipe.
  • Need to find an exhaust bypass valve for a specific machine? Type your serial number into the search box above to filter to the bypass valve and other turbocharger exhaust parts that fits your equipment.