Approval Details

Valid E.O.


This Executive Order approved the specified parts on on October 6, 1992.
As of Tuesday, May 21st, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

1992 model year Ford Motor Company vehicles powered by a 7.3L Navistar International heavy-duty diesel engine.Modifications to the OEM emission-related parts due to the installation of the turbocharger kit include replacement of the OEM exhaust systems with a 3-1/2" diameter exhaust system.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-175-4
  • Executive Order 175-4 / D175-4
  • ARB # D-175-4
  • Executive Order No: D-175-4
  • C.A.R.B. No. D-175-4
  • Resolution D-175-4
For Free CARB Executive Order Status verification, email an image of the device Executive Order label as well as the Year/Make/Model and Test Group # of the vehicle to [email protected]

Download: Executive Order D-175-4 PDF

D-175-4 Document:

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