Corvette Oil Filler Cap Installation

Tools you will need:
Two hands
  • Candy bar
  • Expect approximately 30 seconds – 10 minute install time*
    Part Numbers and Parts Used
    • 1997-200? Corvette Oil Filler Cap
      Part Number:  12555685
    * Depending on how long it takes to eat the candy bar
    Date:  March 11, 2000
    Car:  1999 Z28 Camaro, 9,900 miles
    Installers:  Eric and Kelly Barger
    People who helped us from major tech talk to general advice:
    • MannyZ28
    • All my buds at
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    Perform all these installs at your own risk.  Know how to use all of your shop equipment and take necessary safety precautions when performing ANY modifications and or maintenance items to your vehicle.  Seek the advice of a paid professional and do not substitute this publication for the advice of a paid professional.  This product is how we accomplished our installs and is not meant to be carved in stone.  We are not responsible for a mistake, misprint, or any other error found in this guide.  This guide is intended as a supplement and not to be your only source of information.
    Purpose:  The oil filler cap was installed to dress up the engine compartment.
    Preface:  Before you start into this install be sure you have a candy bar.  You might also want to know how to use your hands during this install to help make the job a lot easier.
    1. We opened the hood and located the factory oil filler cap (see blue arrow in Figure 1 below)
    Figure 1
    2.  We put a tight grip on the factory oil filler cap with our right hand (candy bar in left).  We turned the cap counter clockwise until we could lift the oil filler cap free from the car.  Then we replaced with the Corvette oil filler cap, turning the opposite direction than removing the cap.
    3.  Munch on candy bar.  Wipe off sweat.  See the finished job in Figure 2 below.  Throw away candy bar wrapper.
    Figure 2
    Comments:  The engine compartment has a cleaner look with the new oil filler cap.  This has been the most noticeable improvement to date on the car.  This mod helps keep horsepower from escaping from our valve covers. ;-)