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Piston Diameter

WARNING: This page is about a different car, the 2019 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

For information on Ford Color Coded Illustrations refer to OEM COLOR CODING .

Check 

NOTE: Refer to the appropriate service information for the specification.
  1. Measure the piston diameter 90 degrees from the piston pin and 41 mm (1.61 in) down from the top of the piston at the point indicated.
GFD370573Courtesy of FORD MOTOR COMPANY