Piston Selection

2015 Lincoln MKS Base, AWDSECTION Piston Selection
WARNING: This page is about a different car, the 2015 Lincoln MKT. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: The cylinder bore must be within the specifications for taper and out-of-round before fitting a piston.

  • 1.

    Select a piston size based on the cylinder bore.
GFD91346Courtesy of FORD MOTOR COMPANY

  • 2.

    NOTE: For precision fit, new pistons are divided into 3 categories within each size range based on their relative position within the range. A paint spot or specific size grade on a new piston indicates the position within the size range.

    Choose the piston with the correct paint color or specific size grade.

    • Refer to the appropriate Engine article for the procedure.
GFD91360Courtesy of FORD MOTOR COMPANY
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.