NPR Pistons w/ Rings fit Size:Oversize 1.00mm / 0.040in 4L L4 SOHC 16v

4L L4 SOHC 16v

Part Numbers: PR4186C

1974 GMC K25/K2500 PICKUP 7

1993-1995 FORD PROBE 2

Part Numbers: HS3033

NPR Pistons w/ Rings fit Size:Oversize 1.00mm / 0.040in 4L L4 SOHC 16vNPR Pistons w Rings fit. A piston is a cylindrical piece of metal that moves up and down inside each cylinder, compressing the air fuel mixture and capturing the force created by the combustion process. This force is then transferred to the crankshaft, via the connecting rod. Symptoms of a Bad or Failing Piston include engine misfire, excessive oil consumption, knocking or slapping noise from inside engine. Be sure to have your engine pistons replace