NPR Pistons w/ Rings fit 98-10 Chrysler Dodge 2.7L V6 DOHC VIN R U T Water Pump One water pump has 7

One water pump has 7 grooves on the pulley and the other water pump has 8 grooves on the pulley

Part Numbers: 8-21205

reduce cylinder wear

1987 GMC R1500 SUBURBAN 5

NPR Pistons w/ Rings fit 98-10 Chrysler Dodge 2.7L V6 DOHC VIN R U T Water Pump One water pump has 7NPR Pistons w Rings fit 98 10 Chrysler Dodge 2. 7L V6 DOHC VIN R U T. 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.