Helps keep coolant from flowing out of your vehicle's engine coolant recovery tank
Helps keep coolant pressure at required level
Some may have formerly appeared as ACDelco GM Original Equipment (OE)
are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM regularly updates production and service part designs to integrate new materials and technologies