Replace it seamlessly and effectively with this precisely engineered, direct replacement cap.

Engine Coolant Reservoir Cap 54217 Features:

• Fits 1982-2002 Buick; 1999 Cadillac; 1982-1995 Cadillac; 1982-2002 Chevrolet; 1982-1999 GMC; 1982-2002 Oldsmobile; 1982-2002 Pontiac
• Direct replacement — this engine coolant reservoir cap directly replaces a cracked or lost original cap
• Application specific — made to match dimensions of reservoir cap on only certain vehicle years, makes and models
• Seamless fit — reverse-engineered from the original equipment to fit perfectly