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

Coolant Reservoir Cap 54216 Features:

• Fits 2006-2011 Buick Lucerne; 2006-2011 Cadillac DTS; 2004-2009 Cadillac XLR; 2005-2010 Chevrolet Corvette
• 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