Engine Oil Cooler Nut is a direct fit for the following:

2002-2005 Cadillac Escalade
2006-2010 Chevrolet Express
2001-2010 Chevrolet Silverado
1992-1993 Chevrolet Storm
2001-2005 Chevrolet Suburban
2006-2010 GMC Savana
2001-2010 GMC Sierra
2001-2005 GMC Yukon

Genuine GM Part Number: 98302918