Best Seller | 2000-2011 Chevrolet Impala Auto Trans Side Cover Gasket - Felpro TOS 18723 Chevrolet Impala Auto Trans Side Cover Gasket. Brand: Felpro. Fits Years: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11. Automatic Transmission Side Cover Gasket - TOS 18723 more | | $31.97 go to store |