APDTY 022121 Throttle Body To Intake Manifold Plenum Coupling Rubber Boot/Hose Fits Northstar 2000-2005 Cadillac Deville 4.6L / 2000-2002 Eldorado 4.6L / 2000-2004 Seville 4.6L / 2001-2003 Aurora 4.0L / 2004-2005 Bonneville GXP 4.6L (Replaces GM 12555840)