Should be an 18 gallon gas tank
25 Gallons will fill the tank for a Toyota 4Runner
The gas tank on the 2003 Toyota 4Runner holds 23.0 gal..
The gas tank on the 2006 Toyota 4Runner holds 23.0 gal..
The gas tank on the 2011 Toyota 4Runner holds 23.0 gal..
The gas tank on the 2007 Toyota 4Runner holds 23.0 gal..
The gas tank on the 2014 Toyota 4Runner holds 23.0 gal..
The gas tank on the 2010 Toyota 4Runner holds 24.0 gal..
The gas tank on the 2009 Toyota 4Runner holds 23.0 gal..
The gas tank on the 2012 Toyota 4Runner holds 23.0 gal..
The gas tank on the 2005 Toyota 4Runner holds 23.0 gal..
The gas tank on the 2002 Toyota 4Runner holds 18.5 gal..
The gas tank on the 2008 Toyota 4Runner holds 23.0 gal..