I have a 99 4Runner SR5; I believe it is an 18.3 gallon tank, but don't quote me on that. It is at least 18.
25 Gallons will fill the tank for a Toyota 4Runner
About 18 gallons
My 2002 Toyota 4Runner Sports Edition holds 18.5 gallons of fuel.
18.5
the 2003 toyota 4runner SR5, V6, holds 23 gal.
The gas tank on the 2010 Toyota 4Runner holds 24.0 gal..
The gas tank on the 2014 Toyota 4Runner holds 23.0 gal..
The gas tank on the 2009 Toyota 4Runner holds 23.0 gal..
The gas tank on the 2007 Toyota 4Runner holds 23.0 gal..
The gas tank on the 2002 Toyota 4Runner holds 18.5 gal..
The gas tank on the 2005 Toyota 4Runner holds 23.0 gal..
The gas tank on the 2008 Toyota 4Runner holds 23.0 gal..