There are 2.
The 2001 Toyota Highlander has 16 valves.
The 2001 Toyota Highlander's engine produces 155 hp @ 5600 rpm.
4
4
The gas tank on the 2001 Toyota Highlander holds 19.8 gal..
The 2008 Toyota Highlander has 24 valves.
The 2004 Toyota Highlander has 16 valves.
The 2007 Toyota Highlander has 16 valves.
The 2012 Toyota Highlander has 16 valves.
The 2009 Toyota Highlander has 16 valves.
The 2006 Toyota Highlander has 24 valves.
The 2005 Toyota Highlander has 16 valves.