The 2013 Nissan Frontier has 16 valves.
The 2014 Nissan Frontier has 16 valves.
The 2010 Nissan Frontier has 16 valves.
The 2012 Nissan Frontier has 16 valves.
The 2009 Nissan Frontier has 16 valves.
The 2011 Nissan Frontier has 16 valves.
The 2007 Nissan Frontier has 16 valves.
The 2008 Nissan Frontier has 16 valves.
The 2004 Nissan Frontier has 16 valves.
The 2002 Nissan Frontier has 16 valves.
The 2001 Nissan Frontier has 16 valves.
The 2005 Nissan Frontier has 16 valves.