If your question was "Does a 2004 Nissan Frontier have a timing belt?", the answer is YES if it's a V-6 engine, and NO if it's a 4-cylinder. The 4-cylinder engine has a timing chain rather than a belt.
chain
The 3.3 litre V6 engine in a 1999 Nissan Frontier has a timing BELT
The 3.3 liter V6 engine in a 1999 Nissan Frontier has a timing BELT
The 3.3 litre V6 engine in a 2003 Nissan Frontier has a timing BELT
when is the last year nissan frontier use a timing belt
It has a cam belt that must be replaced every 105,000 miles. Warning: This is an interference engine.
The manufacturer recommends that you change your 2000 Nissan Frontier four-cylinder engine timing belt every 60,000 miles. The 2000 Nissan Frontier does not have a timing chain, it has a timing belt.
The 4.0 litre V6 engine in a 2010 Nissan Frontier has a timing CHAIN
Timing belt
2004 Nissan Maxima has a timing chain.
Nissan's 2.4 has a timing chain upper and lower.
I'm pretty sure the 05 Frontier has a timing chain.