there 6 1/2 but when i tired to install them they didnt line up with the holes, so ull have to drill new ones. and FYI dont get the 200+ watt speakers cause they are too tall and will interfear with ur window
The 2001 Nissan Frontier has an inline 4 engine.
The 2001 Nissan Frontier has a 2.4 L base engine size.
From what I can find out, it seems to be 6.5".
The rear speakers in a 2002 Nissan Frontier measure 4 inches and are located in the back doors. The front door speakers measure 6 3/4 inches.
6x9 component in the front, 6.5 rear door.
2000,nissan frontier speakers size-------6 1/2 Try to use the Nissan speaker adapters plugs so you don't need to cut wires and mess up the electric system, you can get those from eBay or amazon.
front 6x9, rear 6.5
The 2010 Frontier have 3.5 tweeters (Front dash) 6/9 front doors and 6.5 in rear door.
6 X 9 on the front doors and 6 1/2 on the rear.
The 2011 Nissan Frontier has a 2.5 L base engine size.
The 2009 Nissan Frontier has a 2.5 L base engine size.
The 2008 Nissan Frontier has a 2.5 L base engine size.