Remark: Intake Cam Sprockets are not included.This item includes:1 Timing Chain lower (primary, 178 links)2 Timing Chain upper (cam to cam)1 Tensioner primary (lower)1 Tensioner right (upper, secondary)1 Tensioner left (upper, secondary)2 Guide Rail (upper left & right)1 Guide Rail left (fixed rail)1 Guide Rail right (tensioner rail)2 Cam Sprocket (secondary - exhaust)1 Idler Sprocket (18 teeth)1 Crank Sprocket (18 teeth)Cam Sprockets (intake) - are not included1 Oil PumpCompatible With / Replacement For Following Models:2003-2009 4RUNNER 4.0L 3956CC 241CID V6 DOHC, (24 VALVE), ENG CODE "1GRFE"2007-2009 FJ CRUISER 4.0L 3956CC 241CID V6 DOHC, (24 VALVE), ENG CODE "1GRFE"2005-2012 TACOMA 4.0L 3956CC 241CID V6 DOHC, (24 VALVE), ENG CODE "1GRFE"2005-2010 TUNDRA 4.0L 3956CC 241CID V6 DOHC, (24 VALVE), ENG CODE "1GRFE"