Buy 2009 Nissan Titan Crew Cab LE 5.6L V8 AT 2WD Engine Timing Chain Tensioner. Camshaft and valve Camshaft, BED - OEM Nissan Part # 13091-7S012 (13091-7S010, 13091-7S011, 130917S012)

Guide Chain, Slack Side.
An oil pressurized tensioner that keeps the chain that runs from the crankshaft to camshaft or the chain that runs from camshaft to camshaft, from becoming loose and jumping a tooth or more causing engine damage or out of sync crankshaft to camshaft timing.

Fits Armada, NV1500, NV2500, NV3500, Pathfinder, Patrol, Titan