OEM Camshaft Timing Chain for the 2002-2006 Nissan Altima equipped with the 2.5L QR25DE engine. 

The Camshaft Timing Chain synchronizes the rotation of the crankshaft and camshaft(s) ensuring proper timing and allows the engine's valves to open and close during each cylinder's firing. The chain is located inside of the engine and needs to be lubricated by the oil in the engine, making oil maintenance important as well. 

Replace your worn out or broken Camshaft Timing Chain with this genuine Nissan replacement. 

Fits:

• 2002-2006 Nissan Altima (2.5L QR25DE equipped)