Timing gear sets precisely synchronize rotation of the crankshaft and camshaft(s) in internal combustion engines. These components are located within the engine’s front cover, driving valve timing in relation to piston position. Sets typically include crankshaft sprocket, camshaft sprocket(s), and a timing chain or gear. Offered in various materials—steel, cast iron, or billet aluminum—and tooth profiles for optimized performance and durability. Aftermarket sets may feature adjustable cam timing for modified engine builds, or enhanced coatings for wear resistance. Proper installation requires accurate alignment and torque specifications to maintain engine timing.