A timing belt is the lifeline of your engine. The timing belt connects the camshafts in the cylinder heads to the crankshaft in the engine block. When all of these components are connected your engine’s components rotate in harmony. As your timing belt ages it begins to stretch and this stretching will eventually cause the belt to break. This can lead to costly repairs upwards of $3000. USP recommends changing your timing belt and belt tensioner every 70,000 to 90,000 miles depending on your driving habits. This standard timing belt kit includes a new timing belt, tensioner, roller, and hardware.