ACDelco 12609719 GM Original Equipment Drive Belt Tensioner<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Spring-loaded pulley designed to draw tension on the serpentine belt in your vehicle</li><li>GM-recommended replacement part for your GM vehicle’s original factory component</li><li>Offering the quality， reliability， and durability of GM OE</li><li>Manufactured to GM OE specification for fit， form， and function</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51B72A-EDhL.jpg" noproxy>