<h3>About this item</h3><ul> <li>ITEM Fitment : 120AMP Alternator for Chevrolet for Venture 2002-2005,for Oldsmobile for Silhouette 2002-2004,for Pontiac for Montana 2002 2003 2004 2005</li> <li>SPECIFICATIONS : Voltage: 12V; Amperage: 120A; Rotation: CW(Clockwise); Regulator: IR ; Fan: IF; Grooves: 6-Groove Pulley.Please confirm the following MUST MATCH your vehicle before purchase: Year, Make, Model, Trim, Engine (size &amp; cylinder count), and rated amperage (equal to or higher than original). Also verify pulley groove count and connector plug type match your original unit. Thanks!</li> <li>OEM PART MUNBER : 13943 334-1467 AVA0007 10317648 10440636 2650011B 2650017A SG12S056 SG12S071 SG12S074</li> <li>STABLE AND EFFICIENT:Automotive Replacement Alternators are computer tested for voltage stability, terminal function, and circuit board integrity.Engineering enhancements to internal components give an efficient unit for your vehicle to ensure stable voltage output.</li> <li>CONFIRM FIT：Before purchasing, enter your Year, Make, Model, and Trim into the Amazon Garage tool to confirm fit. Then check the "Amazon Confirmed Fit" bar at the top of this page—if you see a blue circle with an "i", hover over it for important fit notes. Must-match specs for the High Output Alternator include: Engine (size &amp; cylinders), rated amperage (equal or higher than original), pulley groove count, and connector plug type</li> </ul>