Alternator Fits 03-04 CTS 3783886 This part requires VIN (Vehicle Identification Number) verification prior to shipping. Please send VIN prior to purchase, or include in your purchase notes. If not, VIN will be requested after purchase, prior to shipping the order. Without VIN verification, orders are subject to seller cancellation. If you have any questions about this part, or any other parts from this vehicle, please click HERE to send us a message. We answer all questions promptly during regular business hours. Monday through Friday 7am-5pm Central Time. Donor Vehicle Information Model: CTS Year: 2003 Mileage: 0 Stock Number: 18N150 Specific Part Notes: 3.2L Explanation of damage codes in part notes: - Part Fitment Information This part will fit these makes and models with these options CTS 03 CTS 04 2.6L CTS 04 3.2L If you do not see your vehicle in this list, please click HERE to send us a message so before buying so we can verify if it will fit your vehicle. - Our Promise Our Promise is that you are completely satisfied with every part you buy from Counselman Auto Recycling If you have a problem with the part, changed your mind or the part does not fit, simply let us know. If you need help with how to return an item, send us a message. We are here to help. - Shipping Information This part willl ship with Fedex or USPS with live tracking information. The tracking number will be posted to and you can find it in your item purchase history.