The March Performance 131 Alternator Pulley is a high-performance accessory designed specifically for GM and Ford vehicles. Made of durable aluminum with a 1 groove design and 0.668 bore size, this pulley is manufactured in the United States by March Performance. It is identified by the interchange part number MPP131 and carries the manufacturer part numbers 131A and 131. This pulley is a genuine performance part that ensures a reliable and efficient power transmission system for your vehicle, offering peace of mind when it comes to maintaining optimal engine performance. Exact item is shown. New open box without original packaging. Pulley only, no washer. 2.125 in outside diameter. Item weight 3 oz. Made in USA. No returns if installed. This item is new with opened or damaged packaging. It may or may not be a customer return. It has been inspected and passed quality control to insure the condition described and contents are accurate. It may show minor wear from handling. Please review actual photos as stock photos are not the actual item, our photos are. You will ONLY receive exactly what is shown in photos, regardless of what might have originally been included. Please review our business policies in our store for information regarding returns, shipping and warranties. Most items have 30-day returns along with free fast shipping in 1 business day (see details). Message us anytime. Buy from a trusted 16+ year seller!