ASAP Fasteners provides you one click purchasing solutions for part 4-143-020-17 of Textron Lycoming Inc Williamspor Aerospace fasteners, aircraft bearing and mil-spec connector components. Please fill out below form with your desired quantity, your target price and the expected delivery dates for Textron Lycoming Inc Williamspor part 4-143-020-17 of This part is described as Bearing Unit. All fields are necessary which marked by *. Our knowledgeable staff assist you within 15 Minutes for part number 4-143-020-17 quote.