Washer B4F 10533388C1

International Navistar Washer B4F (Part Number: 10533388C1) is a heavy-duty flat washer designed for use in trucks and industrial applications. Manufactured in the USA, this washer provides reliable load distribution, prevents bolt loosening, and enhances fastening stability under high vibration and stress conditions. It is commonly used in heavy-duty truck assemblies and engine components.