The Dana Spicer flat washer, part number 4223138, is a genuine Spicer hardware component used in off-highway axle and transmission assemblies. This washer is sold individually and is cataloged under Spicer transmission applications. If you need help confirming this is the correct washer for your specific assembly, call Pro Gear and Transmission and we can help verify fit before you order.FeaturesGenuine Dana Spicer part number 4223138Flat washer for off-highway axle and transmission applicationsSold individually (each)Cataloged under Spicer transmission hardware