This high-quality Allison Transmission Output Shaft Seal is a must-have for any commercial truck owner. It is specifically designed to fit Allison transmissions and provide a reliable seal for the output shaft. The part number for this seal is 1-23010005 and it is made by Allison, a trusted brand in the industry. This item is not a non-domestic product and is not customized in any way. It is a commercial truck part that is suitable for use in other transmission and drivetrain applications. Don't miss the opportunity to purchase this essential seal for your Allison transmission.