Description:Cat® Boom assembly is a structure component use to tilt and Lift the Attachments. They work as a system for your specific Cat machine and are tested and proven in the world's most severe applications. They give you maximum strength and resistance and result in a lower overall cost, outstanding strength and fatigue life, superior resistance to abrasive wear, and exceptional protection against pin spalling and galling, even in high-load conditions.Application:Consult your owner’s manual or contact your local Cat Dealer for more information.