Solicitation DEPT OF DEFENSE is seeking a service for the Removal and Replacement of one Caterpillar 3406B engine aboard a Manitowoc Model 3950W crane. The crane is pedestal mounted atop the U.S. Army Corps of Engineers Derrick Boat 65 and is currently located at the Pittsburgh Repair Station, Pittsburgh PA. This service is typically used for maintenance and repair of construction, mining, excavating, and highway maintenance equipment.