Hydraulic pump and motor assembly (Part CTT00001819), used in the hydraulic cab tilt system on Ottawa yard tractors and terminal tractors. It houses both the hydraulic pump and the electric drive motor that supplies pressurized fluid to tilt the operator cab for maintenance access or service. typically near the hydraulic fluid reservoir or main hydraulic circuit. When the operator actuates the cab tilt switch, the electric motor drives the hydraulic pump, producing oil flow and pressure. That pressurized fluid is routed to the cab tilt cylinder, allowing the cab to raise or lower smoothly for engine access and maintenance.