FIT Ford F-150 2004-2008, Expedition 2003-2006, Lincoln Navigator Mark LT, Power Steering Pump with Pulley, V8 4.6L 5.4L, Hydraulic Assist Steering Pump, Replaces 20-312P1 6L3Z3A674B 7L3Z3A674C

Vehicle Compatibility & Engine Matrix: 2004-2008 Ford F-150 (V8 4.6L/5.4L) Power Steering Pump 2003-2006 Ford Expedition (V8 4.6L/5.4L) Power Steering Pump 2003-2006 Lincoln Navigator (V8 5.4L) Power Steering Pump 2006-2008 Lincoln Mark LT (V8 5.4L) Power Steering PumpHardware Physical Specifications: - Housing Material: Precision Cast Aluminum - Pulley Material: Heavy-Duty Pressed Steel - Pulley Configuration: Pre-installed for Direct Integration - Outlet Thread Size: M16 x 1.5 (Match Factory High-Pressure Hose)Technical Restoration Characteristics: This hydraulic assist pump addresses symptoms such as heavy steering, erratic assist, or mechanical whining during maneuvers. By restoring the precise volumetric flow and pressure curves specified by the OE manufacturer, it ensures the steering gear receives consistent fluid energy throughout the entire RPM range.Mandatory Installation Advisory: To prevent premature bearing wear, the power steering system must be fully flushed with fresh ATF or specified fluid before installing this unit. Air bleeding is required after installation—rotate the steering wheel lock-to-lock several times while the front wheels are off the ground. Do not over-tighten the high-pressure line fitting to avoid thread deformation.Cross-Reference OE List: 20-312P1, 6L3Z3A674B, 7L3Z3A674C, 7L3Z3A674A, N7120122A1, 2L7Z3A674CARM, 5L3Z3A674AA, 5L3Z3A674B

• FIT Ford F-150 (2004-2008), Expedition (2003-2006); FIT Lincoln Navigator (2003-2006), Mark LT (2006-2008); Specifically engineered for V8 4.6L and 5.4L SOHC engines; Precision-aligned for 4WD and 2WD full-size truck platforms.
• Power Steering Pump with Pulley and Hydraulic Assist Steering Pump Assembly; Features a factory-pressed steel pulley and high-strength cast aluminum housing; Designed to match original hydraulic pressure and flow rate specifications for consistent steering feedback.
• Addresses excessive steering effort and maintains low-vibration operation; Engineered to resolve hydraulic groan and fluid bypass issues; Restores factory-specified pressure to the steering rack or gear box for stable directional control.
• Internals feature high-velocity sealed bearings and pressure-calibrated flow valves; Every pump undergoes structural stress testing and high-temperature fluid endurance checks to ensure long-term housing integrity; Treated surface for environmental exposure endurance.
• Internals feature high-velocity sealed bearings and pressure-calibrated flow valves; Every pump undergoes structural stress testing and high-temperature fluid endurance checks to ensure long-term housing integrity; Treated surface for environmental exposure endurance.