COMPATIBILTIY: Fuel Pump Assembly for 2004-2005 for Mercury Mountaineer 4.0L,. PERFECT FIT: Replacement fuel pump designed to match old pump's dimensions and appearance, ensuring a precise fit. FUNCTION: Virtually clean off fuel pulsation for improved drivability and longer life. PERFECT UPGRADE: High-efficiency turbine technology and precision, spin-balanced, polymer-encased armature provides quiet and precise fuel delivery.
