This AUTOACER 4-piece Front Lower Control Arm Bushing Kit is designed for Expedition (2007–2014), F-150 (2009–2014), and Navigator (2007–2014). The kit includes two left-side and two right-side front lower control arm bushings. These components are built as direct replacements, allowing for the removal and pressing in of new bushings instead of replacing the complete control arms. This solution is suitable for vehicle owners looking to restore their vehicle's suspension performance by targeting worn or cracked rubber bushings. Each bushing is constructed using a combination of aluminum, steel, and rubber to maintain structural integrity under load and resist wear from regular use. The bushings are sealed and greasable, supporting smooth operation over extended periods. These are engineered to closely match OEM fit and function. The materials are selected to work under varying road and terrain conditions, supporting consistent ride comfort and suspension stability. Compatible OEM and aftermarket part numbers include EL1Z3079A, EL3Z3079A, EL1Z3078A, EL3Z3078A, K201188, K201189, EL1Z-3078-A, and EL1Z-3079-A. These part numbers support compatibility checks for easier identification during purchase or repair. This kit is a direct fit replacement, offering a press-in solution for the lower control arms on supported and models. Installation should be performed by a qualified mechanic, as the removal and pressing of control arm bushings require specialized equipment to ensure proper fitment. Incorrect installation can lead to premature wear or misalignment of suspension components. After installation, it is necessary to perform a professional wheel alignment to ensure proper handling, tire wear, and steering response. This kit is intended for vehicle owners seeking to maintain original driving dynamics. Replacing aged bushings can support better absorption of road vibrations and a more consistent steering feel. The condition of rubber bushings directly impacts suspension comfort and overall ride quality, especially on rough or uneven roads. AUTOACER provides a 2-year manufacturer's warranty on this product. The brand operates from the United States and offers product support to customers during and after the warranty period. This warranty covers defects in materials or workmanship under normal use and proper installation.