This 4WD actuator directly replaces the original equipment part on specific vehicle applications. It is reverse engineered to reliably restore proper functionality. Product Features:Direct replacement - this 4WD axle actuator directly replaces the original equipment part on specific vehicle years, makes and modelsEffective fix - installation addresses inoperative four-wheel drive caused by failed original actuatorSmart solution - delivers reliable fit and function for competitive priceTrustworthy quality - backed by team of designers and engineers in the United States