OE Solutions™ Locking Hub (917-502) by Dorman®. Dorman’s Locking Hub is manufactured for affordability and convenience. The high-quality materials ensure long-lasting durability for year after year of service. Directly compatible and built to last, this premium actuator component is right what you need to restore your 4WD functionality to superior condition. It will help bring back your vehicle’s capability to drive the front wheels when you need them most. Made to exact specification for fit, form, and function, this reliable 4WD actuator will engage correctly your front wheels on the difficult terrain and disengage when you don’t need them.