Though most modern vehicles include power windows as standard equipment, some vehicles are still equipped with crank windows from the factory. The crank handle is a mechanical device that can be turned manually to crank the windows up or down. Many window crank handles are made from plastic, and can break over time or due to excess force. When this happens, it may be difficult or impossible to operate your windows until the crank handle is replaced. If you're ready for a new window crank handle, visit O'Reilly Auto Parts. We carry many common failure interior parts to make your repairs simple.