Aisin's OE matched Differential Lock Actuators are designed for efficient, consistent performance and manufactured using only the highest quality materials. With superior OE technology and know-how, Aisin ensures that every differential lock actuator provides perfect OE form, fit, and function. Differential lock actuator engages locking function, changing differential from open to locked configuration. Unit mounts directly to the differential. Ready to install right out of the box - no modifications required. Aisin is a leader in the development and production of high-quality original equipment matched components and systems for the automotive industry.