Yukon Gear & Axle Zip Locker

The Yukon Gear & Axle Zip Locker is an air-operated, selectable differential locker (also called an air locker or differential lock assembly). It gives you full open-differential manners on the street and a fully locked axle when you need traction off-road. It is built for rock crawling, trail driving, and other demanding 4x4 use.

Key Features:

• Selectable operation: runs as an open differential until you engage the lock with an air supply
• Air-actuated design: engages and disengages on demand from the driver's seat
• Replaces the factory differential carrier internals so power is sent to both wheels when locked
• Built with hardened, heat-treated components for strength under heavy load
• Engineered by Yukon Gear & Axle, a long-established name in drivetrain upgrades

Zip Locker units are offered for a range of axle models and spline counts. Each one is sold under its own part number, so choose the version that matches your axle. Installing a Zip Locker adds traction and control on loose, slick, or uneven terrain without giving up everyday drivability.