Eaton ELocker4 30-Spline Locking Differential - Select Toyota 1984-2023 (14221-1)

Fits select 1984-2023 Toyota 4Runner, FJ Cruiser, Land Cruiser, and Tacoma models.

The Eaton ELocker4 (MPN: 14221-1) is an electronic, selectable locking differential designed for drivers requiring immediate traction control. This 30-spline unit allows you to transition from an open differential to 100% locked with the flip of a dash-mounted switch. Using an electromagnetic actuator, the ELocker4 engages precisely to provide equal power to both wheels, making it an essential upgrade for off-road technical climbs and low-traction environments.

Constructed for durability, the ELocker4 features a 4-pinion net-forged gear design that provides superior strength compared to standard cut gears. This unit is designed to function reliably in both forward and reverse directions, ensuring recovery and climbing capability in any orientation. The system remains maintenance-free under normal operating conditions and installs into the factory axle housing.

• 4-pinion net-forged gear design for maximum torque capacity
• Electromagnetic locking mechanism for instantaneous engagement
• Driver-controlled push-button operation for traction on-demand
• Works effectively in both forward and reverse gears
• Includes Eaton NGR locking rocker switch and complete wiring harness
• Manufacturer Part Number: 14221-1