Sadler Power Train stocks differential lockers including air-operated lockers, electric lockers, and mechanical locking differentials for maximum traction in off-road and severe-duty applications. Our inventory features ARB, Eaton, and other premium locker manufacturers with same-day availability from our Iowa locations. Differential lockers provide 100% power to both wheels, eliminating wheel spin and maximizing traction in challenging conditions. Our technical team helps you select appropriate locker types, installation requirements, and activation systems for your specific application. We provide lockers for commercial trucks, emergency vehicles, and specialty equipment requiring maximum traction capability. With real-time inventory at our Cedar Rapids, Davenport, Dubuque, and Waterloo locations, Sadler Power Train delivers quality differential lockers with the expert support and fast shipping that off-road and vocational vehicle operators demand.