The Eaton ELocker is an electronic, driver-selectable locking differential. A dash-mounted switch toggles between fully open operation for the street and 100% lock for maximum traction on demand. Net-forged internal gears make it strong and dependable, and installation uses a wiring kit (dash switch, relay, solenoid, harness) plus the axle-specific stator and armature hardware. It is built for the Dana 30 front axle in a 27-spline, 3.73 and up fitment.
Specifications
- Type: Electronic selectable locking differential
- Axle: Dana 30 front
- Ring gear diameter: 7.2in / 7.32in
- Axle shaft diameter: 1.16in
- Spline count: 27
- Gear ratio: 3.73 and up
- Actuation: 12V electric, dash-switch selectable
- Part number: 19818-020
Axle Fitment
- Fits the Dana 30 front axle (27-spline, 3.73 and up) found in Chrysler/Dodge trucks and Jeep Cherokee, Wrangler, JK, and JL. Confirm your axle and spline count.
FAQ
Which axle does the 19818-020 ELocker fit?
It fits the Dana 30 front axle in a 27-spline, 3.73 and up configuration.
Which platforms use this Dana 30?
It appears in Chrysler/Dodge trucks and Jeep Cherokee, Wrangler, JK, and JL. Confirm your axle and spline count.
How is the ELocker actuated?
A 12V dash switch electrically locks and unlocks the differential on demand.
What gear ratios does it cover?
This version is built for 3.73 and numerically higher ratios.

