ARB Air Locker Side Adjuster Nut – 100102SP

The 100102SP side adjuster nut is used to set and adjust carrier bearing preload and differential backlash in ARB Air Locker-equipped differentials.

Located on either the seal side of the locker carrier, this adjuster nut allow precise positioning of the differential centre within the housing, ensuring correct gear mesh and bearing preload. Damaged, worn, or seized adjusters can make setup difficult and may affect differential performance and longevity.

Features:

Genuine ARB replacement part

Used to adjust carrier bearing preload and ring gear backlash

Essential for correct differential setup

Ideal for repairs, rebuilds, and replacement of damaged adjusters

Helps maintain proper gear contact and bearing life

Perfect for replacing worn or damaged adjusters during an Air Locker rebuild or differential setup.