What is idler

idler arm

Glossary “idler arm” Definition:
Pivoting component that supports the right side of the steering relay rod in much the same manner as the pitman arm supports the left side.

idler gear

Glossary “idler gear” Definition:
1). A gear connecting two other gears in a manner so that they will turn in the same direction. 2). A gear that transmits movement between the drive and the driven gears, but does not affect the speed relationship of those gears.