Nuline Idler/Tensioner Pulley EP256 Ultra-Performance The purpose of idler arms

The purpose of idler arms is to assist the pitman arm by supporting the steering linkage as it moves in the direction controlled by the steering gear

Crank bore: 32

Equivalent to Ryco RTK28 and RTK64

Outside diameter: 146

Adaptor to engine block gasket sold separately TTG79

Nuline Idler/Tensioner Pulley EP256 Ultra-Performance The purpose of idler armsAll engine pulleys incorporate ball bearings that run at very high revolutions relative to engine speed. Increasing belt load and exposure to dirt or moisture accelerate bearing wear. All ball bearings used in Nuline Idler Tensioner Pulleys are from OEM manufacturers and feature C3 rated high speed races, high temperature lubricant and heavy duty silicone seals for maximum service life at high revolutions. Part No.: EP256 Type: Flat Steel ID: 17mm OD: