No.AUC10172 Lawn Tractor Idler Pulley for John Deere Z540R Z540RZ Z355R Z535R

OE Number:AUC10172Fitment: for John Deere Z335E ZTrak (w/ 42"Accel Deck) for John Deere Z535R ZTrak (w/ 54"HC Deck) for John Deere ZTrak Z540R, Z540RZ, Z355R, Z535R, Z335M, Z345M, Z540M, Z535M, Z335E, Z525E, Z345R, Z375R, Z355E, S240 Lawn Tractors Specifications Material: Steel Outside Diameter: 15.6cm/6.14in Height: 1.7cm/0.7in Inside Diameter: 3cm/1.2in Package: 1 x Lawn Mower Idler Pulley This is a non-OEM product, accessory only! Features It maintains proper tension on the belt (serpentine belt) to ensuring smooth operation. It guides and redirects the belt around engine components, prevents the belt from rubbing or jumping off pulleys. It reduces belt vibration and wear, absorbs vibration from the spinning belt. No grooves, adopt with robust steel to withstand constant friction, heat, and mechanical stress, high strength to resists warping under tension, handles heat well. Sealed Ball Bearing for smooth rotation, resists dirt/moisture, prolong the service life. Signs of a Failing Idler Pulley: High-pitched squealing or grinding (bad bearing). Belt chirping at startup or acceleration. Visible wobbling when the engine runs. Belt damage (cracks, fraying from misalignment). Installation 1. Disconnect the battery and cool engine. 2. Locate the bad idler pulley, relieve belt tension and slide the serpentine belt off the idler pulley. 3. Remove the center bolt and pull the old idler pulley. 4. Install the new idler pulley and reinstall the serpentine belt properly. 5. Reconnect the battery terminal, start the engine to check no noises or wobbling.