11945-3S512 Drive Belt Idler Pulley for Nissan Frontier 1998-2004 2.4L L4 for Nissan Xterra XE 2000 2001 2002 2003 2004 Serpentine Belt Tensioner Pulley 119453S510/119453S511

<div class="div-os-obd"></div><strong>OE Number:</strong><ul><li>11945-3S512/119453S510/119453S511/119453S512/36725/89036/11944-3S511/11944-3S512</li></ul><strong>Fitment</strong><ul><li>for Nissan Frontier 1998-2004 2.4L L4</li><li>for Nissan Xterra XE 2000-2004 2.4L L4</li><li>for Nissan Frontier Base, SE, XE 1998</li><li>for Nissan Frontier SE, XE 1999</li><li>for Nissan Frontier XE 2000 2001 2004</li><li>for Nissan Frontier Base, XE 2002 2003</li></ul><strong>Specifications</strong><ul><li>Material: Metal</li><li>Package: 1 x &nbsp;Drive Belt Idler Pulley</li><li>This is a non-OEM product, accessory only!</li></ul><strong>Features</strong><ul><li>It maintains proper tension on the accessory drive belt (serpentine belt) to ensuring smooth operation.</li><li>It guides and redirects the belt around engine components, prevents the belt from rubbing or jumping off pulleys.</li><li>It reduces belt vibration and wear, absorbs vibration from the spinning belt.</li><li>Adopt with robust steel to withstand constant friction, heat, and mechanical stress, high strength to resists warping under tension, handles heat well.</li><li>Sealed Ball Bearing for smooth rotation, resists dirt/moisture, prolong the service life.</li></ul><strong>Signs of a Failing Idler Pulley:</strong><ul><li>High-pitched squealing or grinding (bad bearing).</li><li>Belt chirping at startup or acceleration.</li><li>Visible wobbling when the engine runs.</li><li>Belt damage (cracks, fraying from misalignment).</li></ul><strong>Installation</strong><ul><li>1. Disconnect the battery and cool engine.</li><li>2. Locate the bad idler pulley, relieve belt tension and slide the serpentine belt off the idler pulley.</li><li>3. Remove the center bolt and pull the old idler pulley.</li><li>4. Install the new idler pulley and reinstall the serpentine belt properly.</li><li>5. Reconnect the battery terminal, start the engine to check no noises or wobbling.</li></ul><div class="div-os-obd"></div>

• [Fitment] Serpentine Belt Idler Pulley for Nissan Frontier 1998-2004 2.4L L4, for Nissan Xterra XE 2000-2004 2.4L L4, for Nissan Frontier Base, SE, XE 1998, for Nissan Frontier SE, XE 1999, for Nissan Frontier XE 2000 2001 2004, for Nissan Frontier Base, XE 2002 2003. OE Number:11945-3S512/119453S510/119453S511/119453S512/36725/89036/11944-3S511/11944-3S512
• [Function] It Only guides the belt (fixed position, no tension adjustment), It maintains proper tension on the accessory drive belt (serpentine belt) to ensuring smooth operation. It guides and redirects the belt around various engine components, prevents the belt from rubbing or jumping off pulleys. It reduces belt vibration and wear, absorbs vibration from the spinning belt, prolonging belt and component life.
• [Reliable Quality] Drive Belt Tensioner Pulley adopt with robust metal materials to withstand constant friction, heat, and mechanical stress, high strength enough to resists warping under tension, and handles heat well. Sealed Ball Bearing for smooth rotation, resists dirt/moisture, prolong the service life. Please check and replace the idler pulley when met issue like belt damage, belt chirping at startup or acceleration, visible wobbling when the engine runs etc.
• [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. Note: Check tensioner or belt alignment if belt squeals, check bolt if pulley wobbles.
• [Package] Include 1x Belt Idler Pulley. Outside Diameter: 8cm/3.14in, Height: 6.3cm/2.5in, Rod:10cm/3.92in.