Drive Belt Tensioner with Pulley Assy for BMW 545I 550I 645CI 650I 745LI 750LI 760LI X5 E53 E60 E63 E64 E65, Serpentine Belt Tensioner Idler Pulley Front Engine

Fitmentfor BMWfor Alpina B7 4.4L 2007-2008for X5 4.4L/4.8L 2004-2006for 545i 4.4L 2004-2005for 550i 4.8L 2006-2010for 645Ci 4.4L 2004-2005for 650i 4.8L 2006-2010for 745Li 4.4L 2002-2005for 745i 4.4L 2002-2005for 750Li 4.8L 2006-2008for 750i 4.8L 2006-2008for 760Li 6.0L 2003-2008for 760i 6.0L 2004-2006PositionLocation: FrontPart Number49462,11287542680,89615,A0242A0025,V200338,11287549588,39148,11287505224

• Point 1 — Fitment Coverage 🔧 Comprehensive Vehicle Fitment — Direct replacement for BMW 5-Series (E60/E61): 545i 4.4L (04-05), 550i 4.8L (06-10); 6-Series (E63/E64): 645Ci 4.4L (04-05), 650i 4.8L (06-10); 7-Series (E65/E66): 745Li 4.4L (02-05), 750Li 4.8L (06-08), 760Li 6.0L V12; X5 (E53/E70): 4.4L/4.8L (04-10). Also fits Alpina B7 4.4L 07-08. Verify your vehicle with Year/Model/Engine Code (N62/N73) before purchase.
• ⚙️ Point 2 — Symptom Solution ⚙️ Eliminate Squeaking Noise & Belt Slippage — A failing belt tensioner often causes annoying squeaking or chirping noises from the engine bay, especially during cold starts, followed by belt slippage that leads to dimming lights, weak A/C, and hard steering. Our serpentine belt tensioner restores proper belt tension in seconds, eliminating noise and preventing further accessory drive failures.
• 🛡️ Point 3 — Durability & Materials 🛡️ Heavy-Duty Construction with Premium Sealed Bearing — Built with high-grade steel housing and a premium sealed ball bearing that resists dust, moisture, and heat buildup. The maintenance-free design eliminates the need for lubrication, while the precision-engineered pulley ensures smooth rotation and extended service life compared to worn OEM units.
• 🔩 Point 4 — OE Cross-Reference & Easy Installation 🔩 Direct OE Fitment — No Modifications Required — Matches OEM specifications for a hassle-free bolt-on installation. OE Cross-Reference Numbers: 11287549588, 11287542680, 11287549588, 11287505224. Interchange: 49462, 89615, A0242A0025, V200338, 39148. Professional installation recommended — basic mechanical skills and a 3/8″ drive ratchet are sufficient for DIY replacement.
• ✅ Point 5 — Quality Assurance ✅ Meets or Exceeds OE Standards — 2-Year Warranty — Manufactured under strict quality control to meet or exceed SAE industry standards for belt tensioners. Each unit is 100% tested before shipment to ensure reliable tension output and consistent performance.