{"product_id":"drive-belt-tensioner-pulley-idler-pulley-for-bmw-e46-e39-e36-x5-e53-z4-e85-e86-320i-323i-325i-328i-520i-523i-525i-528i-530i","title":"BMW E36 \/ E46 3 Series, E39 5 Series, E53 X5 \u0026 E85 \/ E86 Z4 Drive Belt Tensioner Pulley \u0026 Idler Pulley Set 1993 - 2008 (Replaces 11287841228 \/ 11281748131)","description":"\u003cp\u003e\nRestore quiet, reliable accessory drive operation on your BMW with this premium drive belt tensioner pulley and idler pulley set, manufactured to OE specifications for direct replacement of the worn factory pulleys. Drive belt pulleys are a critical wear component in the BMW accessory drive system — and when their internal bearings begin to fail, they produce the characteristic screeching or rumbling sound that BMW owners dread, often accompanied by vibration through the engine bay. Left unaddressed, a failed pulley can seize, lock up the accessory belt, and cause catastrophic damage to surrounding components including the radiator, cooling fan, hoses, and engine bay wiring. This complete tensioner and idler pulley set provides a comprehensive solution that restores quiet operation, prevents catastrophic failure, and matches OE quality and durability standards for long-term reliable operation.\n\u003c\/p\u003e\n\n\u003ch6\u003eFeatures:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eDirect OE replacement design – manufactured to factory specifications matching original equipment part numbers 11287841228 and 11281748131 for clean, modification-free installation\u003c\/li\u003e\n\u003cli\u003ePremium metal and plastic construction – matches OE quality and durability standards for long-term reliable operation\u003c\/li\u003e\n\u003cli\u003eEliminates accessory drive noise – replaces worn factory bearings to remove the screeching, rumbling, and friction sounds that develop with pulley aging\u003c\/li\u003e\n\u003cli\u003ePrevents catastrophic engine bay damage – timely pulley replacement avoids the cascading damage caused by seized or broken pulleys to radiators, hoses, fans, and surrounding components\u003c\/li\u003e\n\u003cli\u003eComplete pulley set – includes both tensioner pulley and idler pulley for a comprehensive accessory drive refresh\u003c\/li\u003e\n\u003cli\u003eWide chassis compatibility – fits the entire E36 \/ E46 \/ E39 \/ E53 \/ E85 \/ E86 BMW range from 1993 through 2008\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch6\u003eSpecifications:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eCondition: 100% Brand New\u003c\/li\u003e\n\u003cli\u003eType: Drive Belt Tensioner Pulley \u0026amp; Idler Pulley Set\u003c\/li\u003e\n\u003cli\u003eMaterial: Metal \u0026amp; Plastic Construction\u003c\/li\u003e\n\u003cli\u003eQuantity: 2 pulleys per set (1x Tensioner + 1x Idler)\u003c\/li\u003e\n\u003cli\u003ePosition: Accessory Drive Belt System\u003c\/li\u003e\n\u003cli\u003ePurpose: Direct OE Replacement \/ Preventive Maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch6\u003eOE \/ Replacement Part Numbers:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e11287841228\u003c\/li\u003e\n\u003cli\u003e11281748131\u003c\/li\u003e\n\u003cli\u003e11281748130\u003c\/li\u003e\n\u003cli\u003e11281726343\u003c\/li\u003e\n\u003cli\u003e11281726181\u003c\/li\u003e\n\u003cli\u003e11281730571\u003c\/li\u003e\n\u003cli\u003e11281738061\u003c\/li\u003e\n\u003cli\u003e11281738605\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch6\u003eFitment:\u003c\/h6\u003e\n\u003cp\u003e\u003cstrong\u003eCritical fitment requirements:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydraulic tensioner vehicles only\u003c\/strong\u003e – will NOT fit vehicles equipped with mechanical tensioner systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClockwise-turning power steering pump configurations only\u003c\/strong\u003e – verify your power steering pump rotation direction before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMW 3 Series E36:\u003c\/strong\u003e 320i, 323i, 325i, 328i, M3 3.0, M3 3.2 (1993 – 1998)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMW 3 Series E46:\u003c\/strong\u003e 320i, 323i, 325i, 325xi, 328i, 330i, 330xi (1998 – 2005)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMW 5 Series E39:\u003c\/strong\u003e 520i, 523i, 525i, 528i, 530i (1998 – 2003)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMW X5 E53:\u003c\/strong\u003e 3.0i (2000 – 2006)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMW Z4 E85 \/ E86:\u003c\/strong\u003e 2.2i, 2.5i, 3.0i (2002 – 2008)\u003c\/li\u003e\n\u003cli\u003eConfirm vehicle model, chassis code, engine variant, tensioner type (hydraulic), and power steering pump rotation before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch6\u003eContents:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e1x Drive Belt Tensioner Pulley\u003c\/li\u003e\n\u003cli\u003e1x Drive Belt Idler Pulley\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch6\u003eBenefits:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eEliminates the persistent screeching and rumbling noises that develop as factory pulley bearings wear out – restoring quiet, refined accessory drive operation\u003c\/li\u003e\n\u003cli\u003ePrevents catastrophic accessory drive failure – timely pulley replacement is significantly less expensive than the cascading damage caused by seized or broken pulleys (radiator, fan clutch, hoses, and engine bay components)\u003c\/li\u003e\n\u003cli\u003eOE-grade quality construction matches original equipment durability for long-term reliable operation matching factory service intervals\u003c\/li\u003e\n\u003cli\u003eComplete pulley set provides comprehensive accessory drive refresh – addressing both common pulley failure points simultaneously rather than replacing one at a time\u003c\/li\u003e\n\u003cli\u003eSignificant cost savings compared to BMW dealer pulley replacement parts while maintaining equivalent quality and fitment standards\u003c\/li\u003e\n\u003cli\u003eWide cross-platform compatibility makes this a versatile replacement set for BMW enthusiasts managing multiple chassis or workshops servicing diverse BMW models from the era\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch6\u003eInstallation Notes:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCritical fitment verification required:\u003c\/strong\u003e Confirm your vehicle is equipped with a hydraulic tensioner (NOT a mechanical tensioner) before ordering – mechanical tensioner vehicles will not fit this kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower steering pump rotation verification required:\u003c\/strong\u003e The idler pulley is only compatible with clockwise-turning power steering pump configurations – verify rotation direction before ordering\u003c\/li\u003e\n\u003cli\u003eAllow the engine to fully cool before beginning belt service to avoid burns from hot engine components\u003c\/li\u003e\n\u003cli\u003eInspect the accessory drive belt during pulley replacement – worn or cracked belts should be replaced at the same time to avoid repeat service intervals\u003c\/li\u003e\n\u003cli\u003eInspect the water pump, alternator pulley, and crankshaft pulley during installation – worn components in the same drive system should be addressed simultaneously\u003c\/li\u003e\n\u003cli\u003eProperly tension the accessory drive belt according to factory specifications after pulley installation – improper belt tension causes premature pulley wear\u003c\/li\u003e\n\u003cli\u003eVerify quiet, smooth accessory drive operation after installation – any continued noise indicates additional worn components requiring inspection\u003c\/li\u003e\n\u003cli\u003eProfessional installation strongly recommended unless you have experience with accessory drive system service procedures\u003c\/li\u003e\n\u003cli\u003eIf unsure about compatibility with your specific BMW variant or tensioner type, contact our team with your year, model, chassis code, engine variant, and tensioner configuration before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch6\u003eWarranty:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e12-month standard warranty from date of purchase\u003c\/li\u003e\n\u003cli\u003eContact our support team for assistance with any issues\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K2 Industries","offers":[{"title":"Default Title","offer_id":46015482691818,"sku":"1005009668087006","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0477\/0427\/7142\/files\/Sb5cdc2be73f64a4e95ca7d6cc7180f0fy.webp?v=1777549845","url":"https:\/\/www.k2-industries.com\/en-xk\/products\/drive-belt-tensioner-pulley-idler-pulley-for-bmw-e46-e39-e36-x5-e53-z4-e85-e86-320i-323i-325i-328i-520i-523i-525i-528i-530i","provider":"K2 Industries","version":"1.0","type":"link"}