{"product_id":"bmw-n54-engine-drive-belt-tensioner-idler-pulley-kit-with-billet-aluminium-power-steering-pulley-for-e82-e88-135i-e90-e91-e92-e93-335i-335xi-2007-2010","title":"BMW N54 Engine Drive Belt Tensioner \u0026 Idler Pulley Kit with Billet Aluminium Power Steering Pulley for E82 \/ E88 135i \u0026 E90 \/ E91 \/ E92 \/ E93 335i \/ 335xi 2007 - 2010","description":"\u003cp\u003e\nAddress the most critical accessory drive failure on your BMW N54 engine with this comprehensive drive belt tensioner and pulley kit, featuring an upgraded billet aluminium power steering pulley that permanently solves one of the N54's most well-known and dangerous failure modes. The factory plastic power steering pulley on N54-equipped 135i, 335i, and 335xi models is notorious for cracking and breaking apart — when this happens, the pulley can strike the front subframe, the serpentine belt comes off, and worst of all, the broken belt can be sucked into the engine timing cover where it causes catastrophic timing chain damage. This complete maintenance kit replaces all the high-wear accessory drive components (serpentine belt, tensioner assembly, both idler pulleys) and includes the critical billet aluminium power steering pulley upgrade that prevents the entire failure cascade from ever occurring.\n\u003c\/p\u003e\n\n\u003ch6\u003eFeatures:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eComplete N54 accessory drive maintenance kit – addresses all critical wear components in a single comprehensive package\u003c\/li\u003e\n\u003cli\u003eBillet aluminium power steering pulley upgrade – permanently replaces the failure-prone factory plastic pulley with rigid aluminium construction that will not crack, shatter, or fail under sustained load\u003c\/li\u003e\n\u003cli\u003ePremium serpentine drive belt – manufactured to OE specifications for proper power transfer to the alternator, power steering pump, and A\/C compressor\u003c\/li\u003e\n\u003cli\u003eDrive belt tensioner assembly – maintains correct belt tension across all driving conditions and engine RPM ranges\u003c\/li\u003e\n\u003cli\u003eDual idler pulleys included (80mm and 90mm) – complete idler set for full accessory drive system refresh\u003c\/li\u003e\n\u003cli\u003eDirect OE replacement design – matches factory specifications for clean, modification-free installation\u003c\/li\u003e\n\u003cli\u003eEngineered specifically for the BMW N54 twin-turbo engine – addresses the platform-specific failure modes common to high-performance N54 applications\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: N54 Drive Belt Tensioner \u0026amp; Pulley Kit with Power Steering Pulley Upgrade\u003c\/li\u003e\n\u003cli\u003ePower Steering Pulley Material: Billet Aluminium (Upgrade)\u003c\/li\u003e\n\u003cli\u003eQuantity: 5-piece complete kit\u003c\/li\u003e\n\u003cli\u003ePosition: Accessory Drive Belt System \u0026amp; Power Steering Pulley\u003c\/li\u003e\n\u003cli\u003ePurpose: Performance Replacement \/ Failure Prevention \/ Maintenance Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch6\u003eOE \/ Replacement Part Numbers:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Steering Pulley:\u003c\/strong\u003e 32427553955\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDrive Belt \u0026amp; Tensioner Components:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e11 28 7 628 652 \/ 11287628652\u003c\/li\u003e\n\u003cli\u003e11 28 7 563 927 \/ 11287563927\u003c\/li\u003e\n\u003cli\u003e11 28 7 556 251 \/ 11287556251\u003c\/li\u003e\n\u003cli\u003e11 28 7 557 851 \/ 11287557851\u003c\/li\u003e\n\u003cli\u003e11 28 7 568 247 \/ 11287568247\u003c\/li\u003e\n\u003cli\u003e11 28 7 557 858 \/ 11287557858\u003c\/li\u003e\n\u003cli\u003e7PK1855 (Serpentine Belt)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch6\u003eFitment:\u003c\/h6\u003e\n\u003cp\u003e\u003cstrong\u003eBMW N54 twin-turbo engine only. Verify your engine code before ordering.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBMW E82 135i N54 (2008 – 2010)\u003c\/li\u003e\n\u003cli\u003eBMW E88 135i N54 (2008 – 2010)\u003c\/li\u003e\n\u003cli\u003eBMW E90 335i N54 Sedan (2007 – 2010)\u003c\/li\u003e\n\u003cli\u003eBMW E91 335i N54 Touring (2007 – 2010)\u003c\/li\u003e\n\u003cli\u003eBMW E92 335i N54 Coupe (2007 – 2010)\u003c\/li\u003e\n\u003cli\u003eBMW E93 335i N54 Convertible (2007 – 2010)\u003c\/li\u003e\n\u003cli\u003eBMW E90 \/ E91 \/ E92 \/ E93 335xi N54 (2007 – 2010)\u003c\/li\u003e\n\u003cli\u003eCompatible with N54 twin-turbo engines only – not compatible with N55 single-turbo, N52 naturally aspirated, or other engine variants\u003c\/li\u003e\n\u003cli\u003eConfirm engine code is N54 before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch6\u003eContents:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e1x Serpentine Drive Belt\u003c\/li\u003e\n\u003cli\u003e1x Accessory Drive Belt Tensioner Assembly\u003c\/li\u003e\n\u003cli\u003e1x Accessory Drive Belt Idler Pulley (80mm)\u003c\/li\u003e\n\u003cli\u003e1x Accessory Drive Belt Idler Pulley (90mm)\u003c\/li\u003e\n\u003cli\u003e1x Billet Aluminium Power Steering Pulley\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch6\u003eTightening Torque Specifications:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eDrive Belt Tensioner Bolt: 40 Nm (30 ft-lbs)\u003c\/li\u003e\n\u003cli\u003eDrive Belt Idler Pulley 90mm Bolt: 38 Nm (~28 ft-lbs)\u003c\/li\u003e\n\u003cli\u003eDrive Belt Idler Pulley 80mm Bolt: 38 Nm (~28 ft-lbs)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch6\u003eBenefits:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003ePermanently prevents the catastrophic N54 power steering pulley failure mode – billet aluminium construction will not crack, shatter, or break apart like the factory plastic pulley, eliminating the cascade of damage that occurs when the belt comes off and gets sucked into the timing cover\u003c\/li\u003e\n\u003cli\u003eProtects against catastrophic engine damage – timing chain damage from a sucked-in serpentine belt is one of the most expensive N54 repair scenarios. This kit eliminates the root cause\u003c\/li\u003e\n\u003cli\u003eComplete accessory drive refresh in a single kit – addresses all wear components simultaneously rather than replacing them piecemeal as failures occur\u003c\/li\u003e\n\u003cli\u003eRestores quiet, reliable accessory drive operation – eliminates the screeching, rumbling, and friction noises that develop as factory pulleys age\u003c\/li\u003e\n\u003cli\u003eMaintains all critical accessory functions – proper belt tension and pulley operation ensures reliable alternator charging, power steering assist, and A\/C operation\u003c\/li\u003e\n\u003cli\u003eSignificant cost savings compared to replacing components individually as they fail – complete kit pricing typically beats summed individual part costs\u003c\/li\u003e\n\u003cli\u003eSignificant cost savings compared to BMW dealer N54 maintenance pricing while delivering equivalent quality and the critical billet aluminium pulley upgrade\u003c\/li\u003e\n\u003cli\u003eParticularly valuable for high-mileage N54 owners who have not yet replaced these components – proactive replacement prevents stranding and catastrophic damage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch6\u003eInstallation Notes:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCritical maintenance product:\u003c\/strong\u003e The N54 power steering pulley failure is one of the most well-documented and dangerous failure modes in the entire BMW platform. If your factory plastic pulley has not been replaced, install this kit immediately to prevent catastrophic damage\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\u003eDocument the original belt routing before removal – take photos of the serpentine belt path before removing for accurate reinstallation\u003c\/li\u003e\n\u003cli\u003eInspect the alternator pulley, water pump pulley, and crankshaft pulley during installation – worn components in the same drive system should be addressed simultaneously\u003c\/li\u003e\n\u003cli\u003eUse the specified tightening torque values for each component – over-tightening can damage threads or distort components, under-tightening can result in component loosening and failure\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\u003eInspect the front timing cover area for any signs of previous belt damage – if your factory pulley has already failed, additional repair may be required\u003c\/li\u003e\n\u003cli\u003eProfessional installation strongly recommended unless you have experience with BMW N54 accessory drive system service procedures\u003c\/li\u003e\n\u003cli\u003eIf unsure about compatibility with your specific BMW variant or engine code, contact our team with your year, model, and engine code (must be N54) 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":48610676670647,"sku":"1005010258446938","price":309.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/milkymotorsports.com\/products\/bmw-n54-engine-drive-belt-tensioner-idler-pulley-kit-with-billet-aluminium-power-steering-pulley-for-e82-e88-135i-e90-e91-e92-e93-335i-335xi-2007-2010","provider":"Milky Motorsports","version":"1.0","type":"link"}