{"product_id":"n-911-439-01-genuine-vw-audi-crankshaft-vibration-damper-bolt-m8-x-16","title":"N-911-439-01 Genuine VW\/Audi Crankshaft Vibration Damper Bolt - M8 x 16","description":"\u003cp\u003e\u003cstrong\u003eGenuine VW\/Audi crankshaft vibration damper bolt, part number N-911-439-01.\u003c\/strong\u003e This original fastener retains the crankshaft pulley\/vibration damper at its assigned peripheral mounting position. One bolt is supplied; the confirmed Golf R arrangement uses six.\u003c\/p\u003e\u003ch3\u003eTechnical details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOriginal number: N-911-439-01 \/ N91143901.\u003c\/li\u003e\n\u003cli\u003ePublished nominal size: M8 x 16.\u003c\/li\u003e\n\u003cli\u003eSocket head with internal multipoint drive, as pictured.\u003c\/li\u003e\n\u003cli\u003eApplication: crankshaft vibration damper retaining hardware.\u003c\/li\u003e\n\u003cli\u003eQuantity supplied: one bolt. Damper and remaining hardware are separate.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe vibration damper is retained by multiple fasteners around the center crankshaft connection. This bolt belongs to that retaining pattern. It is separate from the large center crankshaft bolt and must not be used as a substitute for that fastener.\u003c\/p\u003e\u003cp\u003eThe exact length, head and mounting position matter for correct damper seating. Other pulley or timing-related fasteners may look similar while requiring different hardware. Match the original number and engine arrangement before ordering.\u003c\/p\u003e\u003ch3\u003eCommon reasons to replace\u003c\/h3\u003e\u003cp\u003eRenew the damper retaining bolts when required by the factory procedure during pulley removal or related timing-belt access. The published Golf R repair procedure calls for new vibration damper mounting bolts during reassembly.\u003c\/p\u003e\u003cp\u003eReplace any missing fastener or one with stripped threads, a rounded internal drive, corrosion or deformation that prevents controlled installation. Prior repairs can leave mismatched hardware in the six-bolt pattern; inspect every position rather than replacing only the most visibly damaged bolt.\u003c\/p\u003e\u003cp\u003ePulley movement, abnormal vibration or noise requires diagnosis of the damper and its complete connection. A new bolt cannot repair a damaged damper, incorrectly seated pulley, damaged crankshaft components or stripped mating threads. Correct the diagnosed cause before reassembly.\u003c\/p\u003e\u003ch3\u003eInstallation and service notes\u003c\/h3\u003e\u003cp\u003eUse the factory procedure for the exact engine and crankshaft pulley arrangement. Damper removal can be part of timing-belt service, so observe the required engine positioning and timing checks before disturbing the assembly.\u003c\/p\u003e\u003cp\u003eIdentify the peripheral retaining bolts separately from the center crankshaft bolt. The factory procedure specifies holding the center connection while removing the damper retaining hardware. Use the prescribed holding method and tools; do not improvise by loading unrelated engine components.\u003c\/p\u003e\u003cp\u003eInspect the mounting surfaces, bolt holes and damper before fitting it. Seat the assembly correctly and start the assigned bolts by hand in undamaged threads. Do not use a bolt to pull a misaligned damper into place or overcome resistance from an incorrectly located component.\u003c\/p\u003e\u003cp\u003eEngage the correct multipoint tool fully in the socket and follow the specified tightening sequence. Observe the engine-specific thread preparation, tightening and renewal requirements. A generic M8 specification does not replace the repair procedure for this attachment.\u003c\/p\u003e\u003cp\u003eCheck that the complete retaining pattern has the correct hardware and that all disturbed timing covers, brackets and belt-drive components are restored as prescribed. Complete the required timing and operating checks before returning the vehicle to service.\u003c\/p\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eVehicle\u003c\/th\u003e\n\u003cth\u003eModel years\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003cth\u003eApplication restrictions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003eVolkswagen Golf R\u003c\/td\u003e\n\u003ctd\u003e2012–2013\u003c\/td\u003e\n\u003ctd\u003e2.0L turbocharged FSI gasoline, CRZA\u003c\/td\u003e\n\u003ctd\u003eMk6 hatchback, 4Motion; 6-speed manual\u003c\/td\u003e\n\u003ctd\u003eOriginal crankshaft vibration damper attachment requiring N91143901. Six bolts are used at the damper; this listing supplies one. Not the large center crankshaft bolt.\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cem\u003eConfirm N91143901 at the crankshaft vibration damper retaining pattern. Order the required quantity separately; one bolt supplied.\u003c\/em\u003e\u003c\/p\u003e","brand":"Genuine VW\/Audi","offers":[{"title":"Default Title","offer_id":48012030116017,"sku":"N-911-439-01","price":4.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0681\/1379\/3201\/files\/n-911-439-01-genuine-vw-audi-1.jpg?v=1791473928","url":"https:\/\/hstuning.com\/products\/n-911-439-01-genuine-vw-audi-crankshaft-vibration-damper-bolt-m8-x-16","provider":"HS Tuning ","version":"1.0","type":"link"}