{"product_id":"4b0-407-643-genuine-vw-audi-drive-axle-shoulder-bolt","title":"4B0-407-643 Genuine VW\/Audi Drive Axle Shoulder Bolt","description":"\u003ch2\u003eClamp the original drive axle into its wheel hub\u003c\/h2\u003e\u003cp\u003e4B0-407-643 is the Genuine VW\/Audi shoulder bolt for the specified axle-to-hub connections. It installs through the hub and bearing into the outer drive-axle end, using the original M14 × 1.5 × 73 mm specification.\u003c\/p\u003e\u003cp\u003eThis connection is sensitive to the correct bolt diameter and tightening procedure. The unsuffixed 4B0-407-643 is a different size from the M16 version carrying suffix A; matching only the first nine characters is insufficient.\u003c\/p\u003e\u003ch3\u003eTechnical details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eComplete factory number: 4B0-407-643.\u003c\/li\u003e\n\u003cli\u003eFactory specification: M14 × 1.5 × 73 mm drive axle shoulder bolt.\u003c\/li\u003e\n\u003cli\u003eDesign: black flanged bolt with internal hex drive and threaded shank.\u003c\/li\u003e\n\u003cli\u003eQuantity supplied: one individual axle bolt.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eOne individual bolt is supplied. Axle shaft, wheel hub, bearing and other hardware are separate. Nominal fastener dimensions describe the component and are not packaged shipping dimensions. Renew this bolt when removed as directed by the factory procedure.\u003c\/p\u003e\u003ch3\u003eCommon reasons to replace\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eThe axle or wheel-bearing procedure requires a new outer axle bolt.\u003c\/li\u003e\n\u003cli\u003eThe internal drive or threads are damaged.\u003c\/li\u003e\n\u003cli\u003eThe bolt is corroded or physically damaged.\u003c\/li\u003e\n\u003cli\u003eThe original fastener is missing or an incorrect size has been fitted.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eConfirm the axle's thread size and original bolt before ordering. Inspect the hub, bearing and axle engagement for damage. Do not substitute the M14 bolt into an M16 axle or use it to compensate for damaged threads.\u003c\/p\u003e\u003ch3\u003eVehicle fitment\u003c\/h3\u003e\u003cp\u003eThe table retains the confirmed VIN and engine restrictions. Axle and hub changes within a model year can require a different bolt; compare the original installation.\u003c\/p\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\n\u003ctr\u003e\n\u003ctd\u003eVolkswagen Passat\u003c\/td\u003e\n\u003ctd\u003e1998–2001\u003c\/td\u003e\n\u003ctd\u003e1.8L turbocharged gasoline\u003c\/td\u003e\n\u003ctd\u003eB5 front-wheel-drive sedan or wagon\u003c\/td\u003e\n\u003ctd\u003eOriginal M14 axle-to-hub connection; through VIN 3B-1-049999. Later M16 applications use a different bolt.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi A4\u003c\/td\u003e\n\u003ctd\u003e1997–2000\u003c\/td\u003e\n\u003ctd\u003e1.8L turbocharged gasoline; AEB or ATW\u003c\/td\u003e\n\u003ctd\u003eB5 front-wheel-drive sedan\u003c\/td\u003e\n\u003ctd\u003eAEB\/ATW engine and original M14 axle-to-hub fastener only; verify installed axle and original number.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi S4\u003c\/td\u003e\n\u003ctd\u003e2000–2001\u003c\/td\u003e\n\u003ctd\u003e2.7L twin-turbocharged gasoline V6\u003c\/td\u003e\n\u003ctd\u003eB5 quattro; original M14 hub connection\u003c\/td\u003e\n\u003ctd\u003eThrough VIN 8D-1-050000. From VIN 8D-1-050001 uses the larger M16 bolt in the specified configuration; match original axle and hub.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation guidance\u003c\/h3\u003e\u003cp\u003eFollow the vehicle-specific axle and wheel-bearing procedure, including restrictions on loading or moving the vehicle with the axle connection loose. Use the correct tool, a new specified bolt and the required torque-angle sequence. Do not estimate tightening values.\u003c\/p\u003e\u003cp\u003eComplete the prescribed hub, wheel and driveline checks and road test. Verify that there is no looseness, bearing noise or abnormal vibration.\u003c\/p\u003e\u003ch3\u003eOrdering information\u003c\/h3\u003e\u003cp\u003eOne individual Genuine VW\/Audi 4B0-407-643 axle shoulder bolt, M14 × 1.5 × 73 mm. Confirm original thread size and applicable VIN restriction. Other axle hardware is separate.\u003c\/p\u003e","brand":"Genuine VW\/Audi","offers":[{"title":"Default Title","offer_id":48048357310641,"sku":"4B0-407-643","price":32.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0681\/1379\/3201\/files\/4b0-407-643-genuine-vw-audi-1.jpg?v=1792148063","url":"https:\/\/hstuning.com\/products\/4b0-407-643-genuine-vw-audi-drive-axle-shoulder-bolt","provider":"HS Tuning ","version":"1.0","type":"link"}