{"product_id":"n-904-956-04-genuine-vw-audi-transmission-to-engine-bolt-m12-x-90","title":"N-904-956-04 Genuine VW\/Audi Transmission to Engine Bolt - M12 x 90","description":"\u003cp\u003e\u003cstrong\u003eGenuine VW\/Audi transmission-to-engine bolt, part number N-904-956-04.\u003c\/strong\u003e This original M12 x 90 fastener is cataloged for a specified transmission-case-to-engine attachment on the B5 S4 manual-transmission application below. Confirm the assigned mounting position and original bolt number before ordering.\u003c\/p\u003e\u003ch3\u003eTechnical details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOriginal part number: N-904-956-04 \/ N90495604.\u003c\/li\u003e\n\u003cli\u003ePublished nominal size: M12 x 90.\u003c\/li\u003e\n\u003cli\u003eExternal hex head with a shoulder beneath the head.\u003c\/li\u003e\n\u003cli\u003eOne bolt supplied. Transmission, mounting brackets, sleeves and remaining hardware are separate.\u003c\/li\u003e\n\u003cli\u003eThe confirmed B5 S4 profiles below apply to the manual transmission.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe transmission housing must remain correctly aligned and attached to the engine. Each assigned mounting bolt has a specific length and head arrangement for its position. This M12 x 90 bolt is separate from the transmission mount-to-bracket hardware and other engine-to-transmission fasteners of different lengths.\u003c\/p\u003e\u003cp\u003eA matching thread diameter does not establish interchangeability. Identify the actual bolt in the factory attachment arrangement, especially when servicing an assembly with several visually similar fasteners.\u003c\/p\u003e\u003ch3\u003eCommon reasons to replace\u003c\/h3\u003e\u003cp\u003eReplace missing hardware, damaged threads, a rounded hex head, visible deformation or corrosion that affects reliable installation. Renew the fastener after removal when the relevant factory procedure requires new hardware.\u003c\/p\u003e\u003cp\u003eTransmission removal, clutch service or other work at the engine-to-transmission connection can reveal prior tool damage or an incorrect substitute bolt. Inspect the mating threaded hole, housing contact area and remaining attachment hardware before reassembly.\u003c\/p\u003e\u003cp\u003eA loose attachment requires checking the complete connection, housing alignment and condition of the mating components. A new bolt cannot repair a cracked housing, stripped threaded hole or damaged alignment feature. Diagnose the cause before completing the repair.\u003c\/p\u003e\u003ch3\u003eInstallation and service notes\u003c\/h3\u003e\u003cp\u003eFollow the repair procedure for the exact engine and manual transmission. Support and align the components as prescribed before installing attachment hardware; do not use the bolt to pull an incorrectly aligned transmission into place.\u003c\/p\u003e\u003cp\u003eConfirm the original number, assigned mounting position and correct length. Prepare the mating surfaces and threaded hole as directed, and install any separate alignment features or sleeves specified for the actual assembly.\u003c\/p\u003e\u003cp\u003eStart the bolt by hand in undamaged threads. Use the correct hex socket and follow the prescribed sequence for the complete engine-to-transmission attachment.\u003c\/p\u003e\u003cp\u003eUse the tightening specification for this position and assembly. Do not infer torque from the M12 x 90 designation or transfer a specification from a transmission mount bolt. Follow any required additional angle, thread treatment and fastener replacement instruction.\u003c\/p\u003e\u003cp\u003eIf the bolt binds or does not seat normally, check component alignment, threaded-hole condition and hardware selection before proceeding. Inspect the finished connection and complete the service checks required by the repair procedure.\u003c\/p\u003e\u003cp\u003eThis listing contains one original bolt. It does not provide a complete transmission attachment kit; other positions may require different hardware.\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\n\u003ctr\u003e\n\u003ctd\u003eAudi S4\u003c\/td\u003e\n\u003ctd\u003e2000–2002\u003c\/td\u003e\n\u003ctd\u003e2.7L twin-turbocharged gasoline V6, APB\u003c\/td\u003e\n\u003ctd\u003eB5 sedan, quattro; 6-speed manual\u003c\/td\u003e\n\u003ctd\u003eSpecified transmission-case-to-engine M12 x 90 attachment bolt. Confirm original N90495604 at its assigned position; other bellhousing bolt lengths differ. Confirmed manual-transmission profile.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi S4 Avant\u003c\/td\u003e\n\u003ctd\u003e2001–2002\u003c\/td\u003e\n\u003ctd\u003e2.7L twin-turbocharged gasoline V6, APB\u003c\/td\u003e\n\u003ctd\u003eB5 wagon, quattro; 6-speed manual\u003c\/td\u003e\n\u003ctd\u003eSpecified transmission-case-to-engine M12 x 90 attachment bolt. Confirm original N90495604 at its assigned position; other bellhousing bolt lengths differ. Confirmed manual-transmission profile.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cem\u003eConfirm the original bolt number and assigned transmission-to-engine position before ordering. One bolt supplied.\u003c\/em\u003e\u003c\/p\u003e","brand":"Genuine VW\/Audi","offers":[{"title":"Default Title","offer_id":48008294400177,"sku":"N-904-956-04","price":14.88,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0681\/1379\/3201\/files\/n-904-956-04-genuine-vw-audi-1.jpg?v=1791334168","url":"https:\/\/hstuning.com\/products\/n-904-956-04-genuine-vw-audi-transmission-to-engine-bolt-m12-x-90","provider":"HS Tuning ","version":"1.0","type":"link"}