{"product_id":"n-020-823-1-genuine-vw-audi-egr-pipe-compression-ring","title":"N-020-823-1 Genuine VW\/Audi EGR Pipe Compression Ring","description":"\u003ch2\u003eFactory compression ring for the assigned EGR pipe union\u003c\/h2\u003e\u003cp\u003eN-020-823-1 is the Genuine VW\/Audi compression ring, also cataloged as a die ring, used in the specified exhaust-gas-recirculation pipe connection. Its shaped profile works with the matching union nut and receiving fitting.\u003c\/p\u003e\u003cp\u003eThe ring is part of the complete pipe union sealing arrangement. Replacing it during the appropriate repair restores the specified sealing component, but the pipe end and mating receiver must also be sound for the joint to seal correctly.\u003c\/p\u003e\u003ch3\u003eTechnical details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eComplete factory number: N-020-823-1.\u003c\/li\u003e\n\u003cli\u003eFactory specification: Factory die-ring designation 12.\u003c\/li\u003e\n\u003cli\u003eDesign: formed compression ring for the matching EGR pipe union.\u003c\/li\u003e\n\u003cli\u003eQuantity supplied: one individual compression ring.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe catalog designation must be matched to the complete factory number and original pipe fitting. This is not a flat flange gasket or an elastomer O-ring, and it should not be substituted solely by appearance.\u003c\/p\u003e\u003ch3\u003eCommon reasons to replace\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eThe original ring is damaged or deformed.\u003c\/li\u003e\n\u003cli\u003eLeakage has been traced to the assigned EGR pipe union.\u003c\/li\u003e\n\u003cli\u003eThe pipe connection has been opened and the procedure requires a new ring.\u003c\/li\u003e\n\u003cli\u003eThe original ring is missing after disassembly.\u003c\/li\u003e\n\u003cli\u003eA previous repair used an incorrect sealing component.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eInspect the pipe end, union nut and receiving fitting for cracks, scoring and distortion. A new ring cannot correct a damaged pipe or receiver. Diagnose the source of an emissions-system fault before replacing components.\u003c\/p\u003e\u003ch3\u003eVehicle fitment\u003c\/h3\u003e\u003cp\u003eThe table identifies confirmed original EGR pipe-union applications. Match the installed pipe arrangement and complete part number.\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\u003eAudi V8\u003c\/td\u003e\n\u003ctd\u003e1990\u003c\/td\u003e\n\u003ctd\u003e3.6L gasoline V8\u003c\/td\u003e\n\u003ctd\u003eD1 sedan; quattro; Original EGR connecting-pipe union\u003c\/td\u003e\n\u003ctd\u003eOriginal N0208231 compression-ring connection only; match the pipe and union fittings.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi V8\u003c\/td\u003e\n\u003ctd\u003e1993–1994\u003c\/td\u003e\n\u003ctd\u003e4.2L gasoline V8\u003c\/td\u003e\n\u003ctd\u003eD1 sedan; quattro; Original EGR connecting-pipe union\u003c\/td\u003e\n\u003ctd\u003eOriginal N0208231 compression-ring connection only; match the pipe and union fittings.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi 90\u003c\/td\u003e\n\u003ctd\u003e1994\u003c\/td\u003e\n\u003ctd\u003e2.8L gasoline V6\u003c\/td\u003e\n\u003ctd\u003eB4 sedan; quattro; Original EGR connecting-pipe union\u003c\/td\u003e\n\u003ctd\u003eOriginal N0208231 compression-ring connection only; match the pipe and union fittings.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi 100\u003c\/td\u003e\n\u003ctd\u003e1991\u003c\/td\u003e\n\u003ctd\u003e2.3L gasoline I5\u003c\/td\u003e\n\u003ctd\u003eC3 sedan; FWD or quattro; Original EGR connecting-pipe union\u003c\/td\u003e\n\u003ctd\u003eOriginal N0208231 compression-ring connection only; match the pipe and union fittings.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi 100\u003c\/td\u003e\n\u003ctd\u003e1992–1993\u003c\/td\u003e\n\u003ctd\u003e2.8L gasoline V6\u003c\/td\u003e\n\u003ctd\u003eC4 sedan; front-wheel drive; Original EGR connecting-pipe union\u003c\/td\u003e\n\u003ctd\u003eOriginal N0208231 compression-ring connection only; match the pipe and union fittings.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi Coupe quattro\u003c\/td\u003e\n\u003ctd\u003e1990–1991\u003c\/td\u003e\n\u003ctd\u003e2.3L 20-valve gasoline I5\u003c\/td\u003e\n\u003ctd\u003eB3 Coupe; quattro; Original EGR connecting-pipe union\u003c\/td\u003e\n\u003ctd\u003eOriginal N0208231 compression-ring connection only; match the pipe and union fittings.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation guidance\u003c\/h3\u003e\u003cp\u003eWork on the cooled system and follow the factory EGR pipe procedure. Prepare and inspect the mating components, position the new ring correctly and start the union nut by hand to avoid cross-threading.\u003c\/p\u003e\u003cp\u003eTighten to the prescribed specification without forcing a misaligned pipe. Inspect the repaired connection for leakage and complete the required system checks before returning the vehicle to service.\u003c\/p\u003e\u003ch3\u003eOrdering information\u003c\/h3\u003e\u003cp\u003eSupplied individually as one genuine compression ring. EGR valve, connecting pipe, union nut and other seals are separate. Confirm the original union position and quantity required.\u003c\/p\u003e","brand":"Genuine VW\/Audi","offers":[{"title":"Default Title","offer_id":48047718564017,"sku":"N-020-823-1","price":6.42,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0681\/1379\/3201\/files\/n-020-823-1-genuine-vw-audi-1.jpg?v=1792137555","url":"https:\/\/hstuning.com\/products\/n-020-823-1-genuine-vw-audi-egr-pipe-compression-ring","provider":"HS Tuning ","version":"1.0","type":"link"}