{"product_id":"5q0-121-087-b-genuine-vw-audi-coolant-hose-t-piece-connector","title":"5Q0-121-087-B Genuine VW\/Audi Coolant Hose T-Piece Connector","description":"\u003ch2\u003eGenuine VW\/Audi Coolant Hose T-Piece Connector\u003c\/h2\u003e\u003cp\u003e5Q0-121-087-B is the genuine branched connector used in the assigned engine coolant-hose arrangement. Its molded branches join the specified hose connections while preserving the original routing and retention pattern. It is identified in the factory catalog as a T-piece or Y-piece.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOne individual coolant connector is supplied per purchased unit\u003c\/strong\u003e, as shown in the original photograph. This is the bare connector, not a complete coolant-hose assembly. The separate hoses, sealing rings, retaining clips, clamps and mounting hardware must be selected for the original vehicle connection.\u003c\/p\u003e\u003ch3\u003eTechnical details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM number:\u003c\/strong\u003e 5Q0-121-087-B \/ 5Q0121087B.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent:\u003c\/strong\u003e Branched coolant-hose connector.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalog names:\u003c\/strong\u003e T-piece, Y-piece and coolant hose connector.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Molded multi-branch fitting with original hose-end seating and retention profiles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e One connector per purchased unit.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCoolant branches with similar shapes can have different hose diameters, connector profiles and angles. Match the full part number and all mating hose ends before ordering. A nearby connector or a later factory revision must be checked against its own application.\u003c\/p\u003e\u003ch3\u003eCommon reasons to replace\u003c\/h3\u003e\u003cp\u003eReplace the connector if its body is cracked, a hose seat is damaged, the retaining profile is broken or it no longer supports a sound connection. Age, heat cycling and damage during hose removal can contribute to deterioration of a molded coolant fitting.\u003c\/p\u003e\u003cp\u003eCoolant residue, wetness at a branch connection or repeated loss of coolant requires inspection of the fitting, hoses and seals. A damaged hose, worn sealing ring, broken retaining clip or a leak elsewhere in the system requires its own correction. A new connector alone does not repair a defective water pump, thermostat or radiator.\u003c\/p\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThe table identifies confirmed engine and body applications with the original connector arrangement. Match the installed hose routing and connector assignment before ordering.\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 Golf\u003c\/td\u003e\n\u003ctd\u003e2015–2018\u003c\/td\u003e\n\u003ctd\u003e1.8L turbo TSI four-cylinder\u003c\/td\u003e\n\u003ctd\u003eMk7 Hatchback; front-wheel drive; Manual or automatic with original hose arrangement\u003c\/td\u003e\n\u003ctd\u003eOriginal coolant branch connector assigned 5Q0121087B only; match all hose ends and retention arrangement. Not the 2019–2021 1.4L application. One connector supplied; separate hoses, seals and retaining hardware are not included.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolkswagen GTI\u003c\/td\u003e\n\u003ctd\u003e2015–2018\u003c\/td\u003e\n\u003ctd\u003e2.0L turbo TSI four-cylinder\u003c\/td\u003e\n\u003ctd\u003eMk7 Hatchback; front-wheel drive; 6-speed manual or 6-speed DSG with original hose arrangement\u003c\/td\u003e\n\u003ctd\u003eOriginal coolant branch connector assigned 5Q0121087B only; match all hose ends and retention arrangement. Later years and Golf R are not confirmed by this profile. One connector supplied; separate hoses, seals and retaining hardware are not included.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolkswagen Golf Alltrack\u003c\/td\u003e\n\u003ctd\u003e2017–2019\u003c\/td\u003e\n\u003ctd\u003e1.8L turbo TSI four-cylinder\u003c\/td\u003e\n\u003ctd\u003eMk7 Wagon; 4Motion; 6-speed manual or 6-speed DSG where offered\u003c\/td\u003e\n\u003ctd\u003eOriginal coolant branch connector assigned 5Q0121087B only; match all hose ends and retention arrangement. Factory Alltrack coolant-hose arrangement only. One connector supplied; separate hoses, seals and retaining hardware are not included.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolkswagen Golf SportWagen\u003c\/td\u003e\n\u003ctd\u003e2015–2019\u003c\/td\u003e\n\u003ctd\u003e1.8L turbo TSI four-cylinder\u003c\/td\u003e\n\u003ctd\u003eMk7 Wagon; FWD 2015–2018 or 4Motion 2017–2019; Factory manual \/ automatic \/ DSG arrangement where offered\u003c\/td\u003e\n\u003ctd\u003eOriginal coolant branch connector assigned 5Q0121087B only; match all hose ends and retention arrangement. 2019 1.8L is 4Motion only. Excludes 2015 TDI and 2019 1.4L FWD. One connector supplied; separate hoses, seals and retaining hardware are not included.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi A3\u003c\/td\u003e\n\u003ctd\u003e2015–2016\u003c\/td\u003e\n\u003ctd\u003e1.8L turbo TFSI four-cylinder; PR TA8\u003c\/td\u003e\n\u003ctd\u003e8V Sedan; front-wheel drive; 6-speed S tronic with original hose arrangement\u003c\/td\u003e\n\u003ctd\u003eOriginal coolant branch connector assigned 5Q0121087B only; match all hose ends and retention arrangement. Not 2.0L quattro, TDI, S3 or A3 e-tron based on this profile. One connector supplied; separate hoses, seals and retaining hardware are not included.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudi A3 Cabriolet\u003c\/td\u003e\n\u003ctd\u003e2015–2016\u003c\/td\u003e\n\u003ctd\u003e1.8L turbo TFSI four-cylinder; PR TA8\u003c\/td\u003e\n\u003ctd\u003e8V Cabriolet; front-wheel drive; 6-speed S tronic with original hose arrangement\u003c\/td\u003e\n\u003ctd\u003eOriginal coolant branch connector assigned 5Q0121087B only; match all hose ends and retention arrangement. Not 2.0L quattro or later Cabriolet engines based on this profile. One connector supplied; separate hoses, seals and retaining hardware are not included.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation and cooling-system service guidance\u003c\/h3\u003e\u003cp\u003eFollow the vehicle-specific cooling-system procedure and allow the engine to cool before opening the circuit. Relieve pressure and drain the affected portion of the system as prescribed. Keep exposed ports clean while the connector is removed.\u003c\/p\u003e\u003cp\u003eRelease the original hose connections using the correct method, then inspect the hose ends, sealing rings and retaining hardware. Renew separately specified seals or damaged retention components where required. Install the connector in its original orientation without stressing or twisting the hoses.\u003c\/p\u003e\u003cp\u003eFully seat each connection and verify that its retention mechanism engages. Restore the system using the specified coolant and filling\/bleeding procedure. Check the repaired connections for leakage and verify coolant level and normal operation after the prescribed service cycle.\u003c\/p\u003e\u003cp\u003eThis connector restores the assigned coolant branch. It does not include the surrounding hose assembly or replace other cooling-system components.\u003c\/p\u003e","brand":"Genuine VW\/Audi","offers":[{"title":"Default Title","offer_id":48026274889905,"sku":"5Q0-121-087-B","price":30.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0681\/1379\/3201\/files\/5q0-121-087-b-genuine-vw-audi-1.jpg?v=1791900191","url":"https:\/\/hstuning.com\/products\/5q0-121-087-b-genuine-vw-audi-coolant-hose-t-piece-connector","provider":"HS Tuning ","version":"1.0","type":"link"}