{"product_id":"tgk-motorsport-audi-4-0t-front-thermostat-billet-piping-kit","title":"TGK Motorsport Audi 4.0T Front Thermostat Billet Piping Kit","description":"\u003cdiv class=\"tgk\"\u003e\n\u003cdiv class=\"tgk-section\"\u003e\n\u003cdiv class=\"tgk-sh\"\u003e\n\u003cdiv class=\"tgk-ic\"\u003e\u003csvg viewbox=\"0 0 24 24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M7 2h2v2h6V2h2v2h1a2 2 0 012 2v1h-2v1h2v4h-2v1h2v1a2 2 0 01-2 2h-1v2h-6v2H9v-2H7v2H5v-2H4a2 2 0 01-2-2v-1h2v-1H2V9h2V8H2V7a2 2 0 012-2h1V3h2V2zm1 4a1 1 0 00-1 1v8a1 1 0 001 1h8a1 1 0 001-1V7a1 1 0 00-1-1H8zm2 2h4v6h-4V8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"tgk-sh-title\"\u003eOverview\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tgk-p\"\u003eEliminate the elusive cold-temperature coolant leak on your Audi 4.0T with the TGK Motorsport Front Thermostat Billet Piping Kit — engineered to replace the factory plastic coolant elbow with a precision-machined 6061 aluminum solution featuring a dual-gasket design for maximum sealing and long-term reliability.\u003c\/div\u003e\n\u003cdiv class=\"tgk-p\"\u003eThe factory Audi 4.0T cooling system utilizes a plastic coolant elbow at the front thermostat housing that is a common failure point. This component relies on a single O-ring to seal against the thermostat housing, which over time becomes prone to hardening, deformation, and leakage — especially under cold start conditions. These leaks are often difficult to trace, leading to recurring coolant loss without an obvious source.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tgk-section\"\u003e\n\u003cdiv class=\"tgk-sh\"\u003e\n\u003cdiv class=\"tgk-ic\"\u003e\u003csvg viewbox=\"0 0 24 24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M3 3h18v2H3V3zm0 4h12v2H3V7zm0 4h18v2H3v-2zm0 4h12v2H3v-2zm0 4h18v2H3v-2z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"tgk-sh-title\"\u003eSpecifications\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ctable class=\"tgk-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e6061-T6 Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eAudi 4.0T Front Thermostat Housing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSealing Design\u003c\/td\u003e\n\u003ctd\u003eDual-Gasket Configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003ePrecision CNC Machined\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eDirect OEM Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tgk-section\"\u003e\n\u003cdiv class=\"tgk-sh\"\u003e\n\u003cdiv class=\"tgk-ic\"\u003e\u003csvg viewbox=\"0 0 24 24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M13 2L3 14h9l-1 8 10-12h-9l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"tgk-sh-title\"\u003eFeatures \u0026amp; Benefits\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tgk-feats\"\u003e\n\u003cdiv class=\"tgk-feat\"\u003e\n\u003cdiv class=\"tgk-feat-chk\"\u003e✓\u003c\/div\u003e\n\u003cdiv class=\"tgk-feat-txt\"\u003e\n\u003cb\u003e6061-T6 Aluminum Construction\u003c\/b\u003eSuperior strength and thermal resistance compared to failure-prone factory plastic elbow.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tgk-feat\"\u003e\n\u003cdiv class=\"tgk-feat-chk\"\u003e✓\u003c\/div\u003e\n\u003cdiv class=\"tgk-feat-txt\"\u003e\n\u003cb\u003eDual-Gasket Sealing Design\u003c\/b\u003eRedundant seal eliminates coolant leaks even under high-stress conditions and engine aging.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tgk-feat\"\u003e\n\u003cdiv class=\"tgk-feat-chk\"\u003e✓\u003c\/div\u003e\n\u003cdiv class=\"tgk-feat-txt\"\u003e\n\u003cb\u003ePrecision CNC Machined\u003c\/b\u003eExact OEM fitment with superior surface finish for optimal gasket sealing performance.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tgk-feat\"\u003e\n\u003cdiv class=\"tgk-feat-chk\"\u003e✓\u003c\/div\u003e\n\u003cdiv class=\"tgk-feat-txt\"\u003e\n\u003cb\u003eExtreme Thermal Cycling Resistance\u003c\/b\u003eBuilt to withstand repeated heat cycles that degrade and crack factory plastic components.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tgk-feat\"\u003e\n\u003cdiv class=\"tgk-feat-chk\"\u003e✓\u003c\/div\u003e\n\u003cdiv class=\"tgk-feat-txt\"\u003e\n\u003cb\u003eCold Weather Performance\u003c\/b\u003eMaintains reliable seal during cold starts when factory O-rings become rigid and prone to failure.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tgk-feat\"\u003e\n\u003cdiv class=\"tgk-feat-chk\"\u003e✓\u003c\/div\u003e\n\u003cdiv class=\"tgk-feat-txt\"\u003e\n\u003cb\u003ePermanent Solution\u003c\/b\u003eBuilt to outlast the life of your engine, eliminating recurring coolant leak issues.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tgk-section\"\u003e\n\u003cdiv class=\"tgk-sh\"\u003e\n\u003cdiv class=\"tgk-ic\"\u003e\u003csvg viewbox=\"0 0 24 24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M22.7 19l-9.1-9.1c.9-2.3.4-5-1.5-6.9-2-2-5-2.4-7.4-1.3L9 6 6 9 1.6 4.7C.4 7.1.9 10.1 2.9 12.1c1.9 1.9 4.6 2.4 6.9 1.5l9.1 9.1c.4.4 1 .4 1.4 0l2.3-2.3c.5-.4.5-1.1.1-1.4z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv class=\"tgk-sh-title\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tgk-faq-item\"\u003e\n\u003cdiv class=\"tgk-faq-q\"\u003eWhy does the factory thermostat elbow fail?\u003c\/div\u003e\n\u003cdiv class=\"tgk-faq-a\"\u003eOver time, heat cycling and vibration degrade the OEM plastic elbow and single sealing O-ring. This results in slow coolant leaks, especially during cold temperatures when the rubber O-ring becomes rigid and unable to conform to surface irregularities.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tgk-faq-item\"\u003e\n\u003cdiv class=\"tgk-faq-q\"\u003eHow does the dual-gasket design improve sealing?\u003c\/div\u003e\n\u003cdiv class=\"tgk-faq-a\"\u003eThe billet elbow features dual-gasket sealing that provides redundant protection against coolant leaks. Even if one seal begins to degrade, the secondary seal maintains system integrity under high-stress conditions.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tgk-faq-item\"\u003e\n\u003cdiv class=\"tgk-faq-q\"\u003eIs this a direct replacement for the OEM part?\u003c\/div\u003e\n\u003cdiv class=\"tgk-faq-a\"\u003eYes, the TGK Motorsport billet piping kit is engineered as a direct OEM replacement with precision CNC machining ensuring exact fitment to the factory thermostat housing.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tgk-faq-item\"\u003e\n\u003cdiv class=\"tgk-faq-q\"\u003eCan this be used for preventative maintenance?\u003c\/div\u003e\n\u003cdiv class=\"tgk-faq-a\"\u003eAbsolutely. Whether you're performing preventative maintenance or chasing down an existing mystery leak, this kit offers a permanent solution that eliminates future coolant elbow failures.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tgk-faq-item\"\u003e\n\u003cdiv class=\"tgk-faq-q\"\u003eWhy is this leak difficult to diagnose?\u003c\/div\u003e\n\u003cdiv class=\"tgk-faq-a\"\u003eThe leak occurs at the front of the engine near multiple coolant pathways, making it extremely difficult to trace the source without removing components. The TGK solution eliminates all ambiguity by replacing the entire failure-prone assembly.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TGK Motorsport","offers":[{"title":"S6\/S7","offer_id":47340217172117,"sku":"TGK-ENG-06","price":389.99,"currency_code":"USD","in_stock":true},{"title":"RS6\/RS7\/A8\/S8","offer_id":47340217204885,"sku":"TGK-ENG-07","price":389.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0776\/6510\/8117\/files\/Main-1_bc2db4c7-11a0-41e3-b1b7-5d89a2c2e547.jpg?v=1778267801","url":"https:\/\/autobahnsupplyco.com\/products\/tgk-motorsport-audi-4-0t-front-thermostat-billet-piping-kit","provider":"Autobahn supply co","version":"1.0","type":"link"}