{"product_id":"tgk-motorsport-pcv-breather-line-kit-audi-ea839","title":"TGK Motorsport PCV Breather Line Kit - Audi EA839","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\"\u003eThe factory PCV breather hose on the EA839 engine is one of the most common failure points under heat and boost. Plastic quick-connect fittings, thin hose construction, and fragile internal check valves make it poorly suited for turbocharged crankcase pressures—especially on tuned or aggressively driven cars. The TGK Motorsport Billet PCV Breather Hose Assembly replaces every weak point in the OEM design with materials and valve architecture intended for long-term reliability in high-temperature, high-boost environments.\u003c\/div\u003e\n\u003cdiv class=\"tgk-p\"\u003eRather than reworking the factory concept, this assembly was designed from the ground up with a focus on valve control, material stability, and long-term service life. Every component was selected to solve a specific failure mode found in the OEM system. This is not a short-term fix or cosmetic upgrade—the TGK Motorsport Billet PCV Breather Hose Assembly is engineered to support everything from stock daily drivers to high-boost, tuned EA839 applications without degradation over time.\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\u003eEngine Compatibility\u003c\/td\u003e\n\u003ctd\u003eEA839 2.9T \/ 3.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eCNC-Machined 6061-T6 Aluminum Fittings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCheck Valve Design\u003c\/td\u003e\n\u003ctd\u003ePrecision Piston-Style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHose Material\u003c\/td\u003e\n\u003ctd\u003eFKM-Lined Multi-Ply Silicone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Rating\u003c\/td\u003e\n\u003ctd\u003e40+ PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eDirect OE 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=\"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\"\u003eVariant Comparison\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ctable class=\"tgk-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth class=\"th-teal\"\u003e2.9T Kit\u003c\/th\u003e\n\u003cth class=\"th-org\"\u003e3.0T Kit\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd class=\"ct\"\u003eTGK-PCV-01\u003c\/td\u003e\n\u003ctd class=\"co\"\u003eTGK-PCV-02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Code\u003c\/td\u003e\n\u003ctd class=\"ct\"\u003eEA839 2.9T\u003c\/td\u003e\n\u003ctd class=\"co\"\u003eEA839 3.0T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCheck Valve Design\u003c\/td\u003e\n\u003ctd class=\"ct\"\u003ePrecision Piston-Style\u003c\/td\u003e\n\u003ctd class=\"co\"\u003ePrecision Piston-Style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitting Material\u003c\/td\u003e\n\u003ctd class=\"ct\"\u003e6061-T6 Aluminum\u003c\/td\u003e\n\u003ctd class=\"co\"\u003e6061-T6 Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\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\u003ePrecision Piston-Style Check Valves\u003c\/b\u003eMachined piston design provides immediate sealing under boost with consistent operation regardless of heat or oil vapor exposure, pressure-tested beyond 40+ PSI.\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\u003eCNC-Machined 6061-T6 Aluminum Fittings\u003c\/b\u003eBillet aluminum construction eliminates plastic cracking, heat fatigue, and deformation while maintaining precise sealing surfaces for long-term leak prevention.\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\u003eFKM-Lined Multi-Ply Silicone Hose\u003c\/b\u003eReinforced silicone with inner FKM fluoroelastomer liner prevents oil vapor saturation and external weeping, keeping the hose structurally stable over time.\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\u003eOE-Correct Routing and Fitment\u003c\/b\u003eDirect integration with factory air-oil separator and engine cover while retaining both OEM vacuum reference points without adapters or compromises.\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\u003eIntelligent Boost Response\u003c\/b\u003eAt idle and light load, vapors flow through post-throttle vacuum; under boost, piston valve seals and redirects to turbo inlet vacuum source.\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\u003eLong-Term Reliability Design\u003c\/b\u003ePermanent solution engineered for stock daily drivers to high-boost tuned applications without degradation—not another consumable plastic failure point.\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 PCV hose fail?\u003c\/div\u003e\n\u003cdiv class=\"tgk-faq-a\"\u003eAudi's OE breather hose relies on plastic connectors and diaphragm-style check valves that degrade from repeated heat cycling. As these valves weaken, they can leak or fail entirely, allowing boost pressure to enter the crankcase and forcing oil out of seals.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tgk-faq-item\"\u003e\n\u003cdiv class=\"tgk-faq-q\"\u003eHow do the piston-style check valves work differently?\u003c\/div\u003e\n\u003cdiv class=\"tgk-faq-a\"\u003eThe piston design provides immediate sealing under boost with higher effective flow area and consistent operation regardless of heat or oil vapor exposure, unlike flexible diaphragms that degrade over time.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tgk-faq-item\"\u003e\n\u003cdiv class=\"tgk-faq-q\"\u003eDoes this require any modifications to install?\u003c\/div\u003e\n\u003cdiv class=\"tgk-faq-a\"\u003eNo, the assembly integrates directly with the factory air-oil separator and engine cover while retaining both OEM vacuum reference points. No rerouting, adapters, or compromises to crankcase system logic are required.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tgk-faq-item\"\u003e\n\u003cdiv class=\"tgk-faq-q\"\u003eCan this handle high-boost tuned applications?\u003c\/div\u003e\n\u003cdiv class=\"tgk-faq-a\"\u003eYes, each valve is pressure-tested beyond 40+ PSI and the entire assembly is engineered to support everything from stock daily drivers to high-boost, tuned EA839 applications without degradation.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tgk-faq-item\"\u003e\n\u003cdiv class=\"tgk-faq-q\"\u003eWhat's the difference between the 2.9T and 3.0T kits?\u003c\/div\u003e\n\u003cdiv class=\"tgk-faq-a\"\u003eBoth kits use identical piston-style check valves and billet aluminum construction, with specific fitment differences for each EA839 engine variant to ensure proper OE integration.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TGK Motorsport","offers":[{"title":"EA839 2.9T \/ OE Style","offer_id":47388261220501,"sku":"TGK-0311-02","price":249.99,"currency_code":"USD","in_stock":false},{"title":"EA839 2.9T \/ Billet Aluminum","offer_id":47340219662485,"sku":"TGK-PCV-01","price":349.99,"currency_code":"USD","in_stock":true},{"title":"EA839 3.0T \/ OE Style","offer_id":47388261253269,"sku":"TGK-0311-04","price":249.99,"currency_code":"USD","in_stock":false},{"title":"EA839 3.0T \/ Billet Aluminum","offer_id":47340219695253,"sku":"TGK-PCV-02","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0776\/6510\/8117\/files\/Hero.jpg?v=1778267875","url":"https:\/\/autobahnsupplyco.com\/products\/tgk-motorsport-pcv-breather-line-kit-audi-ea839","provider":"Autobahn supply co","version":"1.0","type":"link"}