{"product_id":"bentley-07c103474q-w12-breather-valve","title":"Bentley Continental GT GTC Flying Spur W12 Crankcase Breather Valve Hose Assembly 07C103474Q – Bank 2 PCV Vent","description":"\u003ch2\u003eBentley W12 Bank 2 Crankcase Breather Valve \u0026amp; Hose Assembly – 07C103474Q\u003c\/h2\u003e\n\u003cp\u003eMaintain correct crankcase ventilation on the Bentley 6.0 W12 with this complete breather valve and hose assembly identified by OE reference \u003cstrong\u003e07C103474Q\u003c\/strong\u003e. This assembly is used on \u003cstrong\u003eBank 2 \/ cylinders 7–12\u003c\/strong\u003e and combines the vent valve, formed breather hoses, connectors and heat-protection sections into a single replacement unit.\u003c\/p\u003e\n\u003ch3\u003ePremium Construction for a High-Heat Engine Bay\u003c\/h3\u003e\n\u003cp\u003eThe assembly uses oil-resistant flexible hose sections, molded connection ends, a pressure-regulating breather valve and protective thermal sleeving in high-temperature areas. Correct hose geometry is especially important on the tightly packaged W12 because it keeps the vent system routed away from hot and moving components while preserving consistent internal airflow.\u003c\/p\u003e\n\u003ch3\u003eWhat It Does\u003c\/h3\u003e\n\u003cp\u003eThe crankcase ventilation system manages blow-by gases generated during combustion. The 07C103474Q valve and hose network routes these vapors back toward the intake in a controlled way while regulating crankcase pressure. A healthy system supports stable idle quality, helps reduce unwanted oil vapor escape and prevents excessive pressure from building inside the engine.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRestores controlled Bank 2 crankcase ventilation.\u003c\/li\u003e\n\u003cli\u003eHelps eliminate air leaks caused by split or hardened breather hoses.\u003c\/li\u003e\n\u003cli\u003eSupports stable idle and predictable engine vacuum.\u003c\/li\u003e\n\u003cli\u003eReduces the chance of oil seepage associated with excessive crankcase pressure.\u003c\/li\u003e\n\u003cli\u003eComplete formed-hose layout makes installation cleaner than piecing together aged lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eFor Bentley Continental GT, Continental GTC and Flying Spur models equipped with compatible 6.0 W12 engines and OE reference \u003cstrong\u003e07C103474Q\u003c\/strong\u003e. This part is the Bank 2 version; the opposite bank uses a different part number.\u003c\/p\u003e\n\u003ch3\u003eReplacement Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eWork on a cool engine and remove the upper engine covers.\u003c\/li\u003e\n\u003cli\u003eRemove intake ducting or nearby components required for clear access to the Bank 2 breather routing.\u003c\/li\u003e\n\u003cli\u003ePhotograph the original hose path and connector positions before removal.\u003c\/li\u003e\n\u003cli\u003eRelease the quick connectors and clamps without twisting nearby plastic fittings.\u003c\/li\u003e\n\u003cli\u003eRemove the old valve-and-hose assembly and inspect mating ports for oil sludge or damaged seals.\u003c\/li\u003e\n\u003cli\u003eInstall the new 07C103474Q assembly in the same routing, ensuring every connector locks fully and the heat shielding remains correctly positioned.\u003c\/li\u003e\n\u003cli\u003eReassemble the intake components, start the engine and check for vacuum leaks, whistling noises or loose connections.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is Bank 2?\u003c\/strong\u003e\u003cbr\u003eOn this W12 application, 07C103474Q serves the crankcase ventilation path for cylinders 7–12.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat symptoms point to a worn breather assembly?\u003c\/strong\u003e\u003cbr\u003eTypical signs include rough idle, whistling or hissing, oil smell, oil seepage, abnormal crankcase vacuum and split or oil-softened hoses.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this a PCV component?\u003c\/strong\u003e\u003cbr\u003eYes. It performs the pressure-control and vapor-routing function commonly described as PCV or crankcase ventilation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I replace only a hose section?\u003c\/strong\u003e\u003cbr\u003eReplacing the complete formed assembly renews the valve, connectors and aged hose sections together for a cleaner long-term repair.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I confirm the correct side?\u003c\/strong\u003e\u003cbr\u003eMatch OE number 07C103474Q; the Bank 1 assembly uses a different reference.\u003c\/p\u003e","brand":"ORIVOAUTO","offers":[{"title":"07C103474Q","offer_id":45637853413399,"sku":"07C103474Q","price":649.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0815\/1659\/3175\/files\/bentley-07c103474q-breather-valve-1_71014f90-4fa0-46a1-98d0-aec7a7496055.jpg?v=1790467509","url":"https:\/\/orivoauto.com\/products\/bentley-07c103474q-w12-breather-valve","provider":"ORIVOAUTO","version":"1.0","type":"link"}