{"product_id":"bentley-07p121115j-w12-thermostat","title":"Bentley Bentayga Continental GT Flying Spur W12 Thermostat Housing Assembly 07P121115J – 104°C Coolant Regulator","description":"\u003ch2\u003eBentley W12 Thermostat Housing Assembly – 07P121115J\u003c\/h2\u003e\n\u003cp\u003eThis complete coolant thermostat \/ regulator housing assembly is engineered for Bentley W12 cooling systems using OE reference \u003cstrong\u003e07P121115J\u003c\/strong\u003e. It is a high-value replacement for the thermostat module fitted to selected Bentley Bentayga, Continental GT and Flying Spur 6.0 W12 applications. The thermostat controls coolant routing as the engine warms, helping the W12 reach and maintain its designed operating temperature efficiently.\u003c\/p\u003e\n\u003ch3\u003eMaterials \u0026amp; Engineering\u003c\/h3\u003e\n\u003cp\u003eThe assembly is built around a robust cast-metal coolant housing with accurately formed hose connections, machined sealing faces and an integrated thermostat mechanism. Its multi-port layout is designed to manage the high coolant flow requirements of Bentley's W12 engine. Equivalent thermostat specifications for 07P121115J use a \u003cstrong\u003e104°C opening temperature\u003c\/strong\u003e, supporting controlled warm-up and stable thermal management.\u003c\/p\u003e\n\u003ch3\u003eWhy the Thermostat Matters\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRegulates coolant flow between the engine and radiator circuit.\u003c\/li\u003e\n\u003cli\u003ePromotes faster controlled warm-up from cold.\u003c\/li\u003e\n\u003cli\u003eHelps prevent persistent overcooling caused by a thermostat stuck open.\u003c\/li\u003e\n\u003cli\u003eHelps restore correct circulation when an old thermostat sticks or the housing leaks.\u003c\/li\u003e\n\u003cli\u003eSupports consistent heater output and stable engine temperature.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eDesigned for Bentley vehicles using part number \u003cstrong\u003e07P121115J\u003c\/strong\u003e, including compatible W12 versions of the Bentayga, Continental GT and Flying Spur. Match the existing part number or vehicle parts catalogue before purchase.\u003c\/p\u003e\n\u003ch3\u003eReplacement Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eAllow the engine to cool completely and release cooling-system pressure safely.\u003c\/li\u003e\n\u003cli\u003eDrain the coolant to a clean container and remove the necessary intake covers or ducts for access.\u003c\/li\u003e\n\u003cli\u003eMark hose positions, release the coolant-hose connections and disconnect any attached electrical connector.\u003c\/li\u003e\n\u003cli\u003eRemove the thermostat-housing fasteners and lift the old assembly away.\u003c\/li\u003e\n\u003cli\u003eClean the mating surfaces and install fresh seals or O-rings used by the cooling circuit.\u003c\/li\u003e\n\u003cli\u003eInstall the 07P121115J assembly, tighten fasteners evenly and reconnect all hoses.\u003c\/li\u003e\n\u003cli\u003eRefill with the correct Bentley\/VAG-spec coolant mixture, bleed trapped air and bring the engine to operating temperature.\u003c\/li\u003e\n\u003cli\u003eCheck all joints for leaks and verify stable coolant temperature.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat symptoms can a failing thermostat cause?\u003c\/strong\u003e\u003cbr\u003eCommon symptoms include slow warm-up, unstable temperature, overheating, coolant leakage around the housing and reduced cabin-heater performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs 07P121115J a thermostat only or a housing assembly?\u003c\/strong\u003e\u003cbr\u003eThis listing is for the complete thermostat\/regulator housing assembly shown in the product images.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the reference opening temperature?\u003c\/strong\u003e\u003cbr\u003eEquivalent 07P121115J thermostat specifications use a 104°C opening temperature.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould coolant be replaced during installation?\u003c\/strong\u003e\u003cbr\u003eFresh correct-spec coolant is recommended whenever the system is drained for a major cooling-system component replacement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I select the correct version?\u003c\/strong\u003e\u003cbr\u003eUse the exact OE reference 07P121115J and confirm the same number on the original assembly or parts catalogue.\u003c\/p\u003e","brand":"ORIVOAUTO","offers":[{"title":"07P121115J","offer_id":45637853380631,"sku":"07P121115J","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0815\/1659\/3175\/files\/bentley-07p121115j-thermostat-1_aa7cb4bf-6990-4012-ae43-1837ab372a04.jpg?v=1790467481","url":"https:\/\/orivoauto.com\/products\/bentley-07p121115j-w12-thermostat","provider":"ORIVOAUTO","version":"1.0","type":"link"}