{"product_id":"aj89485-jaguar-aluminum-thermostat-housing","title":"LANDNOVO AJ89485 Aluminum Thermostat Housing Assembly for Jaguar S-Type, XJ8, XJR \u0026 Vanden Plas 4.2L V8 | Premium OE Replacement","description":"\u003ch2\u003eLANDNOVO — Precision in Motion. Engineered by GB.\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eBrand New – 100% Original Equipment Performance. Upgraded Aluminum Construction.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIs your Jaguar S-Type, XJ8, XJR, or Vanden Plas experiencing coolant leaks, overheating, or visible cracks in the thermostat housing? The original plastic thermostat housing is prone to cracking and failure over time. The \u003cstrong\u003eLANDNOVO AJ89485 Aluminum Thermostat Housing Assembly\u003c\/strong\u003e is a premium, upgraded replacement engineered to permanently solve this common failure point.\u003c\/p\u003e\n\n\u003cp\u003eManufactured from high-grade aluminum alloy, this thermostat housing is designed to withstand extreme temperature fluctuations without cracking, warping, or leaking. It is a direct drop-in replacement for the original plastic unit (OE AJ89485 \/ AJ87947) and includes the thermostat and gasket for a complete repair.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Upgrade to Aluminum?\u003c\/h3\u003e\n\u003cp\u003eThe factory-installed plastic thermostat housing on these Jaguar models is a well-known weak point. Over time, exposure to high engine temperatures and coolant causes the plastic to become brittle and crack, leading to coolant leaks and potential engine overheating. The LANDNOVO aluminum upgrade eliminates this failure mode entirely, providing a permanent solution that outlasts the original part.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUpgraded Aluminum Construction\u003c\/strong\u003e – replaces the failure-prone plastic original; resists cracking, warping, and heat degradation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand New\u003c\/strong\u003e – high-quality materials, rigorously tested\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100% OE Performance\u003c\/strong\u003e – direct replacement for OE AJ89485 \/ AJ87947\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComplete Assembly\u003c\/strong\u003e – includes thermostat housing, thermostat, and gasket\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLeak-Free Design\u003c\/strong\u003e – precision-machined sealing surfaces ensure a secure, long-lasting seal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlug \u0026amp; Play\u003c\/strong\u003e – bolt-on installation, no modification required\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBritish-Engineered Precision\u003c\/strong\u003e – Designed by GB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e12-Month Warranty\u003c\/strong\u003e – peace of mind\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\n\u003ctable style=\"width:100%; border-collapse: collapse;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color:#f5f5f5;\"\u003e\n      \u003cth style=\"border:1px solid #ddd; padding:8px; text-align:left;\"\u003eVehicle\u003c\/th\u003e\n      \u003cth style=\"border:1px solid #ddd; padding:8px; text-align:left;\"\u003eChassis\u003c\/th\u003e\n      \u003cth style=\"border:1px solid #ddd; padding:8px; text-align:left;\"\u003eYears\u003c\/th\u003e\n      \u003cth style=\"border:1px solid #ddd; padding:8px; text-align:left;\"\u003eEngine\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eJaguar S-Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eX200\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e2003–2008\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e4.2L V8 (without supercharger)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eJaguar XJ8\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eX350\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e2003–2005\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e4.2L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eJaguar XJR\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eX350\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e2003–2005\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e4.2L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eJaguar Vanden Plas\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eX350\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e2003–2005\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e4.2L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eJaguar Super V8\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eX350\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e2003–2005\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e4.2L V8\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e For 4.2L V8 engines without supercharger. Also fits some 3.5L V8 models up to VIN G49700. Confirm compatibility with your VIN before purchase.\u003c\/p\u003e\n\n\u003ch3\u003eOE Cross-Reference\u003c\/h3\u003e\n\n\u003ctable style=\"width:100%; border-collapse: collapse;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color:#f5f5f5;\"\u003e\n      \u003cth style=\"border:1px solid #ddd; padding:8px; text-align:left;\"\u003eOE Number\u003c\/th\u003e\n      \u003cth style=\"border:1px solid #ddd; padding:8px; text-align:left;\"\u003eType\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eAJ89485\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003ePrimary\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eAJ87947\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eSupersession\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eAJ87364\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eCross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eAJ85886\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eCross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eAJ85824\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eCross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eAJ85730\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eCross-reference\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Engine Coolant Thermostat Housing Assembly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum Alloy (upgraded from original plastic)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Thermostat housing, thermostat, gasket\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand New – 100% OE Performance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 12 Months\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSymptoms of a Failing Thermostat Housing\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant leak\u003c\/strong\u003e – visible coolant dripping from the thermostat housing area\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverheating engine\u003c\/strong\u003e – the engine temperature gauge rises above normal operating range\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVisible cracks\u003c\/strong\u003e – cracks in the plastic housing, often near the hose connections\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow coolant warning light\u003c\/strong\u003e – the dashboard displays a low coolant warning\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSweet smell of coolant\u003c\/strong\u003e – coolant burning on hot engine parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n  \u003cli\u003eDrain coolant before removal.\u003c\/li\u003e\n  \u003cli\u003eClean the mating surface thoroughly before installing the new housing.\u003c\/li\u003e\n  \u003cli\u003eUse the included gasket to ensure a proper seal.\u003c\/li\u003e\n  \u003cli\u003eAfter installation, refill with correct Jaguar-approved coolant and perform system bleed procedure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eLANDNOVO — Precision | Guaranteed | Durability\u003c\/strong\u003e\u003c\/p\u003e","brand":"Landnovo","offers":[{"title":"Default Title","offer_id":67815759348008,"sku":null,"price":88.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/4243\/8184\/files\/2_15e16e99-df30-488d-ab03-5f4ed967031d.jpg?v=1791001633","url":"https:\/\/landnovo.com\/products\/aj89485-jaguar-aluminum-thermostat-housing","provider":"Landnovo Premium Auto Parts","version":"1.0","type":"link"}