{"product_id":"performance-water-pump-thermostat-kit-for-land-rover-range-rover-2014-2020-3-0l","title":"Performance Water Pump \u0026 Thermostat Kit for Land Rover Range Rover (2014-2020) 3.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHeavy-Duty Aluminum Cooling System Refresh Kit for 2014-2020 Land Rover Range Rover (L405)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Performance Water Pump \u0026amp; Thermostat Kit replaces failure-prone factory plastic crossover pipes, the thermostat assembly, and the mechanical water pump on the 2014-2020 Land Rover Range Rover to prevent catastrophic coolant loss and rapid thermal runaway.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Land Rover Range Rover Cooling System Weakness\u003c\/h3\u003e\n\u003cp\u003eThe factory \u003cstrong\u003eAJ126\u003c\/strong\u003e 3.0L supercharged V6 relies on multi-piece molded plastic coolant crossover pipes routed under the supercharger manifold. Under continuous thermal cycling and sustained cooling pressures, the seam-welded plastic becomes brittle, resulting in hairline cracks, warped thermostat housings, and sudden pressurized coolant dumps into the engine valley. Furthermore, stock plastic bleeder plugs frequently shear during routine service, and factory water pump mechanical shaft seals weep prematurely, threatening severe cylinder head distortion if operating temperatures spike.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive refresh kit replaces vulnerable OEM plastic channels with cast and formed aluminum coolant crossover pipes that resist extreme engine bay heat soak and eliminate seam failure permanently. Matched with a high-flow mechanical water pump engineered for cavitation-free coolant circulation, a calibrated thermostat assembly with integrated sensor, and reinforced outlet hoses featuring rugged copper fittings and a solid copper bleeder plug, this direct replacement assembly restores pressure integrity across the entire primary cooling loop.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 Thermostat with Integrated Sensor\u003c\/li\u003e\n  \u003cli\u003e1 Aluminum Coolant Crossover Pipe Assembly\u003c\/li\u003e\n  \u003cli\u003e1 Mechanical Water Pump\u003c\/li\u003e\n  \u003cli\u003e1 Thermostat Outlet Hose with Copper Fittings\u003c\/li\u003e\n  \u003cli\u003e1 Copper Bleeder Screw \u0026amp; Crossover Plug\u003c\/li\u003e\n  \u003cli\u003e1 Heater Outlet Hose\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2014-2020 Land Rover Range Rover\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003eAJ126\u003c\/strong\u003e \/ \u003cstrong\u003eL405\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e340 hp \/ 332 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003eAJ812119\u003c\/strong\u003e, \u003cstrong\u003eAJ813909\u003c\/strong\u003e, \u003cstrong\u003eC2D20660\u003c\/strong\u003e, \u003cstrong\u003eLR090630\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2014-2020 Land Rover Range Rover 3.0L V6 Supercharged (AJ126)\u003c\/li\u003e\n  \u003cli\u003eAlso compatible with select AJ133 5.0L Supercharged V8 applications matching listed OEM references\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the L405 Range Rover?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2014-2020 Land Rover Range Rover equipped with the \u003cstrong\u003eAJ126\u003c\/strong\u003e 3.0L supercharged engine. \u003cstrong\u003eDoes not fit naturally aspirated engines; always verify your displacement, induction setup, and original part numbers prior to ordering.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to bleed the cooling circuit after installation?\u003c\/h4\u003e\n\u003cp\u003eYes, pulling a full vacuum fill followed by an automated coolant bleed cycle is required on the \u003cstrong\u003eAJ126\u003c\/strong\u003e to evacuate air pockets from the cylinder blocks and supercharger heat exchangers.\u003c\/p\u003e\n\n\u003ch3\u003eThe Land Rover Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to exact European thermal tolerances, this metal upgrade rectifies original equipment material shortcomings without triggering check-engine codes or compromising ECU-driven coolant temperature feedback.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67545310986488,"sku":"DS-EBGYWTZLA","price":246.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/performance-water-pump-thermostat-kit-for-land-rover-range-rover-2014-2020-3-0l-1.jpg?v=1790721433","url":"https:\/\/performancechiptuning.com\/products\/performance-water-pump-thermostat-kit-for-land-rover-range-rover-2014-2020-3-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}