{"product_id":"performance-radiator-for-jaguar-xj8-2005-2009-4-2l-automatic","title":"Performance Radiator for Jaguar XJ8 (2005-2009) 4.2L Automatic","description":"\u003ch2\u003eHeavy-Duty All-Aluminum Performance Radiator for 2005-2009 Jaguar XJ8\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Direct-fit aluminum cooling upgrade engineered to replace failure-prone factory plastic-tank units and stabilize operating temperatures on the 4.2L V8 Jaguar XJ8.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock XJ8 Cooling System Weakness\u003c\/h3\u003e\n\u003cp\u003eFactory X350 cooling modules rely on composite plastic end-tanks crimped onto an aluminum core with rubber gaskets. Over repeated thermal cycles, radiant engine bay heat embrittles the plastic seams, leading to stress fractures, gasket degradation, and sudden coolant loss. Additionally, the restrictive stock single-row core struggles with heat dissipation under sustained loads, risking cylinder head distortion on the all-aluminum AJ-V8 engine.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis heavy-duty radiator features a 4-row crossflow core fabricated entirely from aircraft-grade aluminum. Featuring 2 mm thick TIG-welded end tanks and a vacuum-brazed core, it eliminates mechanical crimps and failure-prone plastic. A dense 14–16 fins-per-inch matrix with 3\/8-inch tube spacing dramatically expands effective heat exchange surface area. An integrated internal transmission oil cooler ensures fluid temperatures match optimal engine operating thresholds without auxiliary plumbing.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2005-2009 Jaguar XJ8 4.2L V8 Automatic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eAJ-V8 (AJ34) \/ X350, X356, X358\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e300 hp \/ 310 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eCore Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e20 in x 22.5 in (Overall: 29 in x 21 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eInlet \/ Outlet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e1-5\/8 in \/ 1-5\/8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eDPI 13148 \/ 3W4Z8005AA, 5W4Z8005AA, 6W4Z8005AA, XW4Z8005BA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2005-2009 Jaguar XJ8 Base Sedan 4.2L V8 Automatic\u003c\/li\u003e\n  \u003cli\u003e2005-2009 Jaguar XJ8 L Sedan 4.2L V8 Automatic\u003c\/li\u003e\n  \u003cli\u003e2005-2009 Jaguar Vanden Plas Sedan 4.2L V8 Automatic\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Jaguar Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to exact European OE dimensions for a direct drop-in installation with factory mounts, fan shrouds, and transmission cooler lines—retaining factory climate control calibration without modifications or warning lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50416629186808,"sku":"DS-EU8FE9RM2","price":329.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/performance-radiator-for-jaguar-xj8-2005-2009-4-2l-automatic-1.jpg?v=1788323165","url":"https:\/\/performancechiptuning.com\/es\/products\/performance-radiator-for-jaguar-xj8-2005-2009-4-2l-automatic","provider":"Performance Chip Tuning","version":"1.0","type":"link"}