{"product_id":"performance-radiator-with-shroud-for-porsche-cayenne-2003-2010-3-2l-3-6l-4-8l","title":"Performance Radiator with Shroud for Porsche Cayenne (2003-2010) 3.2L 3.6L 4.8L","description":"\u003ch2\u003eHigh-Efficiency Performance Radiator with Shroud for 2003-2010 Porsche Cayenne\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Performance Radiator with Shroud replaces the failure-prone factory heat exchanger on the 2003-2010 Porsche Cayenne to deliver superior coolant heat rejection and eliminate catastrophic plastic tank splits under pressure.\u003c\/p\u003e\u003ch3\u003eThe Stock Porsche Cayenne Cooling System Vulnerability\u003c\/h3\u003e\u003cp\u003eThe OEM radiator in the first-generation \u003cstrong\u003e9PA \/ 955 \/ 957\u003c\/strong\u003e Porsche Cayenne relies on composite plastic end tanks crimped onto an aluminum core. Over continuous thermal cycling, the extreme underhood operating temperatures generated by the \u003cstrong\u003eVR6\u003c\/strong\u003e and high-compression \u003cstrong\u003eM48 V8\u003c\/strong\u003e powertrains embrittle the plastic polymer. This results in structural fatigue, micro-cracking at the hose necks, and compromised crimp seams that weep coolant under pressure. Furthermore, the single-row factory core easily succumbs to heat soak during spirited driving, low-speed idling, or heavy towing, pushing cooling temperatures into critical failure thresholds.\u003c\/p\u003e\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\u003cp\u003eThis upgraded cooling assembly features an all-aluminum, 2-row brazed tube-and-fin core engineered for maximum thermodynamic dissipation. The core measures approximately 28 in x 21.5 in with 1-5\/8 in inlet and outlet ports, significantly expanding fluid capacity and surface area contact over stock. Reinforced aluminum end tanks are 100% TIG-welded to eliminate factory failure-prone crimp seals and withstand heightened cooling circuit pressures. Included is a laser-cut, bolt-on aluminum shroud carrying twin high-output electric cooling fans with dedicated wiring and relay hardware, pulling continuous laminar airflow across the entire fin matrix regardless of forward vehicle velocity.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; margin-bottom: 20px;\"\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;\"\u003e2003-2010 Porsche Cayenne\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;\"\u003e3.2L VR6, 3.6L VR6, 4.8L M48 \/ Type 9PA (955\/957)\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;\"\u003e247-385 hp \/ 229-369 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;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2004-2006 Porsche Cayenne Base 3.2L V6 (955)\u003c\/li\u003e\n\u003cli\u003e2008-2010 Porsche Cayenne Base 3.6L V6 (957)\u003c\/li\u003e\n\u003cli\u003e2008-2010 Porsche Cayenne S 4.8L V8 (957)\u003c\/li\u003e\n\u003cli\u003e2008-2010 Porsche Cayenne GTS 4.8L V8 (957)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDoes this fit the 9PA \/ 955 \/ 957 Cayenne?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2003-2010 Porsche Cayenne equipped with the 3.2L, 3.6L, or 4.8L naturally aspirated engine configurations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this assembly require modifications to factory coolant hoses or transmission cooler lines?\u003c\/strong\u003e\u003cbr\u003e No, it installs into the factory radiator mounting points, though installer verification of hose routing and cooler line clearance is required prior to securing.\u003c\/p\u003e\u003ch3\u003eThe Porsche Caliber\u003c\/h3\u003e\u003cp\u003eEngineered to meet the stringent thermal demands of high-performance European engineering, this full-aluminum cooling kit ensures optimal operating temps and seamless integration without triggering coolant temperature faults or check engine lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50519867818232,"sku":"DS-EUVPNWM5Y","price":389.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/performance-radiator-with-shroud-for-porsche-cayenne-2003-2010-3-2l-3-6l-4-8l-1.jpg?v=1789540676","url":"https:\/\/performancechiptuning.com\/products\/performance-radiator-with-shroud-for-porsche-cayenne-2003-2010-3-2l-3-6l-4-8l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}