{"product_id":"performance-radiator-for-chevrolet-astro-1996-2005-4-3l-automatic","title":"Performance Radiator for Chevrolet Astro (1996-2005) 4.3L Automatic","description":"\u003ch2\u003eHigh-Efficiency 3-Row Aluminum Performance Radiator for 1996-2005 Chevrolet Astro\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Upgrades the factory cooling system with an all-aluminum 3-row crossflow core and integrated dual oil coolers to eliminate thermal runaway and prevent transmission and engine overheating under heavy load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Astro Thermal Dissipation Weakness\u003c\/h3\u003e\n\u003cp\u003eFactory M-body cooling assemblies utilize composite plastic end tanks crimped onto a thin single-row core with rubber gasket seals. Over extended duty cycles, the tight engine bay packaging of the Vortec 4.3L restricts ambient airflow, driving up underhood temperatures. The resulting thermal expansion cycles cause the OEM plastic tanks to become brittle, leading to micro-fractures, blown tank-to-core crimp seals, and dangerous coolant loss. Furthermore, the undersized stock core lacks the fluid capacity and fin density needed to dissipate secondary heat when towing or operating in high ambient conditions, resulting in progressive heat soak and transmission fluid breakdown.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis heavy-duty upgrade is engineered from 100% AA5052 aircraft-grade aluminum, utilizing fully TIG-welded tanks that completely eliminate failure-prone mechanical crimps and plastic components. The core features a 3-row racing tube layout measuring 28-1\/4 inches wide by 17-1\/2 inches high, dramatically expanding total coolant volume and surface dissipation area. Designed with a crossflow configuration, it incorporates both internal transmission and engine oil coolers to maintain stabilized fluid temperatures across all critical drivetrains. Every unit undergoes 100% pressure-leak testing to ensure reliable, high-pressure operation under severe duty.\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;\"\u003e1996-2005 Chevrolet Astro (Automatic Transmission)\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;\"\u003e4.3L Vortec 4300 (L35\/LU3) \/ GM M-Body\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;\"\u003e190 hp \/ 250 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;\"\u003e28-1\/4 in W x 17-1\/2 in H (3-Row)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eOverall Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e38-4\/5 in W x 21-3\/5 in H\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eInlet \/ Outlet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eInlet: 1-5\/16 in | Outlet: 1-9\/16 in\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eInternal Coolers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eIntegrated Transmission Oil Cooler \u0026amp; Engine Oil Cooler\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eInterchange \/ OEM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eDPI 1786, CU1786, Q1786, RAD1786, 411786, 15180873, 52472906, 52482175, 8012003, GM3010303\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1996 Chevrolet Astro 4.3L V6 Automatic\u003c\/li\u003e\n  \u003cli\u003e1997 Chevrolet Astro 4.3L V6 Automatic\u003c\/li\u003e\n  \u003cli\u003e1998 Chevrolet Astro 4.3L V6 Automatic\u003c\/li\u003e\n  \u003cli\u003e1999 Chevrolet Astro 4.3L V6 Automatic\u003c\/li\u003e\n  \u003cli\u003e2000 Chevrolet Astro 4.3L V6 Automatic\u003c\/li\u003e\n  \u003cli\u003e2001 Chevrolet Astro 4.3L V6 Automatic\u003c\/li\u003e\n  \u003cli\u003e2002 Chevrolet Astro 4.3L V6 Automatic\u003c\/li\u003e\n  \u003cli\u003e2003 Chevrolet Astro 4.3L V6 Automatic\u003c\/li\u003e\n  \u003cli\u003e2004 Chevrolet Astro 4.3L V6 Automatic\u003c\/li\u003e\n  \u003cli\u003e2005 Chevrolet Astro 4.3L V6 Automatic\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Chevrolet Durability Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to withstand commercial fleet demands, continuous towing loads, and rugged cross-country hauling, this all-aluminum cooling system provides the structural durability and thermal capacity needed to protect your 4.3L Vortec engine from catastrophic heat failures.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50426424131832,"sku":"DS-E8XKNI108","price":244.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/performance-radiator-for-chevrolet-astro-1996-2005-4-3l-automatic-1.jpg?v=1788398306","url":"https:\/\/performancechiptuning.com\/fr\/products\/performance-radiator-for-chevrolet-astro-1996-2005-4-3l-automatic","provider":"Performance Chip Tuning","version":"1.0","type":"link"}