{"product_id":"performance-radiator-for-isuzu-ascender-2003-2008-4-2l","title":"Performance Radiator for Isuzu Ascender (2003-2008) 4.2L","description":"\u003ch2\u003eHeavy-Duty All-Aluminum 3-Row Performance Radiator for 2003-2008 Isuzu Ascender\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Upgrades the factory cooling circuit with a heavy-duty, all-aluminum 3-row core to prevent thermal overload and catastrophic tank failure during high-load and towing operations.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ascender Cooling Weakness\u003c\/h3\u003e\n\u003cp\u003eThe factory radiator utilizes crimped plastic end tanks paired to a single-row core via rubber gaskets. Over repeated thermal expansion cycles, the plastic embrittles, causing hairline fractures at the inlet neck and eventual seam blowout. Furthermore, the stock core volume lacks sufficient thermal inertia, leading to rapid coolant heat soak and elevated transmission fluid temperatures under continuous load or high-temperature towing conditions.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eConstructed entirely from aircraft-grade aluminum with 100% precision TIG-welded end tanks, eliminating brittle plastic and failure-prone crimped seams. The oversized 3-row core (18.1 in H x 26.75 in W) significantly increases surface area contact and coolant volume for superior convective heat transfer. Features an integrated heavy-duty M14x1.5 transmission fluid cooler to maintain optimal ATF viscosity, paired with OEM-sized inlet (1.3 in) and outlet (1.57 in) ports for direct fitment.\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;\"\u003e2003-2008 Isuzu Ascender 4.2L\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;\"\u003eAtlas LL8 (Vortec 4200) \/ GMT360 \/ GMT370\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;\"\u003e275-291 hp \/ 275-277 lb-ft (Approx)\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 2458, CU2458, IZ3010147, 52381210\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2003-2008 Isuzu Ascender Base, S, LS, Limited (4.2L Inline-6 Automatic)\u003c\/li\u003e\n  \u003cli\u003eNote: Automatic transmission only; does not fit 5.3L V8 models.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Isuzu Durability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to meet the rigorous demands of heavy SUV utility, providing the thermal headroom required for severe-duty hauling, off-camber trail use, and reliable daily operation without pressure loss.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50426267697400,"sku":"DS-E5AWIFD3F","price":244.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/performance-radiator-for-isuzu-ascender-2003-2008-4-2l-1.jpg?v=1788397603","url":"https:\/\/performancechiptuning.com\/products\/performance-radiator-for-isuzu-ascender-2003-2008-4-2l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}