{"product_id":"performance-radiator-for-pontiac-bonneville-1980-1986-3-8l-4-3l","title":"Performance Radiator for Pontiac Bonneville (1980-1986) 3.8L 4.3L","description":"\u003ch2\u003eHigh-Efficiency Aluminum Performance Radiator for 1980-1986 Pontiac Bonneville\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The performance aluminum radiator replaces the deteriorated factory cooling unit on the 1980-1986 Pontiac Bonneville to optimize coolant heat dissipation and prevent engine overheating under load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Pontiac Bonneville Cooling Failure Modes\u003c\/h3\u003e\n\u003cp\u003eFactory radiators originally equipped on \u003cstrong\u003eGM B-Body\u003c\/strong\u003e and \u003cstrong\u003eGM G-Body\u003c\/strong\u003e platforms relied on copper-brass cores with soldered seams or early composite plastic end tanks crimped to an aluminum matrix. Decades of thermal cycling cause internal waterways to choke on mineral scale, restricting flow velocity. Concurrently, factory solder joints degrade and crimped rubber tank seals harden, inducing hairline splits, catastrophic coolant loss, and severe thermal runaway on aging \u003cstrong\u003eBuick 3.8L (LD5)\u003c\/strong\u003e and \u003cstrong\u003eChevrolet 4.3L (LB4)\u003c\/strong\u003e powerplants.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eConstructed from lightweight, aircraft-grade aluminum, this direct-fit radiator implements a high-density, furnace-brazed tube-and-fin core that substantially increases radiant surface area over OEM specifications. Hand-formed aluminum end tanks are fully \u003cstrong\u003eTIG-welded\u003c\/strong\u003e directly to the core headers, eliminating plastic failure points and leak-prone mechanical gaskets entirely. Optimized internal flow channels improve fluid dynamics, mitigating heat soak in congested traffic or high-ambient conditions while integrating factory-spec transmission oil cooler ports to support automatic transmissions without line modifications.\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; 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;\"\u003e1980-1986 Pontiac Bonneville\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\u003e3.8L V6 (LD5)\u003c\/strong\u003e, \u003cstrong\u003e4.3L V6 (LB4)\u003c\/strong\u003e \/ \u003cstrong\u003eGM B-Body\u003c\/strong\u003e (1980-1981), \u003cstrong\u003eGM G-Body\u003c\/strong\u003e (1982-1986)\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;\"\u003e110-140 hp \/ 190-225 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\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1980-1981 Pontiac Bonneville 3.8L V6 (B-Body Platform)\u003c\/li\u003e\n  \u003cli\u003e1982-1986 Pontiac Bonneville 3.8L V6 (G-Body Platform)\u003c\/li\u003e\n  \u003cli\u003e1985-1986 Pontiac Bonneville 4.3L V6 (G-Body Platform)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the GM G-Body Bonneville?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 1980-1986 Pontiac Bonneville equipped with the \u003cstrong\u003e3.8L V6\u003c\/strong\u003e or \u003cstrong\u003e4.3L V6\u003c\/strong\u003e engine when factory saddle brackets and hose positions match.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this unit accommodate factory automatic transmission cooler lines?\u003c\/strong\u003e\u003cbr\u003e Yes, it features integrated internal transmission cooler connections matched to standard GM inverted flare transmission lines.\u003c\/p\u003e\n\n\u003ch3\u003eThe Pontiac Standard\u003c\/h3\u003e\n\u003cp\u003eMaintain consistent operating temperatures and preserve the mechanical longevity of your classic GM rear-wheel-drive cruiser with an all-aluminum cooling system built to exceed original factory heat-rejection tolerances.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50593912750328,"sku":"DS-EBURYSFTB","price":174.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/performance-radiator-for-pontiac-bonneville-1980-1986-3-8l-4-3l-1.jpg?v=1790052791","url":"https:\/\/performancechiptuning.com\/fr\/products\/performance-radiator-for-pontiac-bonneville-1980-1986-3-8l-4-3l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}