{"product_id":"upgrade-all-aluminum-tube-fin-intercooler-for-2001-2005-lly-lb7-chevrolet-gmc-sierra-2500hd-3500hd-6-6l-duramax-spelab","title":"Upgrade All-Aluminum Tube-Fin Intercooler for 2001-2005 LLY LB7 Chevrolet\/GMC Sierra 2500HD 3500HD 6.6L Duramax | SPELAB","description":"\u003cp\u003e---tab Description---\u003c\/p\u003e\n\u003ch2\u003eLB7\/LLY Duramax Tube-Fin Intercooler Overview\u003c\/h2\u003e\n\u003cp\u003eRestore performance and reliability to your aging Duramax. The SPELAB All-Aluminum Tube-Fin Intercooler is the ultimate durability replacement for the 2001-2005 Chevy\/GMC 2500HD\/3500HD (LB7 \u0026amp; LLY).\u003c\/p\u003e\n\u003cp\u003eOlder Duramax trucks, especially the LLY, struggle with engine coolant overheating when the cooling stack is restricted. Unlike thick, heavy aftermarket cores that can block airflow to the radiator, SPELAB's 40mm Slim-Profile Tube-Fin core is engineered to maintain factory-level airflow pass-through. This design prioritizes the health of your entire cooling system, keeping water temperatures safe while towing.\u003c\/p\u003e\n\u003cp\u003eCrucially, this unit replaces the failure-prone factory plastic end tanks with 100% aluminum. No more blown crimps, no more boost leaks—just reliable, consistent performance for your work truck or daily driver.\u003c\/p\u003e\n\u003ch2\u003eAll-Aluminum Intercooler Fitment\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e2001 LB7 Chevrolet\/GMC Sierra 2500HD 3500HD 6.6L Duramax\u003c\/li\u003e\n\u003cli\u003e2002 LB7 Chevrolet\/GMC Sierra 2500HD 3500HD 6.6L Duramax\u003c\/li\u003e\n\u003cli\u003e2003 LB7 Chevrolet\/GMC Sierra 2500HD 3500HD 6.6L Duramax\u003c\/li\u003e\n\u003cli\u003e2004 LB7 Chevrolet\/GMC Sierra 2500HD 3500HD 6.6L Duramax\u003c\/li\u003e\n\u003cli\u003e2004.5 LLY Chevrolet\/GMC Sierra 2500HD 3500HD 6.6L Duramax\u003c\/li\u003e\n\u003cli\u003e2005 LLY Chevrolet\/GMC Sierra 2500HD 3500HD 6.6L Duramax\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTube-Fin Intercooler Key Features\u003c\/h2\u003e\n\u003cul class=\"ng-star-inserted\"\u003e\n\u003cli class=\"ng-star-inserted\"\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eRadiator-Friendly \"Slim\" Design\u003c\/span\u003e\u003c\/strong\u003e\u003cbr class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eThe Duramax LLY is notorious for overheating while towing. Installing an overly thick intercooler often makes this problem worse by blocking the radiator. Our 40mm Tube-Fin core is designed to be \"transparent\" to airflow, ensuring your engine fan and radiator get the cool air they need to prevent coolant temperature spikes.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ng-star-inserted\"\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003ePermanent Leak Fix\u003c\/span\u003e\u003c\/strong\u003e\u003cbr class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eThe stock intercooler uses plastic tanks crimped to the core, which weaken and leak over 20+ years of service. Boost leaks cause high EGTs and power loss. The SPELAB unit features\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003esolid aluminum end tanks welded to the core\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"ng-star-inserted\"\u003e, providing a leak-proof seal that will outlast the truck.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ng-star-inserted\"\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eFast Heat Shedding\u003c\/span\u003e\u003c\/strong\u003e\u003cbr class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eTube-Fin construction excels at shedding heat quickly. In stop-and-go traffic or variable load driving, this core recovers from heat soak much faster than heavy bar-and-plate units, keeping your intake temps consistent.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ng-star-inserted\"\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cstrong class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eDirect Fit Restoration\u003c\/span\u003e\u003c\/strong\u003e\u003cbr class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eDesigned as a direct drop-in replacement. It fits perfectly in the stock location without modification, making it the ideal choice for truck owners looking to refresh their aging cooling system with upgraded materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 153.156px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd style=\"width: 33.574%; height: 35.5938px;\"\u003e\n\u003cp\u003eCore Thickness (Tube-Fin)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 66.065%; height: 35.5938px;\"\u003e40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.574%; height: 19.5938px;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"width: 66.065%; height: 19.5938px;\"\u003eFull aluminum alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.574%; height: 19.5938px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"width: 66.065%; height: 19.5938px;\"\u003e12.76 kg (28.1 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.574%; height: 19.5938px;\"\u003ePackage Dimensions\u003c\/td\u003e\n\u003ctd style=\"width: 66.065%; height: 19.5938px;\"\u003e120.5 × 25.5 × 66 cm (47.4\" × 10.0\" × 25.9\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.574%; height: 19.5938px;\"\u003eInstallation\u003c\/td\u003e\n\u003ctd style=\"width: 66.065%; height: 19.5938px;\"\u003e\u003cspan\u003eDirect Bolt-On\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e---tab FAQ---\u003c\/p\u003e\n\u003ch2\u003eLB7\/LLY Duramax Tube-Fin Intercooler FAQs\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why is the core 40mm thick?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e We maintained a slim profile to ensure maximum airflow reaches the radiator. This is crucial for the 2001-2005 Duramax trucks, which are prone to running hot if the cooling stack is obstructed by a thick aftermarket intercooler.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this fix my boost leak?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e If your leak is coming from the factory plastic end tanks (a very common issue), yes. Our all-aluminum welded design permanently eliminates the risk of tank separation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this an upgrade over stock?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, in terms of Reliability. While it flows similarly to stock, the switch from plastic-crimped to welded aluminum makes it significantly more durable and capable of holding boost pressure without leaking.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Should I buy the Bar-and-Plate version instead?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e If you have a highly modified truck (larger turbos, built engine) and need maximum charge cooling regardless of radiator airflow, consider the Bar-and-Plate. For daily driving, towing, and keeping engine water temps low, this Tube-Fin model is the safer, smarter choice.\u003c\/p\u003e\n\u003cp\u003e---tab Shipping \u0026amp; Returns---\u003c\/p\u003e\n\u003cdiv class=\"policy-container\"\u003e\n\u003cdiv class=\"policy-item\"\u003e\n\u003ch3\u003eFast Shipping Policy\u003c\/h3\u003e\n\u003cp\u003eYour order will be dispatched within \u003cstrong\u003e1-2 business days\u003c\/strong\u003e, and the package will arrive within your order's estimated date. \u003ca href=\"https:\/\/www.spelabautoparts.com\/pages\/shipping-policy\"\u003eClick for Shipping Policy\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"policy-item\"\u003e\n\u003ch3\u003eEasy Return Policy\u003c\/h3\u003e\n\u003cp\u003eEvery order comes with a \u003cstrong\u003e14-day free return\u003c\/strong\u003e, which means you don't have to pay for a return slip. \u003ca href=\"https:\/\/www.spelabautoparts.com\/pages\/refund-policy\"\u003eClick for Return Policy\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SPELAB","offers":[{"title":"Default Title","offer_id":52623989080376,"sku":"SPCS08014SR","price":439.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1006\/3069\/2152\/files\/01_1_05d4d571-2777-4579-bfba-28a9c5e2af07.jpg?v=1783575848","url":"https:\/\/bsdptuning.com\/products\/upgrade-all-aluminum-tube-fin-intercooler-for-2001-2005-lly-lb7-chevrolet-gmc-sierra-2500hd-3500hd-6-6l-duramax-spelab","provider":"BSDP Tuning","version":"1.0","type":"link"}