2001-2004 GM Duramax 6.6L LB7 Turbo Upgrades

The turbocharger on your 2001-2004 GM 6.6L Duramax LB7 works great for basic everyday applications, but you can start to feel it's limitations during more heavy-duty applications like towing or hardcore off-roading. Choose from an upgraded turbocharger to unleash more power in your engine, or pick up a factory replacement to help your truck last longer overall. Here at Alligator Performance, we only work with trusted and reliable brands to ensure these turbochargers are built to meet and/or exceed OEM quality for consistent and reliable performance. Take your diesel engine to the next level with a premium replacement turbocharger for your GM Sierra/Silverado 2500/3500's custom build. GM Duramax Fitments: 2001, 2002, 2003, 2004 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.