Description

The Garrett 848212-9001S Reman GT3788VA Turbocharger is a high-quality remanufactured turbo designed as a stock replacement for Duramax 6.6L diesel engines — including LLY, LBZ, and LMM variants — used in GM and GMC heavy-duty trucks. Built to OEM standards by Garrett, this turbocharger offers reliable performance, improved boost pressure, and increased engine efficiency. Each unit undergoes precision remanufacturing, including balanced rotating assemblies, inspected core components, and restored performance parameters that meet or exceed original specifications. The GT3788VA design ensures smooth spool-up, consistent boost delivery, and enhanced throttle response across a wide operating range. Ideal for towing, hauling, and heavy-duty applications, this reman turbo is a cost-effective solution for replacing a worn or failed turbo without sacrificing performance. Direct-fit installation with no modification required makes it ideal for DIY installs or professional service. KEY FEATURES Genuine Garrett remanufactured turbocharger Model: GT3788VA Stock replacement part: 848212-9001S Fits Duramax 6.6L diesel engines (LLY, LBZ, LMM) Restores OEM boost and performance Precision-remanufactured rotating assembly Durable construction for heavy-duty use Direct-fit installation — no modifications required Improves throttle response and fuel efficiency APPLICATION Engine: Duramax 6.6L Diesel Engine Codes: LLY , LBZ , LMM Vehicles: GM/Chevrolet Silverado & GMC Sierra 2500HD/3500HD Use Case: Towing, hauling, heavy-duty commercial and everyday driving PART NUMBERS Garrett Reman: 848212-9001S Turbo Model: GT3788VA