ACDelco 19434580 Turbocharger Assembly for 2011-2016 GM 6.6L Duramax LML

The ACDelco 19434580 is a genuine GM OEM turbocharger assembly designed for 2011-2016 Chevrolet Silverado and GMC Sierra 2500HD/3500HD trucks equipped with the 6.6L Duramax LML diesel engine. This complete turbocharger assembly features variable-vane geometry technology (VNT) that automatically adjusts boost pressure and exhaust backpressure for optimal performance across all engine speeds.

Key Features:

• Genuine GM OEM turbocharger manufactured by Garrett to exact factory specifications
• Variable-geometry turbocharger with electronically controlled vanes for enhanced performance
• Complete turbocharger assembly ready for installation
• Designed to deliver more power with lower exhaust emissions
• Direct replacement for GM part numbers 12635167, 12637721, 12642129, 12642314, and 12677684
• Also cross-references to Garrett part numbers 848212-9002S and 800799 series

This turbocharger is an essential component of the Duramax LML engine system, which produces up to 397 horsepower and 765 lb-ft of torque. The variable-nozzle technology allows the turbo to spool quickly for responsive low-end power while opening up for maximum flow at higher RPMs. Professional installation is recommended, and it's important to replace all turbocharger-related gaskets, seals, and oil supply lines during installation to prevent premature failure.

Note: This is a core charge item. The original turbocharger core must be returned for refund of the core charge.