ACDelco 19420677 GM Original Equipment Power Steering Pump with Reservoir

The ACDelco 19420677 is a GM Original Equipment power steering pump with integrated reservoir designed for 2001-2010 GM vehicles equipped with 6.6L Duramax diesel engines (LB7, LLY, LBZ, LMM). This OE replacement pump generates the hydraulic pressure necessary for power-assisted steering operation in heavy-duty Chevrolet Silverado and GMC Sierra trucks.

Key Features:

• Cast iron housing construction for durability and heat dissipation
• Integrated reservoir included for simplified installation
• Press-on pulley attachment type (pulley not included)
• Single threaded outlet connection
• Manufactured to GM OE specifications for fit, form, and function
• Designed, engineered, and tested by General Motors
• Replaces GM part number 19319923
• Cross-reference: ACDelco 36P1397

This genuine GM power steering pump delivers the same performance, reliability, and service life as the original factory component. Backed by ACDelco's quality standards and designed specifically for GM heavy-duty truck applications, this pump ensures proper hydraulic pressure and steering assist functionality.