PSC Power Steering Pump Kits for 2001-2010 GMC 6.6L Duramax

The PSC SP1404 is a direct‑fit power steering pump built to deliver more steering assist where you actually use it—down low and under load. Designed specifically for 6.6L Duramax engines equipped with hydro‑boost brakes, this pump provides increased low‑RPM flow and a stable 1800 PSI pressure relief to help handle larger tires without overworking the system.

Features:

• Direct Replacement for AC Delco 19420690
• Larger Ring and Rotor Produce for More Flow at Lower RPMS
• 1800 PSI Pressure Relief Valve Helps Turn Larger Tires
• Designed for 6.6L Duramax Engines with Hydro-Boost Brakes
• Uses Factory Power Steering Pump Pulley
• OEM Style Reservoir and Cap

Fitment:

• 2001–2004 (LB7 Duramax): Silverado/Sierra 2500HD & 3500
• 2004.5–2005 (LLY Duramax): Silverado/Sierra 2500HD & 3500
• 2006–2007 (LBZ Duramax): Silverado/Sierra 2500HD & 3500
• 2007.5–2010 (LMM Duramax): Silverado/Sierra 2500HD & 3500

Specification:

• Larger Ring and Rotor Produce for More Flow at Lower RPMS
• 1800 PSI Pressure Relief Valve Helps Turn Larger Tires
• Designed for 6.6L Duramax Engines with Hydro-Boost Brakes
• Uses Factory Power Steering Pump Pulley
• OEM Style Reservoir and Cap

Notes:

• Direct Replacement for AC Delco GM19420690 - SP1404
• Clean all ports before threading in new fittings
• Don’t overtighten — let the fittings seat naturally
• Keep hoses away from exhaust heat and sharp edges
• Cycle the steering and brake pedal after install to move air out of the system