Product Description
Upgrade the steering performance of your Duramax with the PSC SP1404 High Performance Power Steering Pump, engineered specifically for 2001-2010 GM 6.6L Duramax trucks equipped with hydroboost braking systems. This high-flow Saginaw P-Series pump delivers significantly improved fluid displacement at low RPM, giving drivers stronger steering assist when maneuvering large tires, heavy trucks, and off-road builds. Unlike remanufactured factory pumps, the PSC SP1404 is a brand-new performance unit featuring a larger internal ring and rotor assembly that moves more fluid per revolution. The result is smoother steering, improved hydroboost brake response, and more consistent assist under load. Whether you're towing, running oversized tires, or building a hydraulic steering assist setup, this pump provides the reliability and pressure needed to keep steering predictable and controlled. The pump is designed as a direct replacement for the factory power steering pump and maintains the OEM reservoir layout while delivering significantly higher flow at low engine speeds. This makes it an ideal upgrade for trucks with lifted suspensions, oversized tires, or hydraulic steering assist systems.
Fitment
- 2001-2004 GM Silverado / Sierra 2500HD & 3500HD – 6.6L Duramax LB7
- 2004.5-2005 GM Silverado / Sierra 2500HD & 3500HD – 6.6L Duramax LLY
- 2006-2007 GM Silverado / Sierra 2500HD & 3500HD – 6.6L Duramax LBZ
- 2007.5-2010 GM Silverado / Sierra 2500HD & 3500HD – 6.6L Duramax LMM
- Vehicles equipped with Hydroboost braking systems
- Also commonly used in custom Duramax or LS engine swap projects using hydroboost brakes
Specifications for PSC SP1404
| Specification | Details |
|---|---|
| Manufacturer | PSC Steering Components |
| Part Number | SP1404 |
| Pump Model | Saginaw P-Series (High Flow) |
| Pressure Rating | 1600-1800 PSI |
| Reservoir | OEM-style integral reservoir with cap |
| Pulley Included | No – reuses factory press-fit pulley |
| Inlet Ports | Two (2) |
| Outlet Port | 16mm x 1.0 |
| UPC | 687927179714 |
| GTIN | 687927179714 |
| Shipping Info | Calculated at checkout |
| Prop 65 | WARNING: Cancer and Reproductive Harm – https://www.P65Warnings.ca.gov |
Frequently Asked Questions
What does the PSC SP1404 pump improve over the factory pump?
The SP1404 uses a larger internal ring and rotor to move more hydraulic fluid per revolution, increasing steering assist at low RPM and improving hydroboost braking performance.
Does this pump work with hydroboost braking systems?
Yes. The SP1404 is specifically designed for Duramax trucks equipped with hydroboost braking systems and maintains proper pressure for both steering and brake assist.
Is the PSC SP1404 a direct replacement?
Yes. It bolts in place of the factory power steering pump and retains the OEM reservoir design while delivering higher performance.
Do I need to replace the pulley?
No. The pump reuses the factory press-fit pulley. However, many installers replace the pulley during installation if the original pulley shows wear.
Is this pump good for trucks with large tires?
Yes. The increased flow and pressure capability make it ideal for trucks running oversized tires, steering upgrades, or hydraulic steering assist systems.
