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XD Series Power Steering Pump – 6.6L Duramax Hydro-Boost – PSC Certified Refurbished

XD Series Power Steering Pump – 6.6L Duramax Hydro-Boost – PSC Certified Refurbished

$250.00
$325.00 $250.00
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Part Number: SD-SP1404

The PSC XD Series power steering pump is built to deliver stronger, more consistent steering assist for 6.6L Duramax trucks running hydro-boost brakes. It’s designed to improve flow at low RPM and maintain steady pressure under load, so the steering stays predictable when the truck’s working—whether that’s bigger tires, added weight, or slow-speed maneuvering.

This unit is offered as a PSC Certified Refurbished pump. Each pump has been inspected, rebuilt where needed, and tested to meet our performance standards. It may show minor cosmetic wear from prior use or handling, but it’s fully functional and built to perform as intended.

If your stock pump is starting to fall behind once you’ve added tire and load, this is a solid step up that keeps the steering responsive without overworking the system.

All refurbished unit sales are final.

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About:About:

Why you’ll love it

  • 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

Tech InfoTech Info

Heads‑up for installers

  • 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

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

Ideal for

  • Improving steering response under heavy loads
  • Tow trucks, work trucks, and daily drivers

Specs

  • 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

What’s included

SP1404-Complete High Performance Pump without pulley

SupportSupport

OEM Cross Reference

  • Direct Replacement for AC Delco GM19420690
California Prop 65 Warning

California Prop 65 Warning

This product can expose you to chemicals including lead and di (2-ethylhexyl) phthalate, which are known to the State of California to cause cancer, birth defects or other reproductive harm.

For more information, go to www.P65Warnings.ca.gov