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  • PSC steering gear, PSC 715 Power Steering Fluid, tie rod clamp with a steering cylinder, hoses and mounts on a white background.
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BIG BORE XD® Cylinder Assist® Steering Kit – Ford F-250/F-350 Super Duty (2007–2022)

BIG BORE XD® Cylinder Assist® Steering Kit – Ford F-250/F-350 Super Duty (2007–2022)

$1,920.00
$1,920.00
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Part Number: SK754-OE

Vehicle/Model Year

When your Super Duty’s steering feels weak under big tires or heavy loads, PSC’s BIG BORE XD Cylinder Assist Kit is the fix. This complete system replaces the factory setup with heavy-duty components designed for serious steering performance.

Each kit includes our XD Cylinder Assist Steering Gear, PSC Cylinder Assist axle mount kit, and PSC 715 high-performance fluid—plus all hoses, brackets, and hardware for a clean, bolt-on install. No guesswork, no piecing parts together. Just everything you need to steer with confidence.

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About:About:

Why you’ll love it

  • All-new components—nothing re-manufactured
  • BIG BORE XD gear for strength and smooth steering
  • PSC Cylinder Assist reduces stress on the steering gear
  • Includes PSC 715 fluid for top performance
  • Complete kit engineered for bolt-on installation

Tech InfoTech Info

Heads‑up for installers

  • Fits Ford F-250/F-350 Super Duty (2007–2022)
  • Check production year for correct kit (2007–2010 vs. 2011–2025)
  • May not clear custom or aftermarket axle covers
  • Torque to spec—don’t over-tighten

Fitment

Ford F-250/F-350 Super Duty

  • 10/2007–2010 (SKU SK754-OE)
  • 2011–2025 (SKU SK755-OE)

Use it with

  • PSC High-Performance Pumps
  • PSC Steering Stabilizers
  • PSC 715 Fluid (included in kit)

Ideal for

  • Trucks with oversized tires or towing heavy loads
  • Worn-out factory steering systems
  • Builders who want a complete, bolt-on solution

Specs

  • XD Cylinder Assist Steering Gear
  • Cylinder Assist Axle Mount Kit
  • PSC 715 Fluid (4-pack)
  • All hoses, brackets, and hardware included

What’s included

  • Steering gear
  • Axle mount kit
  • PSC 715 fluid
  • Hose kit
  • Brackets and hardware

SupportSupport

Install Instructions

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