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  • SG753R - black coated steering gear with a white background.
  • Front-mounted view of the BIG BORE XD Cylinder Assist Steering Gear illustrating the output shaft alignment and durable black finish for Ford Super Duty applications.
  • Angled side view of the Big Bore XD® Cylinder Assist® Steering Gear highlighting the precision-machined housing, sector shaft and hydraulic assist ports on a white background.
  • Side profile of the Big Bore XD® Cylinder Assist® Steering Gear for 2005–2009 Ford F-250 and F-350 models showing high-pressure hydraulic housing and bolt assembly.
  • Rear housing view of the Big Bore XD® Cylinder Assist® Steering Gear displaying the sealed cap, input shaft and reinforced cast construction.
  • Front view of the Big Bore XD® Cylinder Assist® Steering Gear for Ford F-250 and F-350 trucks, showing heavy-duty cast housing and machined sector shaft with nut and washer installed in a white background.
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BIG BORE XD® Cylinder Assist® Steering Gear - Ford F-250/F-350 (2005-9/2007)

BIG BORE XD® Cylinder Assist® Steering Gear - Ford F-250/F-350 (2005-9/2007)

$1,095.00
$1,095.00
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Part Number: SG753R

If you're running a 2005 to mid-2007 Ford F-250 or F-350 and upgrading to a PSC Cylinder Assist system, this is the steering gear you need. It’s built from all-new components (no reman junk here), and features a splined input shaft for direct compatibility with your factory setup.

This gear is engineered to handle oversized tires, heavy-duty use, and off-road abuse—while keeping your steering smooth, responsive, and reliable. Just make sure to check your truck’s build date if you’re working on a 2007–2008 model. You’ll find it on the placard inside the driver’s side door B-pillar.

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About:About:

Why you’ll love it

  • All-new construction—no remanufactured parts
  • Larger sector shaft and bearings for smoother steering
  • Works with OEM or aftermarket pitman arms
  • Designed specifically for PSC Cylinder Assist® systems
  • Built to handle big tires and heavy loads

Tech InfoTech Info

Heads‑up for installers

  • This gear has a splined input shaft—double-check compatibility
  • For 2007–2008 trucks, verify the production date before ordering
  • Check the placard on the driver’s side door B-pillar for build info
  • Works with factory-style pitman arms for this model range

Fitment

  • Ford F-250 / F-350 Super Duty
  • Model Years: 2005–Mid-2007
  • Input Shaft Type: Splined
  • OE Cross Reference:
    5C342504AB, 5C342504AE, 5C342504AF, 5C342504AG
    6C343504AA, 6C343504AB
    7C3Z3504A, 7C343504AB
    STG152

Specs

Input Shaft: Splined
Sector Shaft: Oversized for durability
Bearings: Upgraded for smoother feel
Compatibility: OEM and aftermarket pitman arms

What’s included

(1) Cylinder Assist® Steering Gear
(Pitman arm and assist components sold separately)

SupportSupport

OEM Cross Reference

Direct Replacement for Motorcraft:

  • 5C342504AB
  • 5C342504AE
  • 5C342504AF
  • 5C342504AG
  • 6C343504AA
  • 6C343504AB
  • 7C3Z3504A
  • 7C343504AB
  • 7C3Z3504BRM
  • STG152
  • Cardone 97-7621GB
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