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  • Steering parts including a black steering gear, hose, metal brackets, hardware and PSC 715 bottles on a white background.
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BIG BORE XD® Cylinder Assist® Kit - RAM 2500 / 3500 (2014-2024) - Bolt-On Installation

BIG BORE XD® Cylinder Assist® Kit - RAM 2500 / 3500 (2014-2024) - Bolt-On Installation

$1,965.00
$1,965.00
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Part Number: SK858

If you’ve got a late-model RAM 2500 or 3500 and you’re tired of fighting the wheel with big tires or heavy loads, this kit is the answer. Our BIG BORE XD Bolt-On Cylinder Assist Kit gives your truck the extra steering muscle it needs without the hassle of welding. Just bolt it on and go.

This setup is built tough with PSC’s XDR Steering Gear featuring our high-flow spool valve for smooth, responsive steering. The 1.5" assist cylinder takes the strain off your gear and doubles as the ultimate steering stabilizer. We’ve even pre-assembled the hoses and fittings so you can get it installed quick and easy. Everything you need is in the box—just add PSC 715 fluid and hit the road or trail.

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About:About:

Why you’ll love it

  • Bolt-On Convenience. No welding, no headaches—just a clean install.
  • Serious Steering Power. Handles big tires and heavy loads like a champ.
  • Ultimate Steering Stabilizer. That assist cylinder does double duty.
  • Complete Kit. All the brackets, hoses, and hardware you need.

Tech InfoTech Info

Heads‑up for installers

  • Fits 2014–2024 RAM 2500/3500 4WD trucks without Lane Sense®.
  • Use PSC 715 fluid for best performance and long life.
  • A fluid cooler is highly recommended for hard-working trucks.

Fitment

RAM 2500 / 3500 4WD (2014–2024)
Excludes: Lane Sense® equipped trucks

Specs

  • Steering Gear: XDR with PSC High-Flow Spool Valve
  • Assist Cylinder: 1.5" ID, doubles as steering stabilizer
  • Hoses: Fully assembled for quick install
  • Recommended Fluid: PSC 715
  • Install Type: Bolt-On

What’s included

SupportSupport

Installation Video

Installation Video Thumbnail

Overall rating: 5.0 / 5 from 1 reviews.

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Reviews

Amazing!

"1000% would and do recommend to any and everyone! Steers better than new, even with aired down 37's!"

— Teddy D. (5/5)

Q&A

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