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  • PSC steering gear, steering cylinder, pump, PSC 8061 fluid, mounting brackets and hardware on a white background.
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Cylinder Assist® EHPS Steering Kit - Jeep Wrangler JL Rubicon 392 HEMI (2021+)

Cylinder Assist® EHPS Steering Kit - Jeep Wrangler JL Rubicon 392 HEMI (2021+)

$3,569.49
$3,569.49
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Part Number: SK691RPK3-7.5W-1.75

Tie Rod Type
Axle Stroke
Tie Rod Clamp Size

Got a JL 392 with big tires? You already know the factory steering isn’t built for that kind of load. PSC’s Cylinder Assist EHPS Steering Kit fixes that. This system is engineered to handle the torque of the HEMI and the weight of oversized tires—on the trail, on the street, and everywhere in between.

Each kit includes everything you need for a clean, reliable install: our specially valved XD Steering Gear with PSC’s High Flow Tower, an Electric Hydraulic Power Steering (EHPS) pump system for consistent assist, a high-capacity remote reservoir, high-flow heat sink cooler, anti-splash valve, and PSC 715 High-Performance Power Steering Fluid. Plus, you choose the cylinder stroke and tie rod clamp size to match your axle setup.

This is the ultimate steering upgrade for your JL Rubicon 392—smooth, predictable, and built to take abuse.

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About:About:

Why you’ll love it

  • Turn Big Tires with Ease – No more arm wrestling your steering wheel on the trail.
  • Built for the 392 – Designed specifically for the JL Rubicon 392 HEMI platform.
  • Complete Solution – Everything you need in one box, engineered to work together.

Heads‑up for installers

  • You’ll need to bleed the EHPS system properly—don’t skip this step.
  • Make sure you’ve got clearance for the cylinder on your axle setup.
  • Recommended fluid: High Performance Electric Power Steering Fluid (don’t cheap out here).The larger XD steering gear may not clear some aftermarket track bars

Ideal for

JL Rubicon 392 owners running big tires (37”–42”)

Fitment

  • Vehicle: Jeep Wrangler JL Rubicon 392 HEMI
  • Years: 2021+
  • Axle: Aftermarket Front Axle
  • Tie Rod Clamp Options: 1-1/4", 1-3/8", 1-1/2", 1-5/8", 1-3/4", 2.0", or No Clamp

What’s included

  • Box 1: XDR Cylinder Assist Steering Gear Box
  • Box 2: High Flow XD Pump Kit
  • Box 3: Cylinder Assist Axle Kit (choose stroke length)
  • Box 4: Tie Rod Clamp (choose size)
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