Product Description
The PSC SK689R36JP3-6.75W-1.375 Cylinder Assist Steering Kit is a complete high-performance steering upgrade designed for 2020+ Jeep Gladiator JT and Jeep Wrangler JL models equipped with the 3.6L Pentastar Non-ETorque engine. Built for serious off-road enthusiasts and high-performance builds, this system transforms factory steering into a powerful hydraulic-assist setup capable of handling oversized tires, heavy axles, and extreme terrain. PSC engineered this kit around its legendary Big Bore XD steering gearbox combined with a high-flow mechanical power steering pump conversion. This design eliminates common factory steering issues including excessive steering play, pump overheating, and weak steering response under load. The included 6.75-inch stroke hydraulic assist cylinder dramatically multiplies steering force while maintaining precise control, even with locking differentials engaged and large off-road tires. Weld-on mounting tabs and a 1.375-inch tie rod clamp provide a secure installation on aftermarket axle assemblies designed for serious rock crawling or trail performance. Whether you're building a dedicated rock crawler, overland rig, or high-performance trail Jeep, the PSC SK689R36JP3 system delivers unmatched steering strength, durability, and control.
Fitment
- 2020+ Jeep Gladiator JT
- 2021+ Jeep Wrangler JL / JLU
- 3.6L Pentastar Non-ETorque engine
- Vehicles equipped with aftermarket front axle assemblies
- Designed for 6.75" lock-to-lock steering cylinder setups
- Compatible with large tire off-road builds (35"+ tires recommended)
Kit Includes
- PSC Big Bore XD Steering Gearbox
- High Flow Mechanical Power Steering Pump Conversion Kit
- 6.75" Stroke Hydraulic Assist Steering Cylinder
- Weld-On Cylinder Mount Tabs
- 1.375" Tie Rod Clamp Mount
- Hydraulic Hoses and Fittings
- Mounting Hardware
Specifications for psc SK689R36JP3-6.75W-1.375
| Specification | Details |
|---|---|
| Manufacturer | PSC Motorsports |
| Part Number | SK689R36JP3-6.75W-1.375 |
| UPC | 687927188853 |
| GTIN | 687927188853 |
| Cylinder Stroke | 6.75 Inches |
| Tie Rod Clamp Size | 1.375 Inches |
| Steering System Type | Hydraulic Cylinder Assist Steering |
| Installation | Weld-On Cylinder Mount |
| Shipping Info | Free shipping available from many PSC dealers |
| Prop 65 | WARNING: Cancer and Reproductive Harm – https://www.P65Warnings.ca.gov |
Frequently Asked Questions
What does a cylinder assist steering kit do?
A cylinder assist system uses a hydraulic ram connected to the steering linkage to multiply steering force. This dramatically reduces steering effort and improves control when running oversized tires or heavy aftermarket axles.
Why upgrade the factory Jeep JL/JT steering?
Factory steering systems struggle with large tires and aggressive off-road use. PSC steering kits replace the factory system with stronger hydraulic components designed to handle extreme steering loads.
Does this kit include everything needed for installation?
Yes. The PSC SK689R36JP3 kit includes the steering gearbox, high-flow pump conversion, hydraulic assist cylinder, hoses, fittings, weld-on mounts, and installation hardware.
Is this kit compatible with stock front axles?
This kit is intended for vehicles equipped with aftermarket front axles designed to accept hydraulic assist steering systems.
What tire sizes benefit from this steering kit?
Hydraulic assist steering systems are recommended for vehicles running large off-road tires, typically 35-inch tires or larger.
