Product Description
The PSC SK689R36JP3-OE Cylinder Assist Steering Kit is a complete steering upgrade designed specifically for Jeep Gladiator JT and Wrangler JL 3.6L Non-eTorque models equipped with factory OE axles and tie rods. Built around PSC’s legendary Big Bore XD steering gearbox, this system dramatically improves steering control, torque output, and durability for Jeeps running oversized tires or aggressive off-road setups. Modern JL and JT platforms use electro-hydraulic steering systems that often struggle with larger tires, heavy accessories, and extreme off-road conditions. PSC replaces the factory system with a high-flow belt-driven mechanical power steering pump and hydraulic assist steering cylinder, delivering consistent steering pressure and improved steering response under load. The integrated hydraulic assist cylinder helps share the steering load between the gearbox and steering linkage, reducing stress on the steering box and frame mounts while improving turning capability when larger tires and locking differentials are used. Whether you're tackling rock crawling trails, overlanding routes, or daily driving with heavy off-road equipment, the PSC SK689R36JP3-OE system delivers precise, predictable steering performance.
Fitment
- 2018-Current Jeep Wrangler JL / JLU
- 2020-Current Jeep Gladiator JT
- 3.6L Pentastar Engine
- Non-eTorque Models Only
- Factory OE Front Axle and Tie Rod
Kit Includes
- PSC Big Bore XD Steering Gearbox
- Hydraulic Steering Assist Cylinder
- High Flow Mechanical Power Steering Pump
- Remote Reservoir Kit
- High Pressure Hose Kit
- Return Line Kit
- Steering Fluid Cooler
- SWEPCO Power Steering Fluid
- Mounting Hardware and Fittings
Specifications for psc SK689R36JP3-OE
| Specification | Details |
|---|---|
| Manufacturer | PSC Motorsports |
| Part Number | SK689R36JP3-OE |
| UPC | 687927187726 |
| GTIN | 687927187726 |
| Steering System | Hydraulic Cylinder Assist Steering |
| Steering Gearbox | PSC Big Bore XD Steering Gear |
| Pump Type | Belt-Driven High Flow Pump |
| Shipping Info | Ships directly from manufacturer |
| Prop 65 | WARNING: Cancer and Reproductive Harm – https://www.P65Warnings.ca.gov |
Frequently Asked Questions
What problem does the PSC cylinder assist steering kit solve?
Factory Jeep JL and JT steering systems often struggle with larger tires and heavy off-road accessories. The PSC hydraulic assist system dramatically improves steering torque, stability, and control when running larger tire setups.
Is this kit compatible with factory axles?
Yes. The SK689R36JP3-OE kit is specifically engineered for Jeeps running factory OE axles and tie rods.
Does this kit replace the factory steering pump?
Yes. PSC converts the factory electro-hydraulic steering system to a traditional belt-driven high-flow mechanical pump for improved reliability and steering performance.
What tire sizes benefit from this upgrade?
Most vehicles running 35-inch to 40-inch tires see significant steering improvements when using PSC hydraulic assist steering systems.
Is this system suitable for daily driving?
Yes. PSC cylinder assist systems are widely used on daily driven Jeeps, overlanding rigs, and extreme off-road builds thanks to their improved steering feel and durability.
