Product Description
The PSC SK689R36JP3-8.0W-1.625 Cylinder Assist Steering Kit is the ultimate steering upgrade for 2020+ Jeep Gladiator JT and 2018+ Jeep Wrangler JL / JLU equipped with the 3.6L Pentastar Non-eTorque engine. This complete system replaces the factory electro-hydraulic steering setup with PSC’s proven Big Bore XD hydraulic steering gearbox and high-flow mechanical pump conversion, dramatically improving steering strength, reliability, and control when running oversized tires and heavy-duty aftermarket axles. Designed specifically for vehicles running aftermarket front axles with 8.0-inch lock-to-lock steering travel, this weld-on cylinder assist system features a heavy-duty hydraulic assist ram and a 1.625-inch tie rod clamp for compatibility with larger tie rod steering systems. The system increases steering torque output, reduces steering wheel play, and prevents overheating issues commonly found in factory electro-hydraulic steering systems. This kit is engineered for serious off-road use and is ideal for builds running 35-37 inch tires, upgraded axles such as Dana 60 assemblies, and rock crawling or high-load steering environments. The included high-flow pump conversion and fluid cooler ensure reliable steering performance even under extreme conditions.
Fitment
- 2020+ Jeep Gladiator JT – 3.6L Pentastar Non-eTorque
- 2018+ Jeep Wrangler JL
- 2018+ Jeep Wrangler JLU Unlimited
- Vehicles equipped with aftermarket front axles
- Designed for 8.0 inch lock-to-lock steering travel
- Compatible with 1.625 inch tie rod diameter steering systems
Specifications for psc SK689R36JP3-8.0W-1.625
| Specification | Details |
|---|---|
| Manufacturer | PSC Motorsports |
| Part Number | SK689R36JP3-8.0W-1.625 |
| UPC | 687927188945 |
| GTIN | 687927188945 |
| Cylinder Stroke | 8.0 Inch |
| Tie Rod Clamp Size | 1.625 Inch |
| Installation Type | Weld-On Hydraulic Assist |
| Steering Gear | PSC Big Bore XD Steering Gearbox |
| Included Components | Steering Gearbox, Assist Cylinder, Pump Conversion Kit, Reservoir Kit, Hoses, Cooler, Tie Rod Clamp |
| Shipping Info | Ships directly from PSC Motorsports |
| 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 steering kit adds a hydraulic steering ram that helps move the steering linkage. This dramatically reduces steering effort when running oversized tires, aftermarket axles, and heavy off-road loads.
Why upgrade to PSC Big Bore XD steering?
PSC Big Bore XD steering gearboxes feature a larger piston and increased torque output compared to factory Jeep steering gearboxes, allowing the system to turn large tires and heavy steering systems more easily.
Does this kit replace the factory electro-hydraulic steering pump?
Yes. This kit converts the factory electro-hydraulic steering system to a traditional belt-driven high-flow power steering pump for improved durability and steering performance.
Is this kit required for larger tires?
While not required, vehicles running 35-37 inch tires, heavy beadlocks, or aftermarket axles benefit greatly from hydraulic assist steering to reduce steering stress and improve control.
Does installation require welding?
Yes. The steering assist cylinder mounts using weld-on tabs designed for aftermarket axle housings.
