Product Description
The PSC SK689R36JP2-8.0W-1.375 Cylinder Assist Steering Kit is a complete hydraulic steering solution engineered specifically for the 2018-2020 Jeep Wrangler JL equipped with the 3.6L Pentastar Non-ETorque engine. Built around PSC’s proven Big Bore XD steering gearbox, this system dramatically increases steering torque and control when running oversized tires, aftermarket axles, and extreme off-road setups. PSC designed this kit to eliminate the common weaknesses of the factory JL steering system. The kit replaces the stock electro-hydraulic pump with a reliable belt-driven mechanical power steering pump, improving cooling and reliability during extended off-road driving. An 8.0-inch stroke hydraulic assist cylinder works in conjunction with the upgraded steering gear to reduce steering effort while protecting the steering box and frame from excessive load. This weld-on kit is designed for vehicles equipped with aftermarket front axles with 8.0” lock-to-lock steering travel and a 1.375” tie rod diameter. The hydraulic assist cylinder provides additional steering force while also functioning as a dynamic stabilizer for improved control on rough terrain. For Jeep owners running 37-inch tires, locking differentials, or heavy trail setups, the PSC SK689R36JP2 steering system delivers the torque, durability, and reliability required for extreme off-road performance.
Fitment
- 2018 Jeep Wrangler JL 3.6L Pentastar – Non-ETorque
- 2019 Jeep Wrangler JL 3.6L Pentastar – Non-ETorque
- 2020 Jeep Wrangler JL 3.6L Pentastar – Non-ETorque
- Wrangler JL 2-Door
- Wrangler JL Unlimited 4-Door
- Vehicles equipped with aftermarket front axles (8.0" lock-to-lock)
- Requires 1.375" diameter tie rod
Specifications for psc SK689R36JP2-8.0W-1.375
| Specification | Details |
|---|---|
| Manufacturer | PSC Motorsports |
| Part Number | SK689R36JP2-8.0W-1.375 |
| UPC | 687927188792 |
| GTIN | 687927188792 |
| Steering System Type | Hydraulic Cylinder Assist Steering Kit |
| Steering Gear | PSC Big Bore XD Steering Gearbox |
| Assist Cylinder Stroke | 8.0 Inch |
| Tie Rod Clamp Size | 1.375 Inch |
| Pump Type | Mechanical Belt-Driven Pump Conversion |
| Kit Contents | Steering Gear, Hydraulic Cylinder, Pump Kit, Hoses, Cooler, Reservoir, Hardware |
| Shipping Info | Free Shipping Available (varies by retailer) |
| 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 on the Jeep JL?
The factory JL steering system struggles with large tires and aggressive off-road use. This PSC hydraulic assist system significantly increases steering torque and eliminates excessive steering play.
Does this kit replace the factory electric steering pump?
Yes. The kit includes a belt-driven mechanical pump conversion that improves reliability and prevents overheating under heavy steering loads.
What tire size benefits most from this steering kit?
This system is commonly installed on Jeep JL builds running 37-inch or larger tires, aftermarket axles, and locking differentials.
Does the kit include everything required for installation?
Yes. The kit includes the Big Bore XD steering gearbox, hydraulic assist cylinder, pump kit, hoses, cooler, reservoir, fittings, and hardware required for installation.
Is welding required for installation?
Yes. This version of the kit uses weld-on axle tabs designed for aftermarket axles and high-strength steering setups.
