PSC Cylinder Assist™ Steering Kit SK689R20JP1‑6.75W‑1.5 – Jeep JL 2.0L Turbo (Non‑eTorque) | 6.75″ Stroke | 1.5″ Tie Rod Clamp

The PSC SK689R20JP1‑6.75W‑1.5 Cylinder Assist™ Steering Kit is engineered for Jeep JL owners running a 2.0L Turbo engine (non‑eTorque) with aftermarket front axles and a 1.5″ OD tie rod—such as Currie HD60 or custom setups. Built for strength, stability, and performance, this kit transforms your JL into a steering powerhouse with greater control, less driver fatigue, and peace of mind when running 35″+ tires and lockers.

This comprehensive kit replaces the factory Electric Hydraulic Power Steering (EHPS) with a proven mechanical pump system and a Big Bore XD steering gearbox. It also includes a 6.75″ stroke assist cylinder and a 1.5″ tie rod clamp for secure, accurate mounting.

Kit Includes:

• Big Bore XD Gearbox (SG689R) – PSC’s upgraded 80mm piston gearbox for increased steering torque and durability.

• Hydraulic Cylinder (CAK689R-6.75W) – 6.75″ stroke ram that matches the steering arc of most aftermarket axles.

• 1.5″ Tie Rod Clamp (TRCL1.5) – Clamp mounts cylinder to your 1.5″ OD tie rod—no welding needed.

• High-Performance Mechanical Pump Kit (PK20JP1) – Belt-driven pump, reservoir, fluid cooler, fittings, hoses, and pitman arm.

• Weld-on Axle Tabs – For secure, customizable cylinder mounting on non-OE axles.

• All Mounting Hardware & SWEPCO 715 Power Steering Fluid

Key Features:

• Designed for aftermarket HD axles—not compatible with stock tie rod.

• Eliminates common EHPS issues in technical terrain and high-heat environments.

• Provides 35%+ more torque through the steering system for extreme off-road use.

• Made in the USA with premium components trusted by Ultra4, rock crawling, and expedition rigs.

Application Notes:

• For 2020+ Jeep JL 2.0L Turbo (non‑eTorque) only.

• Requires disabling the EHPS system (Tazer JL or similar recommended).

• For best results with a Synergy MFG track bar brace, use PSC hardware kit HWK-689-PP.