Steering and Components Power Steering and Components

PSC Motorsports

21C WRANGLER 6.4L HEMI ENGINE STEERING KIT WITH BIG BORE XD STEERING GEAR

$3,590.00

SKU: P02B SK689R64JP1-6.75W-1.75

In Stock
In Stock
Ships by Jun 11
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The PSC Motorsports Big Bore XD Cylinder Assist Steering Kit is an essential upgrade designed to address factory steering performance issues and handle increased torque loads associated with larger tire sizes and aftermarket axle assemblies in Jeep Wrangler JL models. This kit replaces the original computer-controlled electro-hydraulic steering (EHPS) system with PSC's proprietary Big Bore XD-JL Steering Gearbox and a traditional belt-driven High Flow Mechanical Power Steering Pump Conversion. It is specifically designed for the 2021-Newer Jeep Wrangler JL Rubicon 392 HEMI with a 6.75” Stroke Front Axle and a 1.75” Tie Rod Clamp. The kit comes fully assembled with hoses and fittings for straightforward installation and and PSC 715 High-Performance Power Steering Fluid. It is important to note that the larger size of the BIG BORE XD-JL Steering Gearbox may restrict the use of certain aftermarket track bars.

Fitment

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Specifications

BrandPSC Motorsports
Part NumberP02B SK689R64JP1-6.75W-1.75

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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