XD Cylinder Assist® Steering Gear – Jeep Wrangler JK/JKU (2007–2018)
Can I pick up my order or have it installed at your shop?
Can I pick up my order or have it installed at your shop?
Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.
How do I know if this part fits my vehicle?
How do I know if this part fits my vehicle?
Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.
What if I need to return a product or it’s defective?
What if I need to return a product or it’s defective?
Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)
What's the lead time on custom or fabricated parts?
What's the lead time on custom or fabricated parts?
Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.
Description
Description
The SG684 Series gives you the right steering gear for your Jeep Wrangler JK or JKU—whether you're replacing a worn-out factory box or stepping up to a full Cylinder Assist® setup.
At the base level, the SG684 is a brand-new OEM-style replacement that bolts in like stock and restores proper steering feel.
For builds that need more control and strength, the SG684R Cylinder Assist® gears take it further. These units are equipped with PSC’s integrated valve housing and upgraded components to run a hydraulic assist cylinder—giving you the steering authority you need for bigger tires, tougher terrain, and real off-road use.
Available in both left-hand drive and right-hand drive configurations depending on your build.
