PSC MOTORSPORTS | BIG BORE XD® Cylinder Assist® Steering Kit | 1990-1994 Jeep Wrangler YJ 4.0L

Description
These kits are built for Jeep people who actually use their Jeeps. If you’ve got a YJ with a 4.0L and you're running lockers, big tires, or just hitting the trail hard, PSC’s Cylinder Assist Steering Kits are exactly what you need to keep control when things get gnarly.
We offer two versions—SK230 with a 6" stroke and SK231 with an 8" stroke—so you can match your setup and suspension travel. Both kits are trail-proven, bolt-on (with some welding for the ram mount), and built to handle real off-road abuse.
Application Requirements
Jeep Wrangler YJ 4.0L – 1990–1994
Available Configurations
| Manufacturer Part Number | Configuration | Instructions |
|---|---|---|
| SK230 | 6" | General PSC bleeding guide; consult product specifications |
| SK231 | 8" | General PSC bleeding guide; consult product specifications |
Fitment Table
Vehicle Fitment
Vehicle browsing collections: YJ 1987-1995
Collection year ranges are browsing groups. Use the exact year, engine, axle, body and configuration requirements below.
Application Requirements
Jeep Wrangler YJ 4.0L – 1990–1994
Available Configurations
| Manufacturer Part Number | Configuration | Instructions |
|---|---|---|
| SK230 | 6" | General PSC bleeding guide; consult product specifications |
| SK231 | 8" | General PSC bleeding guide; consult product specifications |
Warranty
PSC states that most products carry 12 months of coverage for manufacturing defects for the original purchaser. Eligibility and exclusions depend on the product and use. Racing, competition, off-road-only and non-street-legal products are excluded under PSC’s published terms. Installation-related damage and labour or incidental costs are not covered. Contact Niagara Jeeps & Trucks with proof of purchase before arranging a claim.
Shipping & Returns
Shipping & Refund Policy
Shipping:
We ship across Canada. Orders are processed within 1–2 business days. Delivery within Canada typically takes 3–10 business days depending on location and carrier. Tracking information will be provided once your order ships.
Refunds & Returns:
Returns are accepted within 30 days of delivery. Items must be unused and in original packaging. Please review our full return policy for more details.
Damaged or Incorrect Items:
If you receive a damaged or incorrect item, please contact us within 5 days of delivery. Call or text 416-624-1357 or email sales@Niagarajeeps.ca so we can resolve the issue quickly.