PSC Jeep Wrangler JK Full Hydraulic Steering Kit 2007-2018
FHK400JK
The PSC Jeep Wrangler JK Full Hydraulic Steering Kit 2007-2018 converts a Wrangler JK build to full hydraulic steering for dedicated rock crawling and competition use with large tires. PSC lists the system for 40–46-inch tires, pairing a 160cc orbital accessory package with a high-flow pump and a large double-ended steering cylinder.
Choose FHK400JK for the 2007–2011 3.8L engine or FHK400JK-1 for the 2012–2018 3.6L engine. Both use the FHA160-J accessory kit and SC2227K1 cylinder with a 2.75-inch bore and 8 inches of stroke, while the pump package changes with the engine. The cylinder and links require axle-specific installation and travel checks. Plan cooling, reservoir placement, and protected hose routing around the complete suspension and accessory-drive layout rather than treating the conversion as a pump-only upgrade.
Includes:
- FHA160-J 160cc full hydraulic accessory kit
- PK38JP1-FH pump kit for 3.8L OR PK36JP1-FH for 3.6L
- SC2227K1 double-ended cylinder
- Hoses, fittings, brackets, clevis joints, and tie rod link kit
Specifications
| Manufacturer | PSC Motorsports |
|---|---|
| Part number(s) | FHK400JK, FHK400JK-1 |
| Cylinder | 2.75-inch bore x 8-inch stroke, double-ended |
| Orbital displacement | 160cc |
| PSC tire application | 40-46 inches |
| JK Model | 2007-2011 (3.8L) = FHK400JK; 2012-2018 (3.6L) = FHK400JK-1 |
| Product Type | Full Hydraulic Steering Kit |
| Primary Application | 40–46-inch-tire JK crawlers; Dedicated off-road JK steering conversions; Competition and custom-axle builds |
Fitment
| Jeep Wrangler JK 3.8L | 2007-2011 |
|---|---|
| Jeep Wrangler JK 3.6L | 2012-2018 |
The pump selection is engine-specific. A fluid cooler is recommended by PSC.
Common Applications:
- 40–46-inch-tire JK crawlers
- Dedicated off-road JK steering conversions
- Competition and custom-axle builds
Fitment Notes:
- Verify mounting clearances, hose routing, and steering travel with the complete axle and suspension configuration.
- Keep hydraulic hoses clear of exhaust heat, moving components, sharp edges, and pinch points.
- Follow PSC instructions for fluid selection, system preparation, and bleeding before applying steering loads.
FAQs
Which JK option should I choose?
FHK400JK pairs the kit with PK38JP1-FH for the 2007–2011 3.8L. FHK400JK-1 uses PK36JP1-FH for the 2012–2018 3.6L. Select by the installed engine and accessory drive.
What is this kit designed to be used for?
Converts a Wrangler JK build to full hydraulic steering for dedicated rock crawling and competition use with large tires. PSC lists the system for 40–46-inch tires, pairing a 160cc orbital accessory package with a high-flow pump and a large double-ended steering cylinder.
What installation checks matter most?
Verify mounting clearances, hose routing, and steering travel with the complete axle and suspension configuration. Keep hydraulic hoses clear of exhaust heat, moving components, sharp edges, and pinch points.
What is included with this SKU?
The Includes section identifies the listed package contents. Where options are offered, choose the matching model year or steering system; do not assume components listed for a different SKU are supplied.
How should the hydraulic system be prepared?
Follow PSC’s installation procedure for system flushing, approved fluid, and thorough bleeding. Confirm hose connections and inspect for leaks before loading the steering system.
Why does steering fluid cooling matter on the trail?
Repeated high-load steering inputs generate heat in the hydraulic circuit. Install the supplied cooler where specified, or plan suitable cooling according to PSC’s recommendations for the complete system.