PSC PK40JP1 High Performance Power Steering Pump Kit, Jeep Wrangler YJ 4L (90-94)

This high-performance power steering pump kit is built for Jeep Wrangler YJ owners who want dependable steering under real use. Both versions in this group replace tired factory components with PSC parts designed to deliver steady flow, better cooling, and consistent steering feel.

Each kit includes a remote reservoir to help control fluid aeration, a heat sink cooler to manage temperature, and properly matched hose assemblies for a clean install. The only difference between kits is the pump configuration, which changes based on model year. Everything else is designed to work together as a complete system.

This is a solid upgrade for YJs that see trail time, larger tires, or just need their steering to work the way it should again.

This listing is PSC part number PK40JP1 (Vehicle | Model Year: 1991-1994 Jeep Wrangler YJ 4.0L).

Features

• Complete power steering pump kits with matched PSC components
• Improved flow and pressure compared to factory pumps
• Remote reservoir helps manage heat and aeration
• Cooling included to protect fluid and pump life
• Designed specifically for Jeep Wrangler YJ fitment

Specifications

• Part Number: PK40JP1
• Vehicle | Model Year: 1991-1994 Jeep Wrangler YJ 4.0L
• PSC high-flow power steering pumps
• Remote reservoir system for improved fluid control
• Dual-pass heat sink cooler included
• PSC 715 fluid included for proper system break-in
• Designed specifically for Jeep Wrangler YJ chassis

Installation Notes

• Ideal for: YJs running larger tires, Trail-driven Jeeps, Replacing weak or overheating factory steering pumps, Owners who want reliable steering without piecing together parts

Fitment

• Jeep Wrangler YJ
• 4.0L gas engine only
• Year coverage by SKU: 1991-1994 1995

What’s Included

PK40JP1

• High-Performance Power Steering Pump Kit - Jeep Wrangler YJ 4.0L (1991-1994) Standard hydraulic steering systems

Included Components

• SP43362SJP - High-Flow Power Steering Pump for Jeep 4.0L
• SR146 - Remote Reservoir, 8.25in OAH, Brushed Aluminum
• SRK-6-12-P - Remote Reservoir Fitting Kit, -6 AN / -12 AN AUX Plug
• SR-VT - Anti-Splash Pressure Relief Valve
• CK217 - Heat Sink Cooler Kit, Jeep Wrangler YJ (1990-1995), Dual Pass
• HA-L138 - Feed Hose Assembly, Reservoir to Pump
• MR20K - Remote Reservoir Mount
• PSC 715 Power Steering Fluid, 4-Quart Pack

PK40JP1-2

• High-Performance Power Steering Pump Kit - Jeep Wrangler YJ 4.0L (1995) Standard hydraulic steering systems

Included Components

• SP33362SJP - Jeep 4.0L High-Flow Power Steering Pump (TJ/LJ/XJ-style)
• SR146 - Remote Reservoir, 8.25in OAH, Brushed Aluminum
• SRK-6-12-P - Remote Reservoir Fitting Kit, -6 AN / -12 AN AUX Plug
• SR-VT - Anti-Splash Pressure Relief Valve
• CK217 - Heat Sink Cooler Kit, Jeep Wrangler YJ (1990-1995), Dual Pass
• HA-L138 - Feed Hose Assembly, Reservoir to Pump
• MR20K - Remote Reservoir Mount
• PSC 715 Power Steering Fluid, 4-Quart Pack
• Designed specifically around the 1995 YJ pump configuration, which differs from earlier model years.