UZ Power Steering Reservoir for High Flow Pump Systems

• Eliminates Fluid Starvation: Larger capacity reservoir prevents cavitation and fluid starvation when running a high-flow TC-style power steering pump — the #1 failure point of stock reservoirs on upgraded systems
• Correct JIC Fittings: #6 JIC side input (return) and #10 JIC bottom outlet (to pump) provide the right hydraulic flow path for aftermarket high-pressure pump installations without adapters or fabrication
• Pressure-Tested Construction: Every unit is pressure-tested prior to shipping — zero tolerance for leaks in a high-pressure steering system
• Integrated Bolt-On Bracket: Built-in mounting bracket allows direct installation in most Toyota 4x4 engine bays without custom fabrication or welding
• Machined Aluminum Construction: CNC-machined aluminum billet construction is lighter than steel reservoirs and dissipates heat more effectively — important in demanding off-road steering cycles
• Complete Kit: Ships with all mounting hardware included — bolt it in and connect your lines

Q: Why can't I just keep the stock OEM plastic Toyota power steering reservoir when I upgrade my pump?
A: The OEM Toyota power steering reservoirs are sized for the flow demand of stock pumps. When you install a high-flow TC-style aftermarket pump, the system demands significantly more fluid volume during heavy steering cycles, especially at full lock or during extended off-road use. The stock reservoir cannot supply fluid fast enough, leading to cavitation, pump noise, and accelerated pump wear. This reservoir is specifically engineered with the capacity and fitting sizes needed to properly feed a high-flow pump system.

Q: What do the #6 JIC and #10 JIC fittings mean, and will my lines connect directly?
A: JIC (Joint Industry Council) is a standardized hydraulic fitting style with a 37-degree flare seat. #6 JIC refers to a -6 AN / 9/16-18 thread fitting typically used for power steering return lines. #10 JIC is a -10 AN/7/8-14 thread fitting used for the high-volume outlet line to the pump. If your power steering lines were built for an OEM pump, you will likely need to re-terminate or adapt the lines to match JIC fittings.

Q: Is this reservoir compatible with my 1UZ-FE, 2UZ-FE, or 3UZ-FE V8 swap build?
A: Yes. This reservoir is the correct solution for UZ V8 swap builds running an aftermarket high-flow power steering pump. The UZ series V8 engines (1UZ-FE, 2UZ-FE, 3UZ-FE) are commonly swapped into 1979–1995 Toyota Pickups and 4Runners, and those builds almost universally require a steering system upgrade to handle the increased pump pressure and flow.

Q: Can I use this reservoir with the stock factory power steering pump during a 1UZ swap?
A: This reservoir is optimized for high-flow aftermarket pump systems and is the same unit included in Trail-Gear's full pump kits. If you are retaining the factory 1UZ-FE or truck power steering pump without upgrading to a high-flow unit, your OEM reservoir may be adequate depending on your application. However, for any UZ swap running a Trail-Gear PowerFlow or similar TC-style pump — which is the recommended setup for builds with larger tires, hydro-assist steering, or demanding off-road use — this reservoir is required.

Installation Difficulty: Intermediate
Tools Required: Basic hand tools, wrench set, JIC line wrenches (for #6 and #10 fittings), drain pan for power steering fluid
Professional Installation: Recommended for builders unfamiliar with JIC hydraulic fittings and power steering line routing — improper fitting torque can result in high-pressure leaks

Maintenance Tips:

• Use proper JIC line wrenches when connecting #6 and #10 fittings — standard open-end wrenches can round JIC flare seats and create leak points
• Bleed the power steering system thoroughly after installation — cycle the steering lock-to-lock 10–15 times with the engine off, then running, to purge air from the system
• Check all fittings and mounting hardware for tightness after the first 50 miles of use — thermal cycling can cause initial settling in JIC connections
• Inspect the reservoir visually for foam or aeration in the fluid — persistent foaming indicates air ingestion, usually from a loose fitting or low fluid level

Part Type: Machined Aluminum Power Steering Reservoir
Material: CNC-machined aluminum, unpainted finish
Input Fitting (Return/Side): #6 JIC
Outlet Fitting (To Pump/Bottom): #10 JIC
Mounting: Integrated bolt-on reservoir bracket with all hardware included
Finish: Raw/natural aluminum (unpainted — ready for custom finish)
Pressure Tested: Yes — factory pressure-tested before shipping
Compatible Pump Types: TC-style high-flow aftermarket power steering pumps; Trail-Gear PowerFlow series
Note: OEM Toyota and Suzuki plastic reservoirs are not adequate for aftermarket high-flow pump systems — this reservoir is required when upgrading pump capacity