Teana 18 Electric Hydraulic Power Steering Rack

Premium Electric-Hydraulic Power Steering Rack for Nissan Teana

KITLAMT is a professional steering rack manufacturer and supplier in China, providing OE-quality steering systems for global aftermarket distributors.

The Nissan Teana (2008-2014) uses an advanced electric-hydraulic power steering (E-HPS) system that combines the precision of electric control with the robust assist of hydraulic pressure. This steering rack is engineered to meet or exceed original equipment specifications, providing a direct-fit replacement that restores the Teana's factory steering feel and responsiveness.

Unlike conventional hydraulic systems that use an engine-driven pump, the E-HPS system in the Nissan Teana uses an electric motor to drive the hydraulic pump. This design provides hydraulic assist strength while eliminating the parasitic load on the engine, improving fuel efficiency by 2-4%. The electric pump also allows variable assist based on vehicle speed, providing light effort at parking speeds and firm feedback at highway speeds.

Each steering rack undergoes comprehensive testing including pressure testing to 120 bar, seal integrity verification, and road-simulation trials before shipping. The rack is built with hardened gear teeth, precision-machined valve bodies, and high-temperature seals that withstand the demands of both left-hand and right-hand drive configurations.

Technical Specifications

• Product Type: Electric-Hydraulic Power Steering Rack
• Vehicle Application: Nissan Teana (2008-2014)
• Steering Configuration: RHD
• OE Reference: Contact us with your VIN for exact OE matching
• System Type: E-HPS (Electric motor-driven hydraulic pump)
• Operating Pressure: 80-120 bar
• Rack Travel: 140-160mm total stroke
• Weight: 8.5-10.0 kg depending on configuration
• Warranty: 12 months unlimited mileage

The E-HPS rack assembly includes the rack gear, control valve, hydraulic cylinder, and electric pump motor as an integrated unit. The electric pump operates on 12V DC and draws 40-60A during peak assist, requiring adequate wiring gauge and fuse protection from the vehicle's electrical system.

Vehicle Compatibility and Fitment

This E-HPS steering rack is designed as a direct replacement for the Nissan Teana (2008-2014). Before ordering, verify the following:

• Your vehicle must have the electric-hydraulic power steering system (E-HPS), not conventional HPS or EPS
• The steering configuration must match ( RHD)
• The rack mounting points and pinion angle must match your specific model year
• The electrical connector for the pump motor must be compatible

The Nissan Teana was produced in multiple markets with different steering configurations. Confirm that your vehicle uses the E-HPS system by checking for an electric pump unit mounted near the steering rack rather than an engine-driven belt pump.

Common Symptoms of E-HPS Failure

The electric-hydraulic power steering system in the Nissan Teana can develop these issues over time:

• Power steering fluid leaks: The rack seals degrade over time, especially in hot climates or when the fluid is not changed regularly. Look for red or brown fluid puddles under the front of the vehicle near the steering rack area.
• Steering play or dead spot: Worn gear teeth inside the rack create a loose, wandering feeling at center. This is most noticeable at highway speeds in the Teana.
• Electric pump noise: The E-HPS pump motor may whine or groan during steering input, particularly when the fluid is low or the pump bearings are worn.
• Stiff steering at low speed: A failing electric pump or control valve reduces hydraulic assist, making parking maneuvers difficult.
• Intermittent assist loss: Electrical issues with the pump motor, wiring, or control module can cause the system to shut down temporarily.
• Clunking over bumps: Internal bushing wear causes the rack to shift slightly under impact.

If your Nissan Teana exhibits any of these symptoms, inspect the steering rack and electric pump before replacing other components.

Installation Guide

Replacing the E-HPS steering rack on a Nissan Teana requires moderate mechanical skill:

1. Prepare the vehicle: Raise the vehicle on jack stands and remove both front wheels. Disconnect the negative battery terminal.
2. Drain power steering fluid: Place a drain pan under the steering rack. Disconnect the pressure and return lines and allow fluid to drain completely.
3. Disconnect electrical connectors: Unplug the electric pump motor connector and any sensor connectors from the rack assembly.
4. Disconnect tie rod ends: Remove the cotter pins and castle nuts from both tie rod ends. Use a tie rod separator to pop them from the steering knuckles.
5. Remove mounting bolts: Unbolt the steering rack from the subframe. Note the orientation of all brackets and spacers.
6. Slide out old rack: Carefully maneuver the old rack out through the wheel well. Note the intermediate shaft coupling orientation.
7. Install new rack: Slide the new rack into position and hand-start the mounting bolts. Reconnect the intermediate shaft.
8. Reconnect all lines and connectors: Attach hydraulic lines with new O-rings. Reconnect all electrical connectors. Reinstall tie rod ends.
9. Bleed the system: Fill with the manufacturer-specified fluid. With the engine off, turn the steering wheel lock-to-lock 10-15 times. Start the engine and repeat until fluid is clear of bubbles.
10. Test the electric pump: Start the engine and verify the electric pump operates quietly with no abnormal noise. Check for leaks at all connections.

Frequently Asked Questions

Is this a direct fit for my Nissan Teana?

Yes, this E-HPS steering rack is designed as a direct bolt-on replacement for the Nissan Teana (2008-2014). No modifications are required to the steering column, hydraulic lines, or electrical system.

What power steering fluid does the Nissan Teana use?

The E-HPS system in the Nissan Teana typically uses Dexron III or equivalent ATF. Always verify with your owner's manual, as some markets specify different fluid types. Never mix different types of power steering fluid.

How long does this steering rack last?

With proper maintenance (regular fluid changes every 60,000-80,000 km), the steering rack should last 150,000-200,000 km. Severe driving conditions, fluid contamination, or neglect can reduce lifespan significantly.

Do I need to replace the electric pump at the same time?

If the electric pump is operating quietly and providing adequate pressure, it does not need replacement. However, if the pump is noisy, leaking, or not providing adequate pressure, it should be replaced along with the rack to ensure optimal system performance.

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