LEXUS 455100E070 Power Steering Gear Rack Pinion

( Manufacturer Part Number: 455100E070 ), ( Location: Zwag4a3 ), ( Listed: Um53 ), ( Type: Rack Pinion Complete Unit ), ( Oe/oem Part Number: 455100e070 / 45510 0e070, 4546009270 / 45460 09270 )

Review LEXUS Power Steering Gear Rack And Pinion Assembly Oem fits RX350 2016–2022

The **Lexus RX350 Power Steering Gear Rack and Pinion Assembly (Part Number: 455100E070, Model Years: 2016 2022)** is a precision-engineered component designed to deliver smooth, responsive, and effortless steering control in the iconic Lexus RX350 luxury SUV. This high-performance rack and pinion assembly represents the pinnacle of automotive engineering, combining durability with seamless operation to enhance the driving experience. Crafted from premium-grade materials, including hardened steel and corrosion-resistant coatings, this steering system is built to withstand the rigors of daily driving while maintaining optimal performance over the long term. The rack and pinion mechanism features a helical gear design, ensuring minimal play and maximum precision, which translates to a taut, direct feel at the wheel ideal for both city maneuverability and highway stability. The assembly incorporates advanced sealing technology to prevent fluid leaks, safeguarding against environmental contaminants that could compromise steering efficiency. Additionally, the rack is engineered with a self-centering feature, reducing steering wheel wander and improving overall handling accuracy. Whether installed in a newly serviced vehicle or as a replacement for wear-and-tear, this Lexus-specific part ensures compatibility with the RX350 s advanced electronic power steering (EPS) system, maintaining seamless integration with the vehicle s existing infrastructure. Built to Lexus s exacting standards, this component is a critical element in preserving the RX350 s reputation for refined luxury, reliability, and driving dynamics.

### **Pros and Cons of Buying a Used Lexus RX350 (2016 2022) with a Power Steering Gear Rack/Pinion Issue**

#### **Pros**

1. **Reliability and Reputation**

Lexus is known for its durability, especially in the RX350 lineup, which is built on Toyota s TNGA platform. The 3.5L V6 engine is robust, and many RX350s have exceeded 200,000 miles with proper maintenance. The hybrid models (if applicable) are even more efficient and reliable.

2. **Strong Resale Value**

Lexus retains its value better than most luxury brands. Even with a power steering issue, the RX350 remains a desirable used luxury SUV, which helps offset repair costs.

3. **Comfort and Luxury Features**

The RX350 offers a smooth ride, high-quality interior materials, and advanced safety features (standard Toyota Safety Sense, blind-spot monitoring, adaptive cruise control). The cabin is well-insulated, reducing road noise compared to many competitors.

4. **Fuel Efficiency (Non-Hybrid Models)**

The 3.5L V6 in the RX350 (non-hybrid) averages around **18 20 MPG combined**, which is decent for a luxury SUV. Hybrid models (if available) improve this to **30 35 MPG**, making them more cost-effective long-term.

5. **Low Maintenance Costs (Compared to Competitors)**

Lexus dealerships and independent mechanics are familiar with the platform, and parts (especially for the engine and transmission) are relatively affordable. The 3.5L V6 is known for longevity if maintained properly.

6. **Spacious and Practical Interior**

The RX350 offers a **V-shaped rear seat** (in later models) that provides more cargo space than traditional bench seats. The third-row (in some trims) adds flexibility for families.

7. **Available Hybrid Option (If Needed)**

If you prioritize fuel efficiency, the **RX350h (2016 2022)** is a strong choice, offering hybrid reliability with Toyota s proven hybrid system.

8. **Good Warranty Coverage (If Purchased from a Certified Pre-Owned Dealer)**

Some used Lexus RX350s come with **extended warranties** (e.g., Toyota Care, Lexus Certified), which can cover the power steering issue or other major components.

---

#### **Cons**

1. **Power Steering Gear Rack/Pinion Failure**

- **Common Issue:** The power steering rack/pinion in some RX350s (especially 2016 2018) has been reported to fail due to **seal leaks, internal wear, or fluid contamination**, leading to **stiff steering, whining noises, or complete loss of power assist**.

- **Repair Cost:** Replacing the rack/pinion typically costs **$800 $1,500** (parts labor), depending on whether you use OEM or aftermarket components.

- **Risk of Recurrence:** Some owners report that aftermarket racks fail sooner than OEM parts, so quality matters.

2. **Potential Transmission Issues (Early Models)**

- **2016 2017 RX350s** with the **6-speed automatic transmission** have had reports of **rough shifting, delayed engagement, or solenoid failures**.

- **Solution:** A **transmission fluid flush and inspection** can help, but a full rebuild may be needed in severe cases ( $2,500 $3,500).

3. **Suspension Wear Over Time**

- **Struts, bushings, and control arms** can wear out by **80,000 120,000 miles**, leading to **rough rides or clunking noises**.

- **Cost:** Strut replacements run **$300 $600 per corner**, while bushings may cost **$200 $500**.

4. **Hybrid-Specific Concerns (If Applicable)**

- **Battery Degradation:** The **hybrid battery** (in RX350h) can degrade over time, reducing efficiency. Replacement costs **$3,000 $5,000**.

- **High Voltage Wiring Issues:** Some hybrids develop **corrosion or loose connections**, which can cause electrical gremlins.

5. **Interior Wear and Tear**

- **Plastic trim** (door panels, center console) can crack or peel over time, especially in high-mileage examples.

- **Leather seats** may develop **cracks or odors** if not well-maintained.

6. **Resale Depreciation**

- While Lexus holds value well, a used RX350 with a **known power steering issue** will depreciate faster than a clean example.

7. **Limited Off-Road Capability**

- The RX350 is a **comfort-focused SUV**, not an off-roader. It lacks **all-wheel drive (AWD) traction control** (unlike the RX350 F-Sport, which has limited-slip differentials).

---

### **Conclusion**

You **budget for the repair** ( $800 $1,500) and use **OEM or high-quality aftermarket parts**.

The **transmission, suspension, and hybrid components (if applicable) are in good condition**.

You **prioritize reliability, comfort, and luxury** over off-road performance.

You **purchase from a reputable dealer** (Lexus Certified or a trusted private seller with full service records).

The **power steering issue is severe** (e.g., complete failure) and the seller won t cover repairs.

The **transmission or hybrid system shows signs of neglect** (rough shifts, battery degradation).

You **cannot afford unexpected repairs** (e.g., suspension, struts, or electrical issues).

---

### **Recommendation**

1. **Get a Pre-Purchase Inspection (PPI)**

- Hire a **trusted mechanic or Lexus specialist** to inspect the **power steering rack, transmission, suspension, and hybrid system (if applicable)**.

- Look for **leaking fluid, unusual noises, or resistance in steering**.

2. **Budget for the Power Steering Repair**

- If the rack/pinion is confirmed faulty, **factor in $1,000 $1,500** for replacement.

- Consider **OEM parts** (Lexus dealership) for long-term reliability.

3. **Check Service History**

- A well-maintained RX350 with **regular oil changes, transmission fluid flushes, and hybrid battery checks** will last longer.

- Avoid examples with **skipped maintenance** (especially on the hybrid system).

4. **Consider Alternatives if Needed**

- If the power steering issue is too costly, look for an **RX350 with a known good rack** or consider a **Lexus ES350** (if you prefer a sedan) or **Toyota Highlander Hybrid** (if you want better hybrid reliability).

5. **Negotiate the Price**

- If the seller is aware of the power steering issue, **use it as leverage to lower the price** by **$1,500 $2,500** to account for the repair.

A **used Lexus RX350 (2016 2022) with a power steering rack/pinion issue can be a smart purchase if you re prepared for the repair and the rest of the vehicle is in good shape.** However, if the issue is severe or other major components (transmission, hybrid system) are neglected, it may be better to look for a **cleaner example or a different model** within the same price range. Always **prioritize transparency from the seller and a thorough inspection** before buying.

Details:

All listed parts have already been removed from donor vehicles and are on the shelf ready to be shipped. Are final sale. This MUST be specified AT TIME OF PURCHASE. Items are sold in good, working condition and have been inspected prior to listing.

Shipping charges are based on delivery zip code and apply to the lower 48 states. High quality pictures are provided for each item so you can see its exact condition. 60-day return period begins on the day part is delivered. 2016 - 2022 LEXUS RX350 POWER STEERING GEAR RACK PINION ASSEMBLY OEM Menu.

Locations without a dock or forklift will incur lift gate fee. Orders are shipped via USPS, UPS, or FedEx. Pulsate Template v6-3-24 Gearboxes, Rack Pinions.

part #: 455100e070 prices

• $135.39-$242.99

specifications steragebo:

• for models: Rx350
• for makes: Lexus
• for years: 2016-2022
• mpn: 455100e070
• location: Zwag4a3
• listed: Um53
• type: Rack Pinion Complete Unit
• oe/oem part number: 455100e070 / 45510 0e070, 4546009270 / 45460 09270

general steragebo:

• condition: Used
• Car Truck Parts Accessories > Steering Suspension > Gearboxes, Rack Pinions

returns steragebo:

• time: 60 Days
• paid by: Buyer
• policy: Returns Accepted

offer steragebo:

• options: Ship-to-home
• quantity: 1
• sold: 0
• started: April 16, 2026
• best offers: True
• availability: In Stock

payments steragebo:

• other
• credit card: Visa
• wallet: Apple-pay

seller steragebo:

• city: Nicholasville, Kentucky
• rating: 100.0%
• # reviews: 79785

shipping steragebo:

• cost: $70.00
• service: Standard
• type: Fixed
• transit: 4-6 Days
• class: Standard

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