fits model: Fwd. make: Buick. year: 2021–2024.

( Manufacturer Part Number: 3504177509 ), ( Type: Steering Gear ), ( Oe/oem Part Number: 84819747 ), ( Ipn: 84816844 ), ( Fitment Type: Direct Replacement ), ( Core Charge: No )
The **Buick 3504177509 2021-2024 Envision Front-Wheel Drive (FWD) Power Steering Gear Rack and Pinion Motor Assembly** is a precision-engineered component designed to deliver seamless, responsive steering control in Buick s compact electric crossover. This high-performance unit integrates a durable rack-and-pinion mechanism with an integrated electric power steering (EPS) motor, ensuring effortless maneuverability while maintaining the vehicle s sleek, modern aesthetic. Engineered to meet the rigorous demands of modern urban and highway driving, this gear rack features a robust helical cut design, optimized for smooth operation, reduced noise, and enhanced durability over the vehicle s lifespan. The integrated EPS motor provides variable assist, adapting to driver input for a natural, intuitive feel whether navigating tight city streets or cruising on the highway while the compact, streamlined housing minimizes under-hood clutter and maximizes interior space. Built with corrosion-resistant materials and sealed bearings, this assembly is engineered to withstand harsh environmental conditions, from extreme temperatures to road salt exposure, ensuring reliable performance in diverse climates. Compatible exclusively with the 2021 through 2024 Buick Envision FWD models, this OEM-quality replacement part guarantees a perfect fit, maintaining factory alignment and functionality for a driving experience that balances precision with comfort. Whether replacing a worn-out original component or upgrading during routine maintenance, this power steering gear rack and pinion motor assembly represents the pinnacle of Buick s commitment to blending cutting-edge technology with refined engineering.
### **Pros and Cons of Buying a Used 2021-2024 Buick Envision FWD with a Power Steering Gear Rack, Pinion, and Motor (Part #3504177509)**
#### **Pros:**1. **Reliability of the Buick Envision Platform** The Buick Envision is built on the same platform as the Chevrolet Trax and GMC Terrain, which are known for solid construction and decent longevity if maintained properly. The FWD configuration reduces potential drivetrain issues compared to AWD models.
2. **Power Steering System Replacement is a Common Repair** The power steering gear rack, pinion, and motor (part #3504177509) is a widely available and relatively standard replacement part. Many mechanics and dealerships have experience working with it, making repairs more straightforward.
3. **Potential Cost Savings** Buying a used Envision with a known power steering issue can be cheaper than purchasing a new or certified pre-owned (CPO) model. If the rest of the vehicle is in good condition, this could be a cost-effective choice.
4. **Modern Features and Safety** The 2021-2024 Envision comes with modern amenities such as Apple CarPlay/Android Auto, available wireless charging, and advanced safety features like forward collision alert, automatic emergency braking, and blind-spot monitoring.
5. **Fuel Efficiency** The Envision offers decent fuel economy for a compact SUV, typically around **23-26 MPG combined**, which is reasonable for its class.
6. **Resale Value and Brand Perception** Buick has improved its reputation in recent years, and the Envision holds its value relatively well compared to some competitors. This could make it easier to sell or trade in later.
7. **Available Maintenance Records** If the vehicle has a full service history, you can verify that the power steering system was either replaced or serviced, reducing the risk of an immediate failure.
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#### **Cons:**1. **Power Steering Issues Are a Known Weakness** The 2021-2024 Buick Envision (and its GM siblings) has had reports of power steering failures, particularly with the rack and pinion system. Some owners have experienced leaks, grinding noises, or complete failure, often requiring premature replacement of the power steering components.
2. **Potential for Hidden Mechanical Problems** Since the power steering system is failing, there may be other wear-and-tear issues (e.g., worn suspension, brake pads, or transmission concerns) that the seller hasn t disclosed. A thorough pre-purchase inspection is critical.
3. **Higher Maintenance Costs** If the power steering system fails again soon after replacement, you may face additional repair bills. The cost of labor and parts for power steering repairs can add up, especially if the vehicle is no longer under warranty.
4. **Limited Long-Term Data** While the Envision is a relatively new model, long-term reliability data (beyond 50,000 miles) is still emerging. Some early adopters have reported issues that may not be widely known yet.
5. **Depreciation Risk** Like most compact SUVs, the Buick Envision depreciates quickly. If you plan to keep it for an extended period, you may not recoup much of your investment when selling.
6. **Potential for Electrical Gremlins** Some owners have reported minor electrical issues (e.g., infotainment glitches, sensor malfunctions) that, while not critical, can be annoying.
7. **Resale Market Competition** The used SUV market is competitive, and you may struggle to find a buyer willing to pay a fair price for a vehicle with a known power steering issue, even after repair.
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### **Ending Conclusion:**Buying a **used 2021-2024 Buick Envision FWD with a failing power steering system (requiring replacement of the rack, pinion, and motor)** can be a **good deal if:**
- The rest of the vehicle is in excellent condition (no major mechanical or electrical issues).
- You have **verified the power steering failure is isolated** (no other hidden problems).
- You **budget for potential future repairs** (e.g., suspension, brakes, transmission).
- You **plan to keep the vehicle for a few years** rather than reselling quickly.
However, if you **prioritize long-term reliability and low maintenance costs**, this purchase carries **significant risks**, especially given the known power steering weaknesses in this model. The repair itself is manageable, but the **chance of recurring issues** makes this a **high-risk, high-reward** decision.
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### **Recommendation:**1. **Get a Professional Pre-Purchase Inspection (PPI)** Hire a trusted mechanic to thoroughly check the vehicle, including the power steering system, suspension, transmission, and electrical components. This will help identify any hidden problems.
2. **Verify the Power Steering Failure is the Only Major Issue** If the vehicle has **no other significant wear or damage**, and the power steering failure is confirmed (not just a minor leak), then proceeding with the purchase may be justified.
3. **Negotiate the Price Downward** Since the power steering system needs replacement, use this as leverage to **reduce the asking price** by at least **$1,500 $3,000**, accounting for the repair cost.
4. **Consider Alternative Options**
- If you re looking for a **reliable compact SUV**, consider **used models with stronger power steering reputations**, such as:- **Toyota RAV4 (2016 )** Known for durability.
- **Honda CR-V (2017 )** Proven reliability.
- **Subaru Forester (2018 )** Good AWD option if needed.
- If you **must have a Buick**, look for a **2020 or earlier model** (though power steering issues may still exist).
5. **Budget for Future Repairs** Even after replacing the power steering components, **plan for potential suspension, brake, or transmission work** within the next **3 5 years**.
6. **Only Buy from a Trusted Seller** Prefer **dealerships with return policies** or **private sellers with full service records** to minimize risk.
### **Final Verdict:****Proceed with caution.** The Buick Envision is a **decent compact SUV**, but its **power steering reliability issues** make this a **risky purchase for most buyers**. If you **inspect thoroughly, negotiate aggressively, and accept the possibility of future repairs**, it *could* be a good deal. However, if **reliability is your top priority**, consider a **more proven alternative** instead.
MILEAGE: 87K MILES. TRANSMISSION: 9-SPEED AUTOMATIC 9T50 / M3H. BODY TYPE: SPORT UTILITY 4-DOOR SUV. COLOR: EXTERIOR ZANZIBAR METALLIC 686D.