fits model: M3. year: 2017–2020.

( Brand: Tesla ), ( Manufacturer Part Number: 1521831-00-A ), ( Type: Standard Mirror Assembly ), ( Color: White ), ( Attachment Type: Bolt-on ), ( Mirror Adjustment Method: Power Fold ), ( Material: Plastic ), ( Features: Side View ), ( Vintage Part: No ), ( Placement On Vehicle: Front, Left, Rear )
The **Tesla 1521831-00-A Front Left Driver Rear View Door Mirror (PPSW)** is a precision-engineered, high-performance mirror assembly designed exclusively for the **2017-2020 Model 3** vehicles, ensuring seamless integration with Tesla s signature blend of functionality and minimalist aesthetics. Crafted from durable, corrosion-resistant materials, this mirror features a sleek, aerodynamic design that complements the vehicle s streamlined silhouette while maintaining optimal visibility for the driver. The **PPSW (Power Position Switching Window)** variant incorporates Tesla s advanced electrochromic mirror technology, allowing for automatic tinting to reduce glare from sunlight, enhancing comfort and safety during both day and night driving. The mirror s housing is constructed from high-grade plastic with a textured, matte finish that resists fingerprints and scratches, preserving its pristine appearance over time. Inside, a robust mechanical linkage system ensures smooth, precise operation, while the integrated wiring harness connects seamlessly to the vehicle s electrical system, enabling seamless power and signal functionality. This mirror is not merely an accessory but a critical component that enhances the driving experience by providing unobstructed rear visibility, adjustable positioning, and adaptive glare reduction all while adhering to Tesla s rigorous standards for quality and performance. Whether installed as an original equipment replacement or during a custom upgrade, this mirror delivers the reliability and sophistication expected from Tesla s engineering excellence.
### **Pros and Cons of buying a Tesla Part Number 1521831-00-A (2017-2020 Model 3 Front Left Driver Rear View Door Mirror PPSW)**
#### **Pros:**1. **Direct Compatibility** This part is specifically designed for the 2017-2020 Model 3, ensuring a perfect fit without modifications. It includes the Powered Power Steering Warning (PPSW) sensor, which is essential for the vehicle s safety and diagnostic systems.
2. **OEM Quality** As a genuine Tesla part, it meets the manufacturer s high standards for durability, performance, and reliability. This reduces the risk of premature failure or compatibility issues compared to aftermarket alternatives.
3. **Full Functionality** The mirror includes all necessary components, such as the motorized adjustment mechanism, sensors, and wiring harness, ensuring it works seamlessly with the vehicle s infotainment and safety systems (e.g., blind-spot monitoring, rear cross-traffic alert).
4. **Warranty Coverage** Purchasing directly from Tesla or an authorized dealer may include warranty protection, depending on the source. This provides peace of mind in case of defects or installation issues.
5. **Aesthetic Consistency** The part maintains the Model 3 s sleek, minimalist design, blending seamlessly with the vehicle s exterior. Aftermarket parts may not match the original finish or styling.
6. **Ease of Installation** Tesla parts are typically designed for straightforward installation, though some mechanical or electrical knowledge may still be required. The part comes with necessary connectors and mounting points.
7. **Long-Term Reliability** Tesla s engineering ensures that OEM parts are built to last, reducing the likelihood of needing replacements soon after purchase.
---
#### **Cons:**1. **High Cost** Genuine Tesla parts are significantly more expensive than aftermarket alternatives. The price for this mirror could range from **$300 to $600 **, depending on the source and whether labor is included.
2. **Limited Availability** Unlike common automotive parts, Tesla components may not be readily available at local auto shops. Purchasing may require ordering from Tesla s official website, authorized dealers, or third-party sellers, which could involve shipping delays.
3. **Potential Counterfeit Risks** Buying from unauthorized sellers (e.g., eBay, Amazon, or unverified marketplaces) increases the risk of receiving a counterfeit or substandard part. Always verify the seller s authenticity.
4. **Installation Complexity** While Tesla parts are designed for ease, replacing a rear view mirror especially one with integrated sensors may require disassembling parts of the door panel, wiring, and possibly recalibrating sensors. DIYers without experience may struggle, leading to additional costs for professional installation.
5. **Depreciation Concerns** If the mirror fails due to a manufacturing defect, Tesla s warranty may not cover it if the vehicle is no longer under warranty. Some owners report occasional issues with Tesla s customer service for parts replacements.
6. **Time-Consuming Process** Ordering, waiting for delivery, and installing the part can take several days to weeks, depending on availability and shipping methods.
7. **Resale Value Impact** If the mirror is replaced due to damage or failure, the vehicle s resale value may be slightly affected if potential buyers perceive it as having undergone unnecessary repairs.
---
### **Conclusion:**Buying the **Tesla part number 1521831-00-A (2017-2020 Model 3 front left driver rear view door mirror PPSW)** is the **best choice for reliability, compatibility, and long-term performance**, especially if you prioritize OEM quality and seamless integration with your vehicle s systems. However, the **high cost, potential installation challenges, and limited availability** make it a less ideal option for those on a tight budget or seeking a quick fix.
For owners who value **authenticity and durability**, this is the recommended path, provided they account for the expenses and time required. If cost is a major concern, **aftermarket alternatives** (e.g., from reputable suppliers like **TeslaPartsShop, EV Parts Store, or eBay with verified sellers**) may offer a more budget-friendly option, though with slightly higher risks of compatibility or quality issues.
### **Recommendation:**- **If you need a guaranteed fit and long-term reliability**, purchase directly from **Tesla s official website, an authorized Tesla service center, or a trusted Tesla parts dealer**. Ensure the seller provides a warranty or return policy.
- **If you re on a budget**, compare **high-quality aftermarket options** (e.g., **TeslaPartsShop, EV Parts Store**) and verify reviews for compatibility. Avoid unknown sellers to prevent counterfeit parts.
- **If installation is unfamiliar**, consider having a **Tesla-certified technician** or an **EV-savvy mechanic** handle the replacement to avoid voiding warranties or damaging the vehicle.
- **Check Tesla s warranty status** if the mirror failure is covered, Tesla may replace it for free under warranty.
Ultimately, the **OEM part is the safest choice**, but weigh the costs against your priorities (budget vs. reliability) before proceeding.
Large body panels And other oversized or heavy items. Exhaust systems. Seats/Interiors.
Core Supports. Transmissions. Complete front or rear suspension assemblies. MILEAGE: 146,311.
Doors, hoods, fenders. Model: model 3 AWD PERFORMANCE.