1. Mirrors Exterior For Sale
  2. sku: 18780128801707632
  3. SUBARU 91039AL13A

SUBARU 91039AL13A Heated Right Door Mirror Glass Passenger

fits model: Wrx, Sti. make: Subaru. year: 2015–2021.

91039al13a Subaru Wrx Sti Heated Right Door Mirror Glass Passenger Side Oem 2015-2021

( Manufacturer Part Number: 91039AL13A ), ( Type: Mirror Glass )

Review SUBARU Heated Right Door Mirror Glass Passenger Side Oem fits WRX STI 2015–2021

The **Subaru 91039AL13A WRX STI Heated Right Door Mirror Glass (Passenger Side, 2015 2021)** is a precision-engineered replacement part designed to restore both functionality and style to your high-performance Subaru WRX STI. This mirror is a direct-fit, high-quality aftermarket solution crafted to match the exact specifications of the original equipment manufacturer (OEM) mirror assembly, ensuring seamless integration with the 2015 through 2021 model years of the WRX STI. The mirror features a **heated glass element**, providing reliable defrosting capabilities to eliminate fogging, ice buildup, or condensation during inclement weather or cold climates, enhancing visibility and safety without the need for manual scraping or defrosting. Constructed from **tempered glass**, it is built to withstand the rigors of daily driving, including impacts from road debris, minor bumps, and temperature fluctuations, while maintaining optical clarity and durability. The mirror s sleek, aerodynamic design complements the aggressive styling cues of the WRX STI, blending seamlessly with the vehicle s sport-tuned exterior. Whether you re navigating wet roads, snowy conditions, or simply seeking convenience, this heated mirror ensures a clear, unobstructed view of your surroundings, contributing to a more enjoyable and secure driving experience. Ideal for both restorers and enthusiasts looking to maintain or upgrade their STI s original equipment, this part is a straightforward, high-performance solution that delivers both practicality and precision.

### **Pros and Cons of Buying a 2015-2021 Subaru WRX STI (91039AL13A) with Heated Right Door Mirror Glass (Passenger Side)**

#### **Pros**

1. **Performance and Driving Dynamics**

- The WRX STI is renowned for its balanced handling, precise steering, and aggressive yet refined performance. The 2.5L flat-four turbocharged engine (FA20D engine) produces **305 330 horsepower** (depending on the year and modifications) and **280 306 lb-ft of torque**, making it a capable track and street machine.

- The **Symmetrical AWD** system ensures excellent traction in all conditions, whether on dry pavement, wet roads, or light off-road terrain.

- The **6-speed manual transmission** (or optional **6-speed automatic** in later models) is smooth and engaging, with quick shifts and a satisfying clutch feel in the manual version.

2. **Reliability and Durability**

- Subaru s **boxer engine** is known for longevity, especially when maintained properly. With **regular oil changes, timing belt replacements (every 105,000 miles), and proper cooling system care**, the FA20D can easily exceed **200,000 miles**.

- The **AWD system** is robust, though it requires occasional **fluid changes** (every 60,000 100,000 miles) to prevent premature wear.

- The **suspension (coilovers, struts, and bushings)** is durable but may require upgrades (e.g., **Eibach springs, Bilstein shocks**) for better handling or comfort.

3. **Aftermarket Support and Modification Potential**

- The WRX STI has one of the **largest aftermarket communities** in the automotive world, with widespread support for **tuning, suspension upgrades, exhaust systems, and interior modifications**.

- **Standalone ECU tuners** (e.g., **AEM, Haltech, Link**) can unlock **additional horsepower (350 HP)** with proper cooling and drivetrain reinforcement.

- **Performance brakes** (e.g., **Brembo, StopTech**) and **stiffer suspension setups** are readily available for track use.

- **AWD lock systems** (e.g., **Subaru s stock AWD lock or aftermarket options**) enhance off-road capability.

4. **Resale Value and Community**

- The WRX STI holds its value relatively well, especially in **high-performance segments**, due to its reputation and demand among enthusiasts.

- Owning one grants access to **dedicated forums (WRXBluePrint, Reddit s r/wrxsti), meetups, and track days**, fostering a strong owner community.

5. **Heated Right Door Mirror (Passenger Side) Convenience Feature**

- The **heated mirror** is a minor but appreciated feature for cold-weather driving, preventing ice buildup and improving visibility.

- While not critical, it adds a small touch of luxury compared to stock WRX models.

6. **Stock Features and Practicality**

- The **2015 2021 WRX STI** comes with **standard features** such as:

- **All-wheel drive** (essential for winter driving in snowy regions).

- **Subaru s EyeSight Driver Assist** (adaptive cruise control, pre-collision braking, lane-keep assist though some owners disable it for track use).

- **Bose premium audio** (in higher trims).

- **Leather seats** (in later models).

- **Good interior build quality** (though some plastic trim may wear over time).

- The **trunk space (13.1 cu. ft.)** is adequate for daily use, though not as spacious as a sedan.

---

#### **Cons**

1. **Maintenance Costs and Complexity**

- **Oil changes** should be done with **high-quality synthetic oil (5W-30 or 5W-40)** every **5,000 7,500 miles** to protect the turbo and internals.

- **Timing belt and water pump replacement** is **critical** and should be done **every 105,000 miles** (or as recommended by the manufacturer). Skipping this can lead to **catastrophic engine damage**.

- **Cooling system failures** (water pump, thermostat, hoses) are a known issue, especially in **hot climates**. The **radiator and intercooler** may require upgrades for high-power builds.

- **AWD fluid changes** are often neglected but should be done **every 60,000 100,000 miles** to prevent **premature differential wear**.

- **Suspension components** (control arms, bushings, struts) wear out over time and may need **replacement every 80,000 120,000 miles**, especially if driven aggressively.

2. **Turbocharger and Exhaust System Wear**

- The **turbocharger** is a **common failure point** if not maintained properly. **Oil changes with proper filtration** and **avoiding excessive boost without reinforcement** can extend its life.

- **Wastegate seals and bearings** may leak or fail, requiring **turbo rebuilds or replacements** (costly, often **$1,500 $3,000**).

- **Exhaust manifold gaskets** can leak, leading to **loss of boost and rough idle**.

3. **Interior and Comfort Trade-offs**

- The **interior is functional but not luxurious**. The **steering wheel and shifter** are **hard and stiff**, which some drivers find uncomfortable for long trips.

- **Rear seat space is limited**, making it impractical for tall passengers or frequent backseat use.

- **Noise levels** can be high at highway speeds, though **aftermarket sound deadening** can help.

- **Heated seats** are **not standard** (only available in higher trims), which can be an issue in very cold climates.

4. **Fuel Economy and Running Costs**

- The **WRX STI is not fuel-efficient** by modern standards:

- **Manual (2015 2016):** 18 20 MPG city, 24 26 MPG highway.

- **Automatic (2017 ):** 17 19 MPG city, 23 25 MPG highway.

- **High-performance tires** (e.g., **Michelin Pilot Sport 4S, Continental ExtremeContact**) wear out quickly and are **expensive** ( $1,000 $1,500 for a full set).

- **Insurance costs** are **high** due to the car s **performance reputation and theft risk**.

5. **Common Issues to Watch For**

- **Oil leaks** (valve cover gasket, oil filter housing gasket).

- **Water pump failures** (especially in hot climates).

- **Suspension bushings** (front and rear) wear out and can cause **clunking noises**.

- **A/C compressor failures** (common in older models).

- **Electrical gremlins** (e.g., **random warning lights, sensor failures**).

6. **Depreciation and Market Saturation**

- The **WRX STI has been in production since 2014**, meaning **2015 2021 models are now mid-cycle**, and **2022 models (with the new FA24 engine) are becoming more common**.

- **Prices have dropped** for older models, but **supply is high**, so **negotiation may be competitive**.

- **Newer models (2022 )** offer **better fuel efficiency, updated tech, and a more refined ride**, which may reduce demand for older STIs.

7. **Heated Mirror Minor but Potential Issues**

- While convenient, **heated mirrors can fail** over time, requiring **replacement (often $100 $300)**.

- Some owners report **intermittent heating issues** due to **wiring or resistor failures**.

---

### **Conclusion**

The **2015 2021 Subaru WRX STI (91039AL13A) with a heated right door mirror** is an **excellent choice for enthusiasts** who prioritize **performance, AWD capability, and modification potential**. It offers **strong power delivery, engaging driving dynamics, and a robust aftermarket ecosystem**, making it ideal for **track days, autocross, and street driving**.

However, **ownership comes with higher maintenance costs, potential reliability concerns (if not properly maintained), and less comfort compared to modern sedans**. The **heated mirror is a nice touch but not a dealbreaker**, and the **interior is functional rather than luxurious**.

If you **drive it responsibly, stay on top of maintenance, and enjoy the driving experience**, the WRX STI remains a **fantastic daily driver and performance car**. But if you **prioritize fuel efficiency, low running costs, or a

Details:

All shipping charges are within lower 48 states only. Lift gate delivery to a business without limited access is $85 extra. Business with limited access is $150 extra. Right Door Heated Mirror Glass.

part #: 91039al13a prices

  • $71.24-$121.90

specifications mirroexter:

  • for models: Wrx, Sti
  • for makes: Subaru
  • for years: 2015-2021
  • mpn: 91039al13a
  • type: Mirror Glass

seller mirroexter:

  • rating: 99.9%
  • # reviews: 22722
  • city: Flat Rock, North Carolina

offer mirroexter:

  • started: March 23, 2026
  • quantity: 1
  • availability: In Stock
  • options: Ship-to-home
  • sold: 0

payments mirroexter:

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

shipping mirroexter:

  • transit: 3-8 Days
  • type: Fixed
  • service: Standard
  • class: Standard
  • cost: $0.00

returns mirroexter:

  • paid by: Buyer
  • time: 30 Days
  • policy: Returns Accepted

general mirroexter:

  • Exterior Parts Accessories > Side View Mirrors > Mirror Glass
  • condition: Used
for models: wrx, sti, for makes: subaru, for years: 2015-2021, type: mirror glass,
category: auto parts > exterior parts accessories > side view mirrors > mirror glass, sku: 18780128801707632,
Subaru 91039AL13A Is Similar To:
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5 offers $71.24–$121.90 USD
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