SUBARU 179.SU1W15 Fuel Filler Neck

( Part Type: Fuel Filler ), ( Genuine Oem: Yes ), ( Ipn: 179.su1w15 ), ( Manufacturer Warranty: 60 Day )

Review SUBARU Fuel Filler Neck fits WRX 2015

The **2015 Subaru WRX STI (179.su1w15) Fuel Filler Neck** is a precision-engineered component designed to seamlessly integrate with the iconic FA20 turbocharged platform, ensuring optimal fuel delivery while maintaining the sporty, high-performance aesthetic of the WRX. Crafted from durable, corrosion-resistant materials, this fuel filler neck is engineered to withstand the demands of daily driving, aggressive track use, and the harshest environmental conditions, from coastal salt spray to extreme temperatures. The neck features a sleek, aerodynamic design that not only enhances the vehicle s aggressive stance but also minimizes air turbulence, reducing the risk of fuel splashing and ensuring a cleaner, more efficient fuel transfer into the tank. Compatible exclusively with the **179.su1w15 WRX STI**, this part is a direct replacement for the factory unit, maintaining the original fitment without compromising on performance or style.

Underneath its polished exterior, the fuel filler neck incorporates a robust sealing system, including a high-quality rubber gasket and a secure locking mechanism, preventing leaks and ensuring a tight, vibration-free connection to the fuel tank. The design prioritizes both functionality and durability, with reinforced mounting points that resist wear over time, even under the stress of repeated installations and removals. For enthusiasts who seek to preserve the stock look while upgrading other components, this fuel filler neck offers a seamless blend of practicality and authenticity, allowing for easy access to the fuel tank without sacrificing the WRX s signature aggressive styling cues. Whether used in stock applications, aftermarket fuel system modifications, or as part of a full tank upgrade, this component serves as a reliable and visually appealing solution for maintaining the integrity of the WRX s fuel system.

### **Pros and Cons of Buying a 2015 Subaru WRX STI Fuel Filler Neck (Part #179.SU1W15)**

1. **Direct Fitment** This is an OEM replacement part designed specifically for the 2015 Subaru WRX STI, ensuring proper alignment and functionality without modifications.

2. **Durability** Made from high-quality materials, it should withstand normal wear and tear, reducing the risk of leaks or damage over time.

3. **Easy Installation** As a direct replacement, it should fit seamlessly into the existing fuel system, making installation straightforward for most mechanics or DIYers with basic tools.

4. **Prevents Fuel Spills** A properly functioning filler neck ensures a secure seal, reducing the risk of fuel leaks, which is especially important for performance vehicles where fuel system integrity is critical.

5. **Cost-Effective** Compared to full fuel system overhauls or custom aftermarket parts, this is a relatively inexpensive solution for a common wear-and-tear issue.

6. **Compatibility with Mods** Since it s an OEM part, it should work well with common WRX STI modifications, such as fuel line upgrades or performance fuel pumps, without causing compatibility issues.

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1. **Wear and Tear Risk** If the original filler neck was already degraded (e.g., cracked, brittle, or corroded), the new part may fail prematurely if the underlying issues (e.g., fuel system contamination, improper handling) persist.

2. **Potential for Counterfeit Parts** If purchasing from an untrusted seller, there s a risk of receiving a knockoff or low-quality replica that doesn t meet OEM standards, leading to leaks or poor performance.

3. **Limited Longevity with Aggressive Driving** High-performance driving (e.g., frequent track use, aggressive throttle inputs) can accelerate wear on the filler neck, especially if the fuel system isn t properly maintained.

4. **No Upgrades Beyond OEM** Unlike aftermarket alternatives, this part doesn t offer performance enhancements (e.g., improved flow rates, reinforced materials for extreme conditions).

5. **Installation Challenges** If the surrounding fuel lines or mounting brackets are damaged, additional repairs may be required, adding to labor costs.

6. **Environmental Concerns** If the old filler neck was improperly disposed of, it could contribute to fuel contamination if not handled correctly during removal.

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### **Conclusion**

The **2015 Subaru WRX STI fuel filler neck (179.SU1W15)** is a **practical and reliable OEM replacement** for addressing leaks, cracks, or general wear in the fuel system. It strikes a balance between **cost-effectiveness, ease of installation, and compatibility** with the stock vehicle. However, its effectiveness depends on **proper installation, maintenance of the surrounding fuel system, and sourcing from a reputable supplier** to avoid counterfeit parts.

For most owners dealing with a **minor fuel system issue**, this part is a **solid choice**. If the vehicle has **significant mileage or a history of neglect**, it may be wise to inspect the **fuel lines, fuel pump, and fuel rail** simultaneously to prevent future problems. Additionally, if performance upgrades are planned, consider whether a **high-quality aftermarket alternative** (e.g., from brands like **AEM, FuelTech, or Spectre**) could offer better durability or flow characteristics.

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### **Recommendation**

- **Buy from a trusted source** (e.g., **Subaru dealer, reputable online retailers like RockAuto, or specialty performance parts stores**) to ensure authenticity.

- **Inspect the surrounding fuel system** (lines, pump, seals) during installation to avoid recurring issues.

- **Follow proper fuel system maintenance** (e.g., fuel system cleaner, line inspections) to extend the life of the filler neck.

- **Consider aftermarket options** only if you re planning **aggressive modifications** or have concerns about long-term durability.

For the average WRX STI owner, the **OEM filler neck is the safest and most straightforward solution** for a standard replacement. If budget allows, pairing it with **high-quality fuel lines and a performance fuel pump** can further enhance reliability.

Details:

part #: 179.su1w15 price

• $90.00

specifications fueltanksysteme:

• for models: Wrx
• for makes: Subaru
• for years: 2015
• part type: Fuel Filler
• genuine oem: Yes
• ipn: 179.su1w15
• manufacturer warranty: 60 Day

shipping fueltanksysteme:

• transit: 3-9 Days
• service: USPS Priority Mail
• type: Fixed
• class: Expedited
• carrier: USPS
• cost: $0.00

general fueltanksysteme:

• condition: Used
• Car Truck Parts Accessories > Air Fuel Delivery > Fuel Tanks Filler Necks

offer fueltanksysteme:

• started: April 20, 2026
• best offers: True
• availability: In Stock
• options: Ship-to-home
• sold: 0
• quantity: 1

payments fueltanksysteme:

• wallet: Paypal
• credit card: Visa
• other

returns fueltanksysteme:

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

seller fueltanksysteme:

• rating: 98.4%
• city: South River, New Jersey
• # reviews: 869

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