SPECTRA PREMIUM FN1079 Fuel Tank Filler Neck

( Brand: Spectra Premium ), ( Manufacturer Part Number: FN1079 ), ( Part Type: Fuel Tank Filler ), ( Parts Included: Only Part Reference 0 On The Diagram Is Included )

Review SPECTRA PREMIUM Fuel Tank Filler Neck Direct Fit Oe Replacement

The **Spectra FN1079 Fuel Tank Filler Neck** is a high-performance, precision-engineered component designed to meet the rigorous demands of modern automotive and industrial fuel systems. Crafted from durable, corrosion-resistant materials, this filler neck ensures a secure and leak-proof connection between the fuel tank and the vehicle s fueling system, safeguarding against spills, contamination, and environmental hazards. Its robust construction incorporates a robust **1079 series design**, featuring a **1-inch (25.4mm) nominal diameter** with a **female NPT (National Pipe Thread) connection**, allowing for seamless integration with compatible fuel lines, pumps, and nozzles. The neck is engineered with a **smooth, tapered interior**, reducing friction and ensuring efficient fuel flow while minimizing the risk of clogging or sediment buildup. For added reliability, the Spectra FN1079 is equipped with a **reinforced gasket or O-ring seal**, depending on the application, which provides an airtight barrier against fuel vapor escape and external contaminants, extending the lifespan of both the filler neck and the fuel system as a whole.

Beyond its functional excellence, this filler neck is built to withstand extreme environmental conditions, including exposure to UV radiation, temperature fluctuations, and harsh chemicals, making it ideal for use in automotive, marine, agricultural, and off-road vehicles where durability is paramount. The **high-grade thermoplastic or reinforced composite material** used in its construction resists cracking, warping, and degradation over time, ensuring long-term performance even in demanding applications. Additionally, the Spectra FN1079 is designed with **ergonomic considerations**, featuring a smooth, contoured exterior that prevents snagging on clothing or equipment, while its **low-profile design** allows for easy installation in tight spaces without compromising functionality. Whether integrated into a stock fuel system or as part of a custom modification, this filler neck delivers a perfect balance of strength, precision, and ease of use, making it a trusted choice for professionals and enthusiasts alike who demand nothing less than superior quality in their fueling components.

**Pros and Cons of buying a Spectra FN1079 Fuel Tank Filler Neck**

The Spectra FN1079 is a popular aftermarket fuel tank filler neck designed for various applications, including trucks, SUVs, and off-road vehicles. Below is a detailed breakdown of its advantages and disadvantages.

### **Pros**

1. **Compatibility and Fitment**

The FN1079 is engineered to fit a wide range of vehicles, including many Ford, Chevrolet, and Dodge models, as well as aftermarket fuel tanks. Spectra is known for providing detailed fitment guides, reducing the risk of purchasing a wrong part. It is also designed to work with common fuel tank sizes, making it versatile for modifications or replacements.

2. **Durability and Material Quality**

Spectra products are generally made from high-quality materials, including reinforced polycarbonate or ABS plastic, which are resistant to fuel degradation, UV exposure, and physical impact. The FN1079 features a sturdy construction that can withstand harsh conditions, including off-road use where debris or rough handling might occur.

3. **Easy Installation**

The filler neck is designed for straightforward installation, often requiring minimal tools. It typically includes mounting hardware and gaskets, and the design is straightforward enough for DIYers to handle without professional assistance. Spectra also provides clear instructions, which helps reduce installation errors.

4. **Fuel Flow Efficiency**

The FN1079 is designed with an optimized internal diameter to ensure smooth fuel flow, reducing the risk of clogging or slow fuel delivery. This is particularly useful in high-performance or modified vehicles where efficient fuel transfer is critical.

5. **Compatibility with Fuel Systems**

It is designed to work with standard fuel pumps and nozzles, ensuring compatibility with most aftermarket or OEM fuel systems. The filler neck also often includes a secure locking mechanism to prevent accidental dislodgment of the fuel cap or nozzle.

6. **Cost-Effective Solution**

Compared to OEM parts, the FN1079 is often more affordable, especially for vehicles where the original filler neck is no longer available or has failed. It provides a cost-effective alternative without sacrificing quality.

7. **Aesthetic and Customization Options**

Spectra offers various finishes and styles for the FN1079, including matte black, glossy, or even custom colors. This allows for better integration with vehicle aesthetics, especially in custom builds or restomods.

8. **Warranty and Customer Support**

Spectra provides a warranty (typically 1 2 years) on their filler necks, offering some protection against manufacturing defects. Their customer support is generally responsive, with resources available online for troubleshooting or fitment questions.

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### **Cons**

1. **Limited Fitment for Niche Applications**

While the FN1079 fits many common vehicles, it may not be compatible with highly specialized or rare models. Users should always verify fitment before purchasing, as incorrect sizing or orientation can lead to installation issues or leaks.

2. **Potential for Leaks or Seal Failures**

Like any aftermarket part, the FN1079 relies on gaskets and seals to prevent leaks. Over time, these can degrade due to fuel exposure, temperature fluctuations, or improper installation. Some users report seal failures, particularly in older models or under extreme conditions.

3. **Quality Variability**

While Spectra is a reputable brand, there have been occasional reports of inconsistent quality in batches. Some customers receive parts with minor defects, such as warping, uneven edges, or poorly fitted hardware. This is relatively rare but worth noting when purchasing.

4. **Installation Challenges in Tight Spaces**

Depending on the vehicle s fuel tank location, installing the FN1079 can be tricky, especially in tight or hard-to-reach areas. Users with limited mechanical experience may struggle with alignment or securing the filler neck properly.

5. **Compatibility with Non-Standard Nozzles**

While the FN1079 works with most standard fuel nozzles, it may not fit oversized or custom nozzles designed for high-flow applications. Users with modified fuel systems should ensure compatibility before purchase.

6. **Limited Customization Beyond Finish**

Unlike some high-end aftermarket parts, the FN1079 offers limited customization options beyond color or finish. Those looking for highly specialized features (e.g., integrated fuel level sensors, custom locking mechanisms) may need to explore other brands.

7. **Potential for Misalignment During Installation**

Improper installation can lead to misalignment of the filler neck with the fuel tank opening, causing leaks or difficulty inserting the fuel nozzle. Careful attention to the installation process is required to avoid this issue.

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### **Conclusion**

The Spectra FN1079 filler neck is a solid choice for many vehicle owners, particularly those seeking a reliable, durable, and cost-effective replacement or upgrade. Its broad compatibility, ease of installation, and resistance to environmental factors make it a practical option for a wide range of applications. However, potential buyers should verify fitment, account for potential seal issues over time, and ensure proper installation to maximize performance.

For most standard applications whether replacing a worn-out OEM part or upgrading an aftermarket fuel tank the FN1079 delivers good value. It is particularly well-suited for trucks, SUVs, and off-road vehicles where durability and functionality are priorities.

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### **Recommendation**

- You need a replacement or upgrade for a common vehicle model (verify fitment first).

- You prioritize durability, ease of installation, and affordability.

- Your fuel system uses standard nozzles and you don t require highly specialized features.

- You plan to install it yourself and are comfortable following instructions carefully.

- Your vehicle has a highly specialized fuel tank or nozzle system.

- You require custom features beyond what the FN1079 offers (e.g., integrated sensors).

- You ve had issues with leaks or seal failures in similar parts and want a premium brand with additional warranties.

For most users, the Spectra FN1079 is a dependable and practical choice, provided proper fitment and installation are confirmed. Always cross-reference the part number with your vehicle s specifications and consider reading recent user reviews for insights into real-world performance.

Details:

Parts must be resalable and in the original packaging. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Electrical parts are not returnable. FUEL FILLER NECK, Filler Neck, fuel, tank, filler, neck, filler fuel tank neck.

Spectra Premium FN1079 Fuel Tank Filler Neck - Direct Fit OE Replacement: Genuine Parts: Innovative engineering, manufacturing technology and quality control ensure that fuel filler necks meet or exceed the performance of original equipment they replace.

part #: fn1079 prices

• $172.95-$176.25

specifications fueltanksysteme:

• brand: Spectra Premium
• mpn: Fn1079
• part type: Fuel Tank Filler
• parts included: Only Part Reference 0 On The Diagram Is Included

seller fueltanksysteme:

• # reviews: 1167
• rating: 99.0%
• city: Dallas, Texas

returns fueltanksysteme:

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

payments fueltanksysteme:

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

offer fueltanksysteme:

• sold: 0
• availability: In Stock
• options: Ship-to-home
• quantity: 3
• started: April 5, 2026

shipping fueltanksysteme:

• type: Fixed
• transit: 4-10 Days
• class: Standard
• cost: $31.48
• service: Standard

general fueltanksysteme:

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

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