DORMAN 577-811 Fuel Tank Filler Neck FN688

( Brand: Dorman ), ( Manufacturer Part Number: 577811 ), ( Part Type: Fuel Tank Filler ), ( Ipn: Fn688 ), ( Compatibility: 1999 Buick Century Custom Sedan 4-door 3.1l 189cu. In. V6 Gas Ohv )

Review DORMAN Fuel Tank Filler Neck

The **Dorman 577811 (part number 577-811) Fuel Tank Filler Neck** is a high-quality, direct-fit replacement component designed to restore proper functionality and aesthetics to your vehicle s fuel system. Engineered to meet or exceed OEM specifications, this filler neck is crafted from durable, corrosion-resistant materials to ensure long-lasting performance in demanding driving conditions. The unit features a precision-machined metal housing with a smooth, seamless finish that aligns perfectly with the original equipment design, minimizing gaps and preventing leaks or debris intrusion. Its robust construction includes a secure, tamper-resistant locking mechanism, often equipped with a spring-loaded or snap-fit closure to maintain a tight seal while allowing easy access for refueling. Ideal for a wide range of applications, including but not limited to Ford, GM, and Chrysler vehicles, this filler neck is compatible with standard fuel caps and is designed to accommodate both gasoline and ethanol-blended fuels without compromising integrity. Whether you re performing routine maintenance, upgrading an older vehicle, or replacing a damaged part after an accident, the Dorman 577811 offers a reliable, hassle-free solution that ensures optimal fuel system operation and enhances the overall appearance of your vehicle s fuel compartment. Built to withstand the rigors of daily use, this aftermarket replacement is backed by Dorman s reputation for quality, providing peace of mind with every installation.

**Pros and Cons of buying a Dorman 577811 (577-811) Fuel Tank Filler Neck**

1. **Compatibility and Fit:** Dorman is a well-known brand in the automotive aftermarket, and this specific part is designed to fit a wide range of vehicles, including many Ford, GM, and Chrysler models from the late 1990s through the early 2010s. The part is engineered to match OEM (Original Equipment Manufacturer) specifications, ensuring a proper fit and function.

2. **Quality and Durability:** Dorman products are generally manufactured to high standards, using materials that are durable and resistant to wear, corrosion, and fuel degradation. This filler neck is likely to last as long as the original part, if not longer, depending on maintenance and driving conditions.

3. **Ease of Installation:** The part is straightforward to install, especially for those with basic mechanical skills. It typically requires only basic tools, and the installation process usually involves removing the old filler neck, cleaning the area, and securing the new one in place. Dorman provides clear instructions, and the part is often sold with necessary hardware like clamps or gaskets.

4. **Cost-Effective:** Compared to purchasing an OEM replacement part, the Dorman filler neck is usually more affordable. This makes it an attractive option for budget-conscious consumers who still want a reliable aftermarket solution.

5. **Availability:** Dorman parts are widely available through auto parts stores, both in-person and online. This ensures that you can easily find the part and have it shipped quickly if needed.

6. **Warranty and Support:** Dorman offers warranties on many of its products, providing some level of protection against defects. Additionally, Dorman s reputation for customer service means that if issues arise, support is often accessible.

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1. **Quality Variations:** Like many aftermarket parts, the quality can vary depending on the specific batch or manufacturing run. Some users report that certain Dorman parts may not meet the same exacting standards as OEM components, leading to minor issues like leaks or misalignment during installation.

2. **Mismatched Materials:** In rare cases, the materials used in the aftermarket part may not perfectly match those of the original component. This could lead to compatibility issues with certain fuel systems or seals, though this is uncommon with reputable brands like Dorman.

3. **Limited Customization:** Since this is a standard replacement part, it does not offer any customization options. If your vehicle has unique modifications or requires a non-standard fit, you may need to seek out a specialized part or consult a mechanic.

4. **Potential for Counterfeit Parts:** Purchasing from untrusted sellers especially online can result in receiving counterfeit or low-quality parts that are mislabeled as Dorman. Always buy from authorized dealers or reputable retailers to avoid this risk.

5. **Installation Challenges:** While generally easy, some users may encounter difficulties during installation, particularly if the surrounding components (like the fuel tank or filler door) are damaged or misaligned. In such cases, additional work or professional assistance may be required.

6. **Warranty Limitations:** Dorman s warranty may not cover all potential issues, especially if the part is installed incorrectly or if the vehicle s fuel system is already compromised. Always review the warranty terms before purchasing.

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The Dorman 577811 fuel tank filler neck is a solid aftermarket replacement option for many vehicles, offering a balance of affordability, compatibility, and durability. It is an excellent choice for DIY enthusiasts or those looking to save money without sacrificing quality. However, as with any aftermarket part, there are potential drawbacks, including occasional quality variations and the risk of counterfeit products. To mitigate these risks, always purchase from trusted sources and ensure proper installation.

If you are replacing a faulty or damaged fuel tank filler neck on a compatible vehicle, the Dorman 577811 is a highly recommended choice. It provides a reliable and cost-effective solution for most applications. Before purchasing, verify that the part matches your vehicle s make, model, and year using the vehicle identification number (VIN) or consulting a parts compatibility guide. If you are unsure about installation, consider consulting a professional mechanic to ensure the job is done correctly. For long-term reliability, pair this part with high-quality fuel line clamps and seals to prevent leaks.

Details:

Engineered with a factory-like design for effortless installation, ensuring perfect match your vehicle. Designed specifically for trucks, trailers, and buses. Engineered using the latest technology to ensure product lasts longer in service. Made of high-quality components for durability, reliability, and performance.

Dorman 577-811 Fuel Tank Filler Neck: Part Number: Manufacturer. Manufactured following strict OE standards to work like the original component.

part #: 577811 prices

• $85.49-$142.64

specifications fueltanksysteme:

• brand: Dorman
• mpn: 577811
• part type: Fuel Tank Filler
• ipn: Fn688
• compatibility: 1999 Buick Century Custom Sedan 4-door 3.1l 189cu. In. V6 Gas Ohv

shipping fueltanksysteme:

• class: Standard
• type: Fixed
• transit: 2-7 Days
• service: Standard
• cost: $0.00

general fueltanksysteme:

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

offer fueltanksysteme:

• options: Ship-to-home
• started: February 12, 2026
• best offers: True
• quantity: 1
• sold: 0
• availability: In Stock

payments fueltanksysteme:

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

returns fueltanksysteme:

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

seller fueltanksysteme:

• city: Los Angeles, California
• # reviews: 64750
• rating: 99.2%

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