DORMAN 577-870 Fuel Tank Filler Neck 019495889892

( Brand: Dorman ), ( Manufacturer Part Number: 577-870 ), ( Manufacturer Warranty: Other ), ( Type: Fuel Tank Filler Neck ), ( UPC: 019495889892 )

Review DORMAN Fuel Tank Filler Neck Gmc Oe Solutions fits SIERRA 1500 2004

The **Dorman 577-870 Fuel Tank Filler Neck** is a high-quality, direct-fit replacement part designed specifically for the **2004 GMC Sierra 1500**, ensuring a seamless and hassle-free installation for vehicle owners seeking to restore or upgrade their fuel system. Engineered to meet or exceed OEM specifications, this filler neck is crafted from durable, corrosion-resistant materials to withstand the rigors of daily driving, harsh weather conditions, and prolonged exposure to fuel vapors. The part features a precise fit with the fuel tank opening, complete with a secure, leak-proof connection that prevents spills and ensures proper fuel flow into the tank. Its robust construction includes a reinforced metal housing and a reliable locking mechanism, designed to resist tampering and maintain a tight seal under pressure. Whether replacing a damaged or worn-out original component or upgrading to enhance fuel system reliability, this Dorman filler neck delivers the performance and longevity expected from a trusted aftermarket brand. Ideal for DIY enthusiasts and professional mechanics alike, it integrates effortlessly with the vehicle s existing fuel lines and cap, providing a clean, professional finish that restores both form and function to the GMC Sierra 1500 s fuel system.

### **Pros and Cons of buying a Dorman 577-870 Fuel Tank Filler Neck for a 2004 GMC Sierra 1500**

1. **Direct Fitment** Designed specifically for the 2004 GMC Sierra 1500, ensuring compatibility without major modifications. This reduces installation time and potential fitment issues.

2. **High-Quality Construction** Dorman is a reputable brand known for durable, well-engineered automotive parts. The filler neck is typically made from sturdy materials that resist warping and corrosion over time.

3. **Easy Installation** As an OEM replacement or upgrade, it often requires minimal tools and labor to install, especially if the original is damaged or leaking. Many users report straightforward bolt-on compatibility.

4. **Improved Functionality** If the original filler neck was cracked, bent, or malfunctioning, replacing it with this part can restore proper fuel flow and prevent spills or fuel leaks.

5. **Cost-Effective Solution** Compared to some specialty or high-end alternatives, the Dorman part offers a balance between affordability and reliability, making it a practical choice for budget-conscious buyers.

6. **Widely Available** Since it s a common replacement part, it can be easily sourced from auto parts stores, online retailers, or directly from Dorman s website, reducing lead times.

7. **Positive User Feedback** Many owners of the 2004 GMC Sierra 1500 report satisfaction with this part, citing reliable performance and longevity after installation.

---

1. **Potential Fitment Variations** Although designed for the 2004 model, slight variations in trim levels, fuel tank designs, or aftermarket modifications (e.g., lifted suspensions) could require additional adjustments or gaskets.

2. **Quality Control Concerns** Like all mass-produced parts, there is a small risk of receiving a defective unit. Inspecting the part upon arrival for cracks, misalignments, or manufacturing flaws is advisable.

3. **Limited Customization** If you re looking for aesthetic upgrades (e.g., a different color or style), this part may not offer those options. It is primarily a functional replacement.

4. **Installation Challenges for DIYers** While generally straightforward, some users may encounter difficulties if the surrounding fuel tank or mounting hardware is corroded or damaged. Professional installation might be necessary in such cases.

5. **Price Sensitivity** For those on a tight budget, the cost of the Dorman part (typically in the $50 $100 range) may be a concern, especially if labor costs are involved. However, it is often priced competitively compared to other brands.

6. **Compatibility with Aftermarket Tanks** If you ve replaced your OEM fuel tank with an aftermarket unit, this filler neck may not fit perfectly, requiring additional adapters or modifications.

7. **Durability Over Time** While Dorman parts are generally durable, prolonged exposure to UV light, road debris, or fuel additives could eventually lead to wear, though this is true of most plastic or metal components.

---

The Dorman 577-870 fuel tank filler neck is a **reliable, cost-effective, and widely compatible** replacement for the 2004 GMC Sierra 1500. Its direct fitment, durability, and ease of installation make it a strong contender for anyone needing to replace a damaged or malfunctioning filler neck. However, potential buyers should verify fitment with their specific trim and fuel system, inspect the part upon receipt, and be prepared for minor adjustments if needed.

For most owners, the **pros outweigh the cons**, making this part a **highly recommended choice** for a functional and long-lasting solution. If budget is a concern, it offers excellent value compared to premium alternatives, while those seeking aesthetic upgrades may need to explore other options.

Purchase the **Dorman 577-870 filler neck** for your 2004 GMC Sierra 1500 if you need a **direct, reliable, and easy-to-install** replacement. Ensure compatibility with your exact trim and fuel system, and consider professional installation if you encounter any fitment or hardware issues. For most users, this part will provide a **durable fix without unnecessary complications**.

Details:

This part fits vehicles made in the following years 2004. Fuel Tank Filler Neck. Fuel filler neck leaking.

part #: 577870 prices

• $123.25-$158.17

specifications fueltanksysteme:

• for models: 1500, Sierra
• for makes: Gmc
• for years: 2004
• brand: Dorman
• mpn: 577-870
• manufacturer warranty: Other
• type: Fuel Tank Filler Neck
• upc: 019495889892

seller fueltanksysteme:

• # reviews: 35693
• city: Deerfield Beach, Florida
• rating: 99.3%

returns fueltanksysteme:

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

offer fueltanksysteme:

• availability: In Stock
• quantity: 1
• started: March 20, 2026
• sold: 0
• options: Ship-to-home

shipping fueltanksysteme:

• cost: $0.00
• service: Expedited
• class: Expedited
• type: Fixed
• transit: 4-8 Days

payments fueltanksysteme:

• other
• wallet: Paypal
• credit card: Visa

general fueltanksysteme:

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

Dorman 577-870 Is Similar To:

• 019495103219 Dorman Fuel Vapor Leak Detection Pump (38.4% similar) This item has been cleaned and sanitized to ensure your complete satisfaction. Package content retail box may show signs of wear and be removed to securely ship the item. Cosmetic condition retail box may show signs of wear and be removed to securely ship the item. Get-warranty and enter the item ...(March 28th, 2018)
• 157-5509 Dorman Fuel Gas Tank Step Stair Lh Or Rh For (40.6% similar) Questions: were here for you. Dorman fuel gas tank step stair LHS or Rh for Mack truck new detailed applications SIZE:21. 9 of packages the same day if ordered before 4PM est...(January 8th, 2019)
• 285-5104 Dorman Fuel Sending Unit (29.6% similar) L6 diesel turbocharged page 1 of 30...(September 4th, 2018)
• 285-5110 Dorman Fuel Tank Sender (35.5% similar) Dorman designs packages and markets over different products manufactured to its specifications. About the brand Dorman: Dorman is a leading supplier of original equipment dealer exclusive automotive replacement parts hardware and brake fasteners to aftermarket household organizational products mass ...(June 28th, 2018)
• 285-5503 Dorman Fuel Sending Unit 019495423065 (34.7% similar) Dorman fuel sending unit Dorman restores proper gauge readings. Since this part is direct replacement, the exact fit adds another layer of convenience. All units include the necessary installation hardware and lock rings for a bolt-off bolt-on solution...(June 21st, 2018)
• 285-5504 Dorman Fuel Tank Sender (35.5% similar) Dorman designs packages and markets over different products manufactured to its specifications. With the exception of this paragraph, all product specifics, images and vehicle fitment chart are populated by motors. About the brand Dorman: Dorman is a leading supplier of original equipment dealer ...(July 22nd, 2018)
• 285-5506 Dorman First Stop Fuel Tank Sending Unit 019495423096 (39.4% similar) Just the option. Your satisfaction is our motivation. Our expertise your car is one of most important investments so we treat vehicle as the asset it...(September 17th, 2018)
• 285-5509 Fuel Senders Dorman Hd Solutions 019495423126 (26.4% similar) 96009 dimensions: in. Year make model...(January 15th, 2019)
• 310-202 Dorman Fuel Vapor Leak Detection (41.7% similar) Dorman oe solutions supplied your vehicles manufacturer with the fuel tank filler misc. All products are covered by manufacturers warranty. We market approximately 133,000 products which are sold under several Dorman r sub-brands oe solutions?, help. Emission code: 1FEATURE - benefit 2: direct ...(March 12th, 2017)
• 310-205 Dorman Fuel Vapor Leak Detection (41.7% similar) Life cycle status code 2LIFE cycle status available to order material plastic nation AL popularity code outlet outside diameter. 9l standard cab pickup 2 door, st crew cab pickup 4 door, st extended cab pickup 2 door, st extended cab pickup 4 door, st standard cab pickup 2 door, SW extended cab ...(December 15th, 2016)
• 310-208 Dorman Fuel Vapor Leak Detection Pump 019495103387 (36.1% similar) Emission code: 1FILTER included: no harmonized tariff schedule b inlet outside diameter. Brands: cortex automotive division, Eng. Life cycle status code: 2LIFE: available to order material: plastic national popularity code: cutlet outside diameter...(March 23rd, 2018)